Soundbars / Compare

Hisense AX5140Q vs Polk Audio Signa S4

A

Product A: Hisense

AX5140Q

59 of 98 known

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B

Product B: Polk Audio

Signa S4

50 of 98 known

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Every value links to where we found it.

Only differences

AHisense AX5140Q

BPolk Audio Signa S4

Audio system

12 of 17 differ

System channel configurationiMaker-stated channel layout of the exact package, such as 5.1.2. This can include virtual channels. It is not a count of physical drivers. Optional speakers do not count.

5.1.41Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Channels 5.1.4 CH.

3.1.22Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026Infosheet: Dolby Atmos 3.1.2 sound bar with wireless subwoofer.

Physical drivers in the packageiCount of physical active speaker drivers across the supplied bar, subwoofer and rear speakers. Passive radiators, microphones and virtual channels do not count. A coaxial driver, such as KEF Uni-Q, counts once, as makers count it.

131Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Feature text: 13 speakers, 5 full-range and 3 tweeters in the soundbar, 4 full-range surround speakers and a wireless subwoofer.3Press releasefiles.hisense-usa.com/download/f2767dd6ec1b3ee6Read 14 October 2026Release: a total of 13 speakers, including up-firing drivers and a 6.5-inch subwoofer.

82Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026Seven drivers in the bar plus one woofer in the subwoofer, from the infosheet driver list. The Denon page copy says eleven drivers. That copy does not match the maker driver list and is not used.

Physical drivers in the bariCount of physical active speaker drivers in the soundbar alone. Passive radiators and virtual channels do not count. A coaxial driver, such as KEF Uni-Q, counts once, as makers count it.

81Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: soundbar 5 full range and 3 tweeter, which is 8 drivers.

72Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Up-firing drivers in the packageiPhysical active drivers explicitly firing upwards across the supplied package. Virtual height channels and passive radiators do not count. A driver that fires upwards only when the bar is wall mounted is not counted.

44Press releaseaap.com.au/aapreleases/cision20250710ae26935Read 14 October 2026Release: a 5.1.4-channel layout and four up-firing speakers. The maker's US shop copy says the rear surround speakers add two up-firing speakers, so the soundbar has the other two.

22Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Driver layoutiPublished physical driver layout for the supplied components. A row names one driver type in one component. Do not translate channel count into driver count.

AHisense AX5140Q

Component	Driver type	Count	Diameter (mm)
Soundbar	Full-range driver	5	Not available
Soundbar	Tweeter	3	Not available
Surround speakers (both enclosures)	Full-range driver	4	Not available
Subwoofer	Active woofer	1	165.1

Source1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table speakers row: soundbar 5 full range and 3 tweeter, surround speakers 4 full range, subwoofer 6.5 inch x 1. Only the subwoofer driver diameter is published. The 4 surround drivers are 2 in each of the 2 enclosures.

BPolk Audio Signa S4

Component	Driver type	Count	Diameter (mm)	Orientation
Soundbar	Tweeter (left and right)	2	25	Front-firing
Soundbar	Racetrack midrange (left and right), 120 × 40 mm	2	Not available	Front-firing
Soundbar	Full-range center	1	25	Not available
Soundbar	Elevation (left and right)	2	66	Up-firing
Subwoofer	Woofer	1	150	Down-firing

Source2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026Infosheet lists two 1 in tweeters, two 4.7 x 1.6 in racetrack mids, one 1 in full-range center and two 2.6 in elevation drivers in the bar, and one 5.9 in woofer in the subwoofer. Metric sizes as published. Elevation and subwoofer firing directions come from the Trusted Reviews review.

Separate subwoofer includediA separate powered subwoofer is supplied with the reference package. A built-in woofer does not count.

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Subwoofer Wireless Subwoofer 6.5 inch x 1.

Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Included subwoofer connectioniAudio link used by the supplied separate subwoofer. Wireless subwoofers can still require an AC power cable.

Wireless1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: wireless subwoofer. The manual shows it needs its own AC power cord.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed pages 12 and 17: the subwoofer pairs wirelessly with the soundbar on 5.8 GHz and has its own AC IN socket.

Wireless2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Included subwoofer driver diameteriPublished diameter of an active driver in the supplied separate subwoofer. Do not use enclosure size or passive radiator size.

165.1mm1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Subwoofer 6.5 inch x 1, which is 165.1 mm.

150mm2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026Infosheet: woofer 5.9 in / 15 cm. Some retailer copy says 5.25 in. The maker figure is stored.

Rear speakers includediCount of separate rear speaker enclosures supplied with the reference package. Detachable bar ends count when usable as rears. Optional rear speakers do not count.

21Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Feature text: a soundbar, two wireless speakers and a wireless subwoofer. Spec table: surround speakers 4 full range.

02Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026What is in the Box lists a sound bar and a subwoofer only. The Trusted Reviews review says rear speakers cannot be added.

Included rear speaker connectioniAudio link to the supplied rear speaker enclosures. Their power connection is separate.

Wireless2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed pages 12 and 17: the surround speakers pair wirelessly with the soundbar on 5.8 GHz and each uses an AC adapter for power.

Not available

Detachable rear speakersiThe bar has supplied detachable end sections usable as separate rear speakers.

No2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed pages 5 to 7: the surround speakers are separate enclosures and the soundbar has no detachable ends.

Not available

Compatible optional subwoofersiMaker-named compatible additional subwoofer models. These do not contribute to the reference package layout, dimensions or measurements.

Not available

Not available

Compatible optional rear speakersiMaker-named compatible additional rear speaker models. These do not contribute to the reference package layout, dimensions or measurements.

Not available

Not available

Total RMS audio output poweriMaker-stated RMS or rated continuous amplifier output for the exact supplied package. Peak or unspecified maximum claims do not qualify. Distortion, load and rating conditions belong in the source note. Power consumption is separate.

Not available

Not available

Total peak audio output poweriMaker-stated peak or maximum amplifier output for the exact supplied package. This is separate from RMS or continuous output and from electrical consumption. Rating conditions belong in the source note.

600W1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Max Audio Power 600W. The manual splits it as soundbar 200 W, subwoofer 280 W and surround 120 W. The feature text on this page says the subwoofer has 120W max audio power. The manual figure of 280 W is the one that adds to 600 W.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 17: Amplifier (Max audio power) total 600 W, soundbar 200 W, subwoofer 280 W, surround 120 W. No distortion level or RMS rating is given.

Not available

Published frequency response lower limitiMaker-published lower limit for the exact supplied package. Tolerance and test conditions belong in the source note. Reviewer extension measurements are separate.

40Hz1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Frequency Response 40Hz-20KHz for the system. The manual gives the soundbar 120 Hz to 20 kHz, the subwoofer 40 Hz to 150 Hz and the surround speakers 180 Hz to 20 kHz. No tolerance is stated.

Not available

Published frequency response upper limitiMaker-published upper limit for the exact supplied package. Tolerance and test conditions belong in the source note.

20kHz1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Frequency Response 40Hz-20KHz for the system. No tolerance is stated.

Not available

Audio formats

5 of 9 differ

Dolby AtmosiExplicit support for Dolby Atmos playback. Transport codec and connection restrictions belong in source notes.

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table audio decoder: Dolby Atmos.

Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

DTS:XiExplicit support for DTS:X playback. Virtual surround processing alone does not establish DTS:X decoding.

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table audio decoder: DTS-X and DTS Virtual:X.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 14 display table lists DTS:X and DTS:X Master Audio. Page 5 names DTS:X.

No4Reviewtrustedreviews.com/reviews/polk-signa-s4Read 13 October 2026Review states the sound bar decodes PCM and Dolby formats and has no support for any DTS format. The maker manual lists no DTS format.

Supported audio formatsiAudio formats explicitly decoded by the device. Codec and connection restrictions belong in source notes. Bluetooth codecs and music-file formats are separate.

Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos, DTS Digital Surround, DTS Express, DTS-HD High Resolution Audio, DTS-HD Master Audio, DTS:X, LPCM1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table audio decoder: Dolby Atmos, Dolby TrueHD, Dolby Digital Plus, Dolby Digital, DTS:X, DTS Digital Surround, DTS decoder, PCM and multi-channel PCM. The manual lists the exact DTS variants.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed pages 14 and 15 format display table: LPCM 2.0, 5.1 and 7.1, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos over TrueHD and over Dolby Digital Plus, DTS, DTS Discrete Surround, DTS-ES, DTS 96/24, DTS Express, DTS-HD High Resolution, DTS-HD Master Audio, DTS:X. No connection is named per format.

Linear PCM, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026Specifications page: Linear PCM, Dolby Digital, Dolby Digital Plus, Dolby TrueHD and Dolby Atmos. No DTS format is listed.

Audio formats by connectioniExplicitly supported audio decoding combinations. Max input channels counts decoded input audio channels, including LFE. A 5.1 layout has 6 channels and 7.1 has 8. Output speaker layouts and Atmos objects do not count. Atmos over Dolby Digital Plus and over Dolby TrueHD are separate rows. Format support on one input does not prove support on another.

AHisense AX5140Q

Not available

BPolk Audio Signa S4

Connection	Format
HDMI eARC	Dolby Atmos

Source2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026Maker states Dolby Atmos needs the HDMI eARC connection between sound bar and TV. No other connection-specific format limits are published.

Music file formatsiPublished local or network music-file playback formats. Playback route and app restrictions belong in source notes.

WAV, WMA, MP3, FLAC1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026The spec table lists FLAC, WAV, ALAC, WMA, MP3, AAC and AAC+ as audio file formats with no route. The manual states the USB port plays WAV, WMA, MP3 and FLAC, and that list is used.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 15 USB operation: the unit plays WAV, WMA, MP3 and FLAC from USB devices up to 32 GB. Page 17 specifications: USB 2.0, FAT32 and FAT16, 32 GB max.

Not available

Max wired audio sample rateiHighest explicitly published supported sample rate for decoded wired audio input. Name the exact HDMI, ARC, eARC or optical connection and codec in source notes. This is the published route limit, not proof of a device-wide maximum across all inputs. Local or network music-file limits and Bluetooth do not qualify. A chipset limit is not device evidence.

Not available

48kHz3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026Specifications page lists sampling frequency 32, 44.1 and 48 kHz for the sound bar. It does not name the connection or codec.

Max music file sample rateiHighest explicitly published supported local or network music-file sample rate. Name the playback route and file format in source notes. This is the published route and format limit, not proof of a device-wide maximum across all music formats. Wired HDMI or optical input and Bluetooth are separate.

Not available

Not available

Max wired audio bit depthiHighest explicitly published supported bit depth for decoded wired audio input. Name the exact HDMI, ARC, eARC or optical connection and codec in source notes. This is the published route limit, not proof of a device-wide maximum across all inputs. Local or network music-file limits and Bluetooth do not qualify.

Not available

Not available

Max music file bit depthiHighest explicitly published supported local or network music-file bit depth. Name the playback route and file format in source notes. This is the published route and format limit, not proof of a device-wide maximum across all music formats. Wired HDMI or optical input and Bluetooth are separate.

Not available

Not available

Connectivity

6 of 17 differ

Ports on the bariPhysical connectors on the soundbar alone. Record input, output, ARC or eARC, service, subwoofer and power roles explicitly. Count identical connectors per row. Component connectors are described in source notes.

AHisense AX5140Q

Connector	Count	Version	Role
HDMI	1	Not available	HDMI IN for source devices
HDMI	1	Not available	HDMI (TV eARC/ARC) output to the TV
Optical	1	Not available	Digital audio input
3.5 mm audio	1	Not available	AUX audio input
USB-A	1	2.0	USB storage music playback, 5 V 500 mA
AC power	1	Not available	Soundbar power input

Source2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 6 and page 17: AUX socket (3.5 mm), USB socket (USB 2.0, 5 V 500 mA), HDMI IN, HDMI (TV eARC/ARC), OPTICAL and AC IN. The USB connector type is not named in text. The subwoofer has its own AC IN socket and the surround speakers have DC IN sockets.

BPolk Audio Signa S4

Connector	Count	Version	Role
HDMI	1	2.1	TV connection with eARC or ARC
Optical	1	Not available	Digital audio input
3.5 mm audio	1	Not available	Analog AUX audio input
USB-A	1	Not available	Firmware updates
AC power	1	Not available	Soundbar power input

Source2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026Infosheet inputs: one HDMI eARC output, one optical input, one 3.5 mm analog input, Bluetooth and one USB-A for firmware updates. The manual also describes a hidden USB music input. HDMI 2.1 comes from the launch announcement text on Home Theater Forum and the Greentoe retailer table, not from the maker documents.

HDMI ARC

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: HDMI eARC, CEC Yes.

Yes3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026

HDMI eARC

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: HDMI eARC, CEC Yes.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 6: the HDMI (TV eARC/ARC) socket supports the eARC/ARC feature.

Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

HDMI-CEC

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: HDMI eARC, CEC Yes.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 9: ARC and eARC use needs the TV to be HDMI-CEC and ARC compliant and the volume can be controlled from the TV remote.

Yes3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026

HDMI video passthroughiCan pass video from a dedicated HDMI source input to a television output. ARC or eARC alone does not qualify.

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: HDMI Input Yes, 1. The US press release states 4K 60Hz passthrough.3Press releasefiles.hisense-usa.com/download/f2767dd6ec1b3ee6Read 14 October 2026Release: support for HDMI In and 4K 60Hz passthrough.

No3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026The only HDMI connector is the TV eARC/ARC connection. There is no HDMI source input.

Video passthrough modesiPublished supported passthrough combinations, not inferred maxima at untested resolutions. State chroma, bit depth, HDR and firmware restrictions in source notes.

AHisense AX5140Q

Width (px)	Height (px)	Refresh rate (Hz)
3840	2160	60

Source3Press releasefiles.hisense-usa.com/download/f2767dd6ec1b3ee6Read 14 October 2026Release: 4K 60Hz passthrough. Chroma, bit depth and HDR restrictions are not stated.

BPolk Audio Signa S4

Not available

HDR passthrough formats

Not available

Not available

VRR passthrough

Not available

Not available

ALLM passthrough

Not available

Not available

HDCP versioniHighest HDCP version the maker states for an HDMI port of the soundbar, such as 2.3. When the source inputs and the TV output differ, the source input version is stored. A bar with no HDMI input stores the version of its TV output, also when that output carries video from a built-in streaming player.

Not available

Not available

Bluetooth audio inputiCan receive audio from a Bluetooth source. A Bluetooth remote alone does not qualify.

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Bluetooth Yes, BT 5.3 version.

Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Bluetooth versioniPublished version of the soundbar audio connection. An optional remote or detachable rear can use a different version.

5.31Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: BT 5.3 version.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 17: Bluetooth version V 5.3 with A2DP and AVRCP. No codec is named.

5.03Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026Specifications page: Bluetooth Version 5.0, Power Class 2, A2DP 1.3 and AVRCP 1.6.

Bluetooth audio codecsiExplicitly supported codecs for received Bluetooth audio. A Bluetooth version alone does not establish a codec.

Not available

SBC3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026Specifications page: corresponding codec SBC.

Wi-Fi

No1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Wi-fi No. The page also has an app-control feature block with ConnectLife and voice assistants. That block conflicts with Wi-fi No and with the manual, which names no app. It is not used.

Not available

Wi-Fi standardiPublished Wi-Fi standards for the soundbar, written as 802.11 names without IEEE, such as "802.11a/b/g/n/ac/ax". A Wi-Fi generation is written as its standard, so Wi-Fi 5 is "802.11ac" and Wi-Fi 6 is "802.11ax". Do not infer the standard from frequency bands.

Not available

Not available

Wi-Fi bandsiPublished radio bands, such as 2.4 GHz and 5 GHz.

Not available

Not available

Built-in Ethernet speediRated speed of the built-in port. An optional adapter does not count.

Not available

Not available

Streaming and control

0 of 8 differ

Streaming protocolsiNamed network playback protocols, such as AirPlay 2, Google Cast, Spotify Connect and Tidal Connect. Bluetooth is separate.

Not available

Not available

Voice assistantsiNamed assistants supported by the soundbar. Built-in and external-device routes and market restrictions belong in source notes.

Not available

Not available

Built-in microphoneiPhysical microphone in the bar for voice or calibration. An external setup phone or remote microphone does not count.

Not available

Not available

Microphone mute controliA physical control on the soundbar explicitly disables its built-in voice microphone. State whether this is an electrical switch or software-controlled button when known.

Not available

Not available

Companion apps

Not available

Not available

Companion app platforms

Not available

Not available

Multiroom audioiCan play synchronised audio with other rooms through a supported network platform. Optional surround expansion alone does not qualify.

Not available

Not available

Remote includediA separate remote control supplied with the reference package. Phone apps and TV remotes do not count.

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table accessories: Remote Yes, 2 units AAA batteries included.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 7: remote control with 2 AAA batteries.

Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026

Sound processing

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Sound modes

Movie, Music, News, Sport, Game Pro, Voice, Night, AI, Pure Surround, Surround Pro, DTS Virtual:X1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table sound mode: Movie, Music, News, Night, Sport, Game and AI. The manual adds Voice and the surround settings.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed pages 7 and 13: EQ presets Movie, News, Music, Game Pro and Sport. Sound modes Sound Mode Off, Voice, Night and AI. Surround Pure, Pro and Off. The setup menu has a Virtual:X switch.

Movie, Music, Night2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Automatic room calibrationiExplicit acoustic measurement or analysis used to adapt playback to the room. Manual EQ alone does not qualify. Setup phone requirements belong in source notes.

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Feature text: Room Acoustic Calibration automatically adjusts audio to your room. Available on select Hisense TVs (UXQG, U88QG, U78QG).2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 10: Room Fitting Tuning analyzes the listening room environment and listening position through the TV and gives optimized sound. It works when the soundbar connects to some Hisense TVs.

Not available

Room calibration system

Room Fitting Tuning1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table other features: Room Fitting Tuning is named in the manual. The page calls the feature Room Acoustic Calibration.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 10: the feature is called Room Fitting Tuning.

Not available

Dialogue enhancementiA dialogue or voice mode counts, also when the maker lists it as an EQ preset.

Yes2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 13: the Voice sound mode. The setup menu also has a Dialog Control Level.

Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Night mode

Yes2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 13: the Night sound mode.

Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Equalizer controlsiPublished user-adjustable EQ controls. Bass and treble controls are distinct from multi-band EQ.

Bass, Treble, Subwoofer level, Center level, Front height level, Rear surround level, Rear height level, Left/right balance2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed pages 13 and 14: bass and treble from the remote, and a Level menu for subwoofer, center, front height, rear surround, rear height surround and left and right balance.

Bass Adjust2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

TV speaker integrationiNamed features allowing compatible television speakers to play with the bar. TV models and connection requirements belong in source notes.

Hi-Concerto1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Feature text: Hi-Concerto uses the TV speakers and the soundbar together. Applicable Hisense TVs are UXQG, U88QG and U78QG.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 9: the Hi-Concerto function plays the soundbar audio in sync with a Hisense TV that supports it. It needs the TV Speaker with Soundbar (Hi-Concerto) option on the TV.

Not available

Power

2 of 6 differ

Published operating poweriMaker-published operating electrical consumption of the soundbar alone. Included subwoofer and rear-speaker consumption do not count. Keep workload and method in source notes. Audio amplifier output is separate.

40W1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Power Consumption 40W. The manual lists 40 W for the soundbar and 40 W for the subwoofer separately. This is an electrical rating and not audio output.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 17: soundbar power consumption 40 W. The subwoofer is listed separately at 40 W and is excluded. The soundbar line has no workload stated.

40W3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026Sound bar specifications: power consumption 40 W. The subwoofer is listed separately at 40 W.

Published standby poweriMaker-published non-networked standby consumption of the bar alone. Networked standby and other components are separate.

0.5W1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Standby Consumption 0.5 W or less, published as 0.5 W or below. Stored as 0.5.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 17: < 0.5 W (StandBy). Stored as 0.5 and published as below 0.5.

1.5W3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026Sound bar standby mode 1.5 W. Deep standby mode 0.3 W. The sound bar has no network standby.

Published networked standby poweriMaker-published networked standby consumption of the bar alone. Enabled radio and network conditions belong in source notes.

Not available

Not available

Power supplyiPublished AC input range or external DC adapter arrangement. Electrical input ratings are not operating consumption.

AC 100-240 V, 50/60 Hz on the soundbar and subwoofer. Each surround speaker uses an external AC adapter with 24 V 1.5 A output.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 17: soundbar and subwoofer power supply 100-240V~ 50/60Hz. Surround speaker adapter DK42C-240-1500, input 100-240V~ 50/60Hz 1.0A, output 24V 1.5A.

Sound bar: AC 100 to 240 V, 50/60 Hz. The wireless subwoofer has its own power cord, AC 100 to 240 V, 50/60 Hz.3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026

Detachable rear battery lifeiMaker-stated runtime of the supplied detachable rear speakers. Volume, mode and recharge conditions belong in source notes.

Not available

Not available

Detachable rear charge timeiMaker-stated full recharge time of supplied detachable rear speakers. Charging route belongs in source notes.

Not available

Not available

Measured

None of 8 known

Low-frequency extension (measured)iReviewer-measured lower extension for the exact tested package. Test threshold, mode, room correction and configuration belong in source notes.

Not available

Not available

High-frequency extension (measured)iReviewer-measured upper extension for the exact tested package. Test threshold and configuration belong in source notes.

Not available

Not available

Max sound pressure (measured)iReviewer-measured maximum sound pressure. Signal, distance, sound mode and supplied or optional speaker configuration belong in source notes.

Not available

Not available

Frequency response deviation (measured)iReviewer-measured standard error against the stated target. Target, averaging range, preset and test method belong in source notes.

Not available

Not available

Measured latencyiReviewer-measured audio latency. Keep source/TV, firmware, codec, synchronisation correction and exact tested speaker configuration in source notes. Negative offsets are valid when the method reports them.

Not available

Not available

Operating power (measured)iReviewer-measured operating consumption of the soundbar alone. Optional or supplied external speakers do not count. Workload and enabled radio conditions belong in source notes.

Not available

Not available

Standby power (measured)iReviewer-measured bar-only standby consumption. Network state and test conditions belong in source notes.

Not available

Not available

Soundbar weight (measured)iReviewer-measured bar-only weight. Excludes subwoofer, rears, mounting hardware and cables.

Not available

Not available

Dimensions and weight

5 of 6 differ

Soundbar dimensionsiBar alone in its normal tabletop orientation, without detachable rears, wall brackets or external cables. A source that includes detachable ends must use component_dimensions instead. A size labelled L x W x H, as on Amazon, is width x depth x height.

Width1,020Height59Depth108mm(40.2 × 2.3 × 4.3 in)2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 17: soundbar dimension (WxHxD) 1020 x 59 x 108 mm. The Canadian page gives a height of 57 mm. The manual value is used.

Width1,046Height60Depth95mm(41.2 × 2.4 × 3.7 in)2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026Infosheet gives sound bar W x D x H as 1046 x 95 x 60 mm.

Soundbar weightiBar alone, without detachable rears, subwoofer, wall brackets or external cables. Source-published masses including detachable ends belong in component_dimensions.

2,700g(6 lb)2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 17: soundbar net weight 2.7 kg. The Canadian page gives 7.04 kg, which is more than the whole 12.3 kg package allows with a 5.5 kg subwoofer and two surround speakers, so it is not used.

2,900g(6.4 lb)3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026Sound bar weight 6 lbs 6 oz (2.9 kg). Subwoofer weight 9 lbs 1 oz (4.1 kg).

Component dimensions and weightiPublished dimensions and mass for named supplied components, including a bar with detachable rears attached when stated. Each row describes one enclosure, not the pair, unless the component label explicitly states a set. Width, height and depth use normal installed orientation.

AHisense AX5140Q

Component	Width (mm)	Height (mm)	Depth (mm)	Weight (g)
Subwoofer	335	335	160	5,600
Surround speaker (each)	100	202	119	700

Source1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: subwoofer 335 x 335 x 160 mm and 5.5 kg, surround speaker 100 x 201 x 119 mm with a weight of 1.4 kg that is for the pair. The manual gives the subwoofer as 163 x 338 x 335 mm and 5.6 kg and the surround speaker as 100 x 202 x 119 mm at 0.7 kg each. The subwoofer is a front-firing square cabinet in the maker image, so the page order of 335 x 335 x 160 mm is used for width, height and depth. The weights are from the manual.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 17: subwoofer net weight 5.6 kg. Surround speaker 100 x 202 x 119 mm, 1.4 kg (0.7 kg x 2). The manual subwoofer size is listed as 163 x 338 x 335 mm, which does not fit the maker image, so the page size is used for the subwoofer.

BPolk Audio Signa S4

Component	Width (mm)	Height (mm)	Depth (mm)	Weight (g)
Subwoofer	200	280	328	4,100

Source2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026Infosheet gives subwoofer W x D x H as 200 x 328 x 280 mm. Weight comes from the manual.

Package dimensions

Width1,090Height520Depth220mm(42.9 × 20.5 × 8.7 in)1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Package Dimensions 1090 x 520 x 220 mm.

Width1,117.6Height263.7Depth441.5mm(44 × 10.4 × 17.4 in)7Retailer pagegreentoe.com/product/Polk_Audio_Signa_S4_3-1-2-Channel_Dolby_Atmos_Soundbar_System_300443-01-00-101Read 13 October 2026Retailer table lists box dimensions (LxWxH) as 44 x 17.38 x 10.38 in. Mapped to width, depth and height in that order. Inches converted exactly to mm and rounded to 0.1 mm.

Package weightiShipping package including supplied components and packaging.

12,300g(27.1 lb)1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Package Weight (gross weight) 12.3 kg.

9,584g(21.1 lb)7Retailer pagegreentoe.com/product/Polk_Audio_Signa_S4_3-1-2-Channel_Dolby_Atmos_Soundbar_System_300443-01-00-101Read 13 October 2026Retailer table lists package weight 21.13 lb. NFM lists 21.20 lb. Converted exactly and rounded to 1 g.

Wall mountable

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table lists a wall mount kit. The manual has wall mounting chapters for the soundbar and the surround speakers.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed pages 8 and 9 describe wall mounting the soundbar and the surround speakers.

Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026Page copy describes a low-profile, wall-mountable design. Wall mount template and spacers are supplied. Screws are not listed.3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026Section Hanging the sound bar on a wall describes two keyholes and the supplied template and spacers.

In the box

3 of 4 differ

In the box

Soundbar, Wireless subwoofer, Surround speakers (2), Remote control, AAA batteries (2), AC power cords (2), AC adapters (2), HDMI cable, User manual, warranty card and quick start guide, Wall mount kit2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 5: soundbar, wireless subwoofer, 2 surround speakers, remote control and 2 AAA batteries, 2 AC power cords, 2 AC adapters, HDMI cable, user manual, warranty card and quick start guide, wall mount kit.

Sound bar, Subwoofer, Remote control, Sound bar power cord, Subwoofer power cord, HDMI cable, Optical cable, 2 AAA batteries, Quick start guide, Registration card, Safety card, Wall mount template, Wall mount spacers1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026Specifications tab What's in the Box. The infosheet lists one power cord. The page lists sound bar and subwoofer power cords.

Wall mount hardware includediSupplied bar mounting brackets or mount. Screws alone do not establish that a complete mount is included.

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Wall Mount Kit Yes, included.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 5: wall mount kit in the box. Pages 8 and 9 describe mounting the soundbar and the surround speakers.

Not available

HDMI cable included

Yes1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: HDMI Cable 1 (1.5m).2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 5: HDMI cable in the box.

Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026

Optical cable included

No1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026The spec table lists an HDMI cable and power cables and no optical cable. The manual box list has no optical cable.2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026Printed page 5 box list has no optical cable. The optical connection chapter says to use an optical cable.

Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026

General

4 of 7 differ

Series

AX Series1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026The page sits in the Hisense AX soundbar range and calls the line the AX Series in its feature text.

Signa1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

AX5140Q1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: Model AX5140Q.

300443-01-00-1011Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026US page SKU 300443-01-00-101.

GTIN / EAN

8881430236321Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Spec table: UPC 888143023632. The Hisense US shop barcode for the AX5140Q is the same.

7471921358298Retailer pagecreativeaudio.net/signa-s4Read 13 October 2026UPC 747192135829 listed with part number 300443-01-00-101. Electronic Express lists the same UPC.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

20 March 20253Press releasefiles.hisense-usa.com/download/f2767dd6ec1b3ee6Read 14 October 2026Hisense USA press release dated March 20, 2025 introduces the AX5140Q Sound System.

Not available

Status

Available5Maker product pageshop.hisense-usa.com/products/hisense-ax5140q-5-1-4-channel-soundbar-with-wireless-subwoofer-and-rear-speakers-hi-concerto-dolby-atmos-and-dts-x-blackRead 14 October 2026Hisense US shop lists the AX5140Q with a price of $399.99. The shop spec table on that page is for a 4.1.2 channel system with UPC 888143020402 and model HTSATURN. It does not match the AX5140Q and is not used.

Available1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026US maker page offers the black model for purchase. The current page price is $449, which is not the launch price.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$3993Press releasefiles.hisense-usa.com/download/f2767dd6ec1b3ee6Read 14 October 2026Release: available starting this summer for $399. US price, sales tax not stated.

$3995Press articlehometheaterforum.com/polk-audio-introduces-signa-s4-dolby-atmos-sound-bar-systemRead 13 October 2026Launch article of 2021-12-20 gives the system price as $399 and says it is available now from Polk Audio. The Tom's Guide review also gives $399. US MSRP excluding sales tax is not stated.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

€3496Press articleareadvd.de/news/polk-audio-stellt-neues-dolby-atmos-soundbar-system-vorRead 13 October 2026German launch report of 2021-12-16: available now for 349 euros recommended retail price (UVP) from PolkAudio.com and dealers. VAT treatment is not stated and a German UVP normally includes VAT.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, CA1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026CA from this Canadian maker page. US from the US press release and the US shop.3Press releasefiles.hisense-usa.com/download/f2767dd6ec1b3ee6Read 14 October 2026Release is for the US market.

US, EU1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026US page lists the US SKU and US pricing. The EU market comes from the German launch report.6Press articleareadvd.de/news/polk-audio-stellt-neues-dolby-atmos-soundbar-system-vorRead 13 October 2026

ColoursiThe maker's own colour names

Black5Maker product pageshop.hisense-usa.com/products/hisense-ax5140q-5-1-4-channel-soundbar-with-wireless-subwoofer-and-rear-speakers-hi-concerto-dolby-atmos-and-dts-x-blackRead 14 October 2026Product title ends with Black.

Black1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026

Links

Not compared

Product page

www.hisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwoofer1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026

www.polkaudio.com/en-us/product/sound-bars/signa-s4/300443.html1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s4/300443.htmlRead 13 October 2026

Spec sheet

Not available

www.polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdf2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw0ff899e4/downloads/signa-s4-infosheet-en.pdfRead 13 October 2026

Manual

media.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdf2Owner's manualmedia.flixcar.com/webp/synd-asset/Hisense-370568162-GetDigitDoc.aspx-sifra-20016768-jezik-en-tipVsebine-1-docName-hisenseplusax5140qplus.pdfRead 14 October 2026AX5140Q user manual, 20 pages, English, file mark AX5140Q-IFU-EN-V1.5. The file is a Hisense manual syndicated on a content host.

www.polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdf3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw3319e610/downloads/signa-s4-owners-manual-en.pdfRead 13 October 2026

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year1Maker product pagehisense-canada.com/en/home-entertainment/soundbars/all-soundbars/AX5140Q_hisense-5-1-4-ch-soundbar-with-wireless-rear-speakers-and-subwooferRead 14 October 2026Canada: spec table Warranty 1 Year.

Not available

Both are also in the API. Back to all soundbars.