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Polk Audio Signa S2

Polk AudioSoundbar

Signa S2

Released October 2018.5Press articleareadvd.de/tests/special-polk-audio-praesentiert-flache-soundbar-signa-s2Read 16 October 2026Article of 2018-10-27 says the S2 is expected from the end of October 2018. Xataka Home reported it on 2018-09-08 as due at dealers in the fall. Last checked 16 October 2026.

System channel configuration
2.1
Dolby Atmos
No
Separate subwoofer included
Yes
HDMI eARC
No

53 of 98 fields known.

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At a glance

Ports

  • HDMI
  • Optical
  • 3.5 mm audio
  • AC power

All specs

SourceCalculated

Audio system

System channel configuration
2.17Retailer pagegreentoe.com/product/Polk_Audio_Polk_Audio_Signa_S2_2-1-Channel_Soundbar_System_AM6214-ARead 16 October 2026Retailer table lists channel configuration 2.1-channel for model AM6214-A. Polk states no channel layout. The layout fits one bar array and one subwoofer.
Physical drivers in the package
52Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Four drivers in the bar plus one woofer in the subwoofer, from the driver list.
Physical drivers in the bar
42Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026
Up-firing drivers in the package
02Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026No driver is described as up-firing. The page lists the bar drivers as a front array.
Driver layout
ComponentDriver typeCountDiameter (mm)Orientation
SoundbarFull-range oval driver, 32 × 112 mm2Not availableFront array
SoundbarTweeter225Not available
SubwooferWoofer1133.35Not available
Source2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Two 1.25 x 4.4 in (32 x 112 mm) full-range oval drivers and two 1 in (25 mm) tweeters in the bar. One 5.25 in woofer in the subwoofer. The product page calls the oval drivers midrange and lists them as the front array.
Separate subwoofer included
Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026
Included subwoofer connection
Wireless2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026
Included subwoofer driver diameter
133.35mm2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026The infosheet says 5.25 in (165 mm). The product page says 5.25 in / 13.34 cm and the retailer table says 5.25 in / 13.34 cm. 5.25 in is exactly 133.35 mm. The 165 mm figure matches no 5.25 in driver and is not used.
Rear speakers included
02Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026The box holds a sound bar and a subwoofer only. No rear speakers are listed.
Included rear speaker connection
Not available
Detachable rear speakers
No2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026
Compatible optional subwoofers
Not available
Compatible optional rear speakers
Not available
Total RMS audio output power
Not available
Total peak audio output power
Not available
Published frequency response lower limit
45Hz2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Infosheet gives frequency response 45 Hz to 20 kHz for the system. Tolerance and test conditions are not published.
Published frequency response upper limit
20kHz2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026

Audio formats

Dolby Atmos
No1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026The page describes Dolby Digital 5.1 decoding and says nothing about Dolby Atmos. Reviews and the HomeTheaterReview summary also say the bar has no Atmos.
DTS:X
No4Press articleareadvd.de/news/polk-audio-praesentiert-neue-tv-soundbar-signa-s2Read 16 October 2026The sister article of 2018-10-27 says the bar has an integrated Dolby Digital decoder and supports neither Dolby Digital Plus nor DTS. No DTS:X is claimed in any source.
Supported audio formats
Dolby Digital1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026Page: Dolby Digital 5.1 decoding for virtual surround. The comparison table says Dolby Digital and DTS virtual surround. No DTS decoding is stated in a maker document.
Audio formats by connection
ConnectionFormatMax input channels
HDMI ARCDolby Digital6
OpticalDolby Digital6
Source3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026Quick start guide: HDMI (ARC) and optical support Dolby 5.1 decoding. Six channels counts the 5.1 layout including LFE. The guide lists no other connection-specific format limits.
Music file formats
Not available
Max wired audio sample rate
Not available
Max music file sample rate
Not available
Max wired audio bit depth
Not available
Max music file bit depth
Not available

Connectivity

Ports on the bar
ConnectorCountRole
HDMI1TV connection with ARC
Optical1Digital audio input
3.5 mm audio1Analog AUX audio input
AC power1Soundbar power input
Source3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026Back panel diagram labels TV (Optical), AUX, TV (HDMI ARC) and Power. The Polk page lists the same inputs. A separate subwoofer power cord is in the box.
HDMI ARC
Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Inputs list HDMI ARC. The infosheet text describes a built-in HDMI Audio Return Channel and lists no eARC.
HDMI eARC
No3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026Back panel and connection steps name the HDMI port TV (HDMI ARC). No eARC is stated in any maker document.
HDMI-CEC
Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Infosheet: volume control from the TV remote requires the bar on the TV HDMI ARC port and CEC enabled on the TV.
HDMI video passthrough
No3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026The back panel has one HDMI connector, the TV ARC output. There is no HDMI source input.
Video passthrough modes
Not available
HDR passthrough formats
Not available
VRR passthrough
Not available
ALLM passthrough
Not available
HDCP version
2.21Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026Key Technologies text: HDMI ARC for a single cable connection to the TV, supports 4K with HDCP 2.2, Dolby Vision and HDR10. The bar has one HDMI connector, the TV ARC output, and no HDMI source input.
Bluetooth audio input
Yes2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026
Bluetooth version
Not available
Bluetooth audio codecs
Not available
Wi-Fi
Not available
Wi-Fi standard
Not available
Wi-Fi bands
Not available
Built-in Ethernet speed
Not available

Streaming and control

Streaming protocols
Not available
Voice assistants
Not available
Built-in microphone
Not available
Microphone mute control
Not available
Companion apps
Not available
Companion app platforms
Not available
Multiroom audio
Not available
Remote included
Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026

Sound processing

Sound modes
Movie, Music, Night1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026Page features: movie and music modes, one button preset EQ settings, and a Night Mode.
Automatic room calibration
Not available
Room calibration system
Not available
Dialogue enhancement
Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026
Night mode
Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026
Equalizer controls
Bass Control3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026Optimizing your listening experience: bass control raises or lowers the bass volume. The remote has bass up and down buttons.
TV speaker integration
Not available

Power

Published operating power
40W3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026Specifications for the sound bar: power consumption 40 W. The subwoofer is listed separately at 40 W.
Published standby power
0.3W3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026Sound bar standby mode 0.3 W. Subwoofer standby 0.26 W.
Published networked standby power
1.6W3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026Sound bar Bluetooth standby 1.6 W. The bar has no other network connection, so Bluetooth standby is the only networked standby figure. Subwoofer Bluetooth standby is 1.1 W.
Power supply
Sound bar: AC 100 to 230 V, 50/60 Hz. The wireless subwoofer has its own power cord, AC 100 to 230 V, 50/60 Hz.3Owner's manualpolkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dwfc4e9ad6/downloads/signa-s2-quickstartguide-en.pdfRead 16 October 2026Specifications: sound bar AC 100 to 230 V, 50/60 Hz and subwoofer AC 100 to 230 V, 50/60 Hz.
Detachable rear battery life
Not available
Detachable rear charge time
Not available

Measured

We could not find any of these 8 fields. Show them
Low-frequency extension (measured)
Not available
High-frequency extension (measured)
Not available
Max sound pressure (measured)
Not available
Frequency response deviation (measured)
Not available
Measured latency
Not available
Operating power (measured)
Not available
Standby power (measured)
Not available
Soundbar weight (measured)
Not available

Dimensions and weight

Front and side, drawn to scale.

Soundbar dimensions
Width900Height55Depth84mm(35.4 × 2.2 × 3.3 in)2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Infosheet gives the bar as W x H x D 90 x 5.5 x 8.4 cm. The product page gives 899.9 x 54.6 x 81.8 mm (35.43 x 2.15 x 3.22 in). The infosheet is used.
Soundbar weight
1,800g(4 lb)2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Infosheet gives the bar as 1.8 kg.
Component dimensions and weight
ComponentWidth (mm)Height (mm)Depth (mm)Weight (g)
Subwoofer1713413125,200
Source2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Infosheet gives the subwoofer as W x H x D 17.1 x 34.1 x 31.2 cm and 5.2 kg. The product page gives 170.7 x 340.4 x 309.9 mm.
Package dimensions
Width975.4Height241.3Depth482.6mm(38.4 × 9.5 × 19 in)7Retailer pagegreentoe.com/product/Polk_Audio_Polk_Audio_Signa_S2_2-1-Channel_Soundbar_System_AM6214-ARead 16 October 2026Box dimensions (LxWxH) 38.4 x 19 x 9.5 in, mapped to width, depth and height in that order. Inches converted exactly and rounded to 0.1 mm.
Package weight
9,072g(20 lb)7Retailer pagegreentoe.com/product/Polk_Audio_Polk_Audio_Signa_S2_2-1-Channel_Soundbar_System_AM6214-ARead 16 October 2026Package weight 20 lb, converted exactly and rounded to 1 g.
Wall mountable
Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026Specifications table lists mounting type keyhole hanger.2Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026Infosheet: wall mountable yes.

In the box

In the box
Sound bar, Subwoofer, Remote control, AAA battery, 5 ft (1.5 m) HDMI cable, 5 ft (1.5 m) optical cable, Sound bar power cord, Subwoofer power cord, Spacers, Quick start guide1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026Specifications table: 2 pieces, 1 sound bar and 1 subwoofer, with a 5 ft HDMI cable, a 5 ft optical cable, a quick start guide and an IR remote control. The quick start guide adds the AAA remote battery, both power cords and spacers.
Wall mount hardware included
Not available
HDMI cable included
Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026
Optical cable included
Yes1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026

General

Series
Signa1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026
Model numbers
112625-01-00-101, AM6214-A, AM6215-A1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026US page SKU and MPN 112625-01-00-101. The infosheet lists AM6214-A and the international SKU AM6215-A for the same product.
GTIN / EAN
747192131104, 07471921311112Maker spec sheet (PDF)polkaudio.com/on/demandware.static/-/Library-Sites-polk_northamerica_shared/default/dw53444bb5/downloads/signa-s2-infosheet-en.pdfRead 16 October 2026UPC 747192131104 for AM6214-A. The international SKU AM6215-A has UPC 0747192131111.
Announced
September 20186Press articlexatakahome.com/altavoces/polk-audio-renueva-su-gama-barras-sonido-compacta-signa-s2/ampRead 16 October 2026Spanish article dated 2018-09-08 reports the new Signa S2 as announced, at about 200 US dollars and arriving at dealers in the fall. The exact US price is not stated, so no US launch price is stored.
Status
Available1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026US maker page offers the black model in stock at $249. That price is not the launch price.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
€2494Press articleareadvd.de/news/polk-audio-praesentiert-neue-tv-soundbar-signa-s2Read 16 October 2026German article of 2018-10-24: Polk announces a new TV sound bar with wireless subwoofer at 249 euros recommended retail price (UVP). VAT treatment is not stated and a German UVP normally includes VAT.
Markets
US, EU1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026US page lists the US SKU. The EU market comes from the German launch report.4Press articleareadvd.de/news/polk-audio-praesentiert-neue-tv-soundbar-signa-s2Read 16 October 2026German launch report names the German market.
Colours
Black1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026

Warranty

Manufacturer warranty (source market)
1year1Maker product pagepolkaudio.com/en-us/product/sound-bars/signa-s2/112625.htmlRead 16 October 2026Specifications table: electronics warranty 1 year and drivers warranty 2 years for the US. The highlights text says 1 year amplifiers and 3 years speakers, and the infosheet says drivers 3 years. Only the electronics term is stored.

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Sources

We read 7 sources for this soundbar. The numbers match the markers in the sheet.

  1. Read 16 October 2026Backs 18 fields
  2. Read 16 October 2026Backs 20 fields
  3. Read 16 October 2026Backs 10 fields
  4. Read 16 October 2026Backs 3 fields
  5. Read 16 October 2026Backs 1 field
  6. Read 16 October 2026Backs 1 field
  7. Read 16 October 2026Backs 3 fields

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