Soundbars / Compare
JBL Bar 2.1 Deep Bass (MK2) vs Polk Audio Signa S4
Product A: JBL
51 of 98 known
Change JBL Bar 2.1 Deep Bass (MK2)
Product B: Polk Audio
50 of 98 known
Change Polk Audio Signa S4
Compare the JBL Bar 2.1 Deep Bass (MK2) with
42 of 90 fields differ
- 25 different values
- 17 known for one only
- 12 the same
- 36 missing for both
Biggest differences
Each bar uses the scale of all 69 soundbars.
- Standby powerLower is betterA: 0.5WB: 1.5WJBL is 1 W lower.
Weight
0 to 30,000 g
Soundbar weight
A2,140g
B2,900g
Package weight
A10,320g
B9,584g
All 98 fields
Every value links to where we found it.


Audio system
10 of 17 differ
System channel configuration
Physical drivers in the package
Physical drivers in the bar
Up-firing drivers in the package
Not available
Driver layout
AJBL Bar 2.1 Deep Bass (MK2)
| Component | Driver type | Count | Diameter (mm) |
|---|---|---|---|
| Soundbar | Race-track driver | 4 | Not available |
| Soundbar | Tweeter | 2 | 25.4 |
| Subwoofer | Woofer | 1 | 165.1 |
Source1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026Transducer line. Race-track driver size is not published. Tweeter 1 inch is 25.4 mm and the subwoofer 6.5 inch is 165.1 mm, converted exactly from the published inch sizes.2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdfRead 23 October 2026Technical specifications: transducer 4 race-track drivers and 2 x 1 inch tweeter (soundbar), 6.5 inch (subwoofer).
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 |
Separate subwoofer included
Included subwoofer connection
Included subwoofer driver diameter
Rear speakers included
Included rear speaker connection
Not available
Not available
Detachable rear speakers
Not available
Compatible optional subwoofers
Not available
Not available
Compatible optional rear speakers
Not available
Not available
Total RMS audio output power
Not available
Not available
Total peak audio output power
300W1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026Total speaker power output (Max. @THD 1%) 300 W. Output power (Max. @THD 1%) 2 x 50 W (soundbar) and 200 W (subwoofer). JBL states no separate RMS rating, so only the maximum is stored.2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdfRead 23 October 2026Technical specifications: total speaker power output (Max. @THD 1%) 300 W, the same as the support page.
Not available
Published frequency response lower limit
40Hz1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026Frequency response 40 Hz to 20 kHz. No tolerance is published.2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdfRead 23 October 2026Audio specification: frequency response 40 Hz to 20 kHz.
Not available
Published frequency response upper limit
20kHz1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026Frequency response 40 Hz to 20 kHz.2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdfRead 23 October 2026Audio specification: frequency response 40 Hz to 20 kHz.
Not available
Audio formats
6 of 9 differ
Dolby Atmos
No4Retailer pageabt.com/JBL-Bar-2.1-Channel-Deep-Bass-MK2-Soundbar-with-Wireless-Subwoofer-JBL2GBAR21DB2BLKAM/p/189911.htmlRead 23 October 2026Specifications: Dolby Atmos No. The Euronics Ireland table, Coolblue and Which? also say no Dolby Atmos.5Retailer pageeuronics.ie/products/jbl-bar-2-1-deep-bass-mk2-soundbar-system-jblbar21dbm2blkukRead 23 October 2026Comparison table: Dolby Atmos No.
DTS:X
Supported audio formats
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 connection
AJBL Bar 2.1 Deep Bass (MK2)
| Connection | Format |
|---|---|
| USB | MP3 |
| USB | WAV |
BPolk Audio Signa S4
| Connection | Format |
|---|---|
| HDMI eARC | Dolby Atmos |
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
Not available
Max music file bit depth
Not available
Not available
Connectivity
6 of 17 differ
Ports on the bar
AJBL Bar 2.1 Deep Bass (MK2)
| Connector | Count | Version | Role |
|---|---|---|---|
| HDMI | 1 | 1.4 | HDMI IN for a digital device, with video passed to the TV |
| HDMI | 1 | 1.4 | HDMI OUT (TV ARC) to the TV |
| Optical | 1 | Not available | Optical digital audio input |
| USB-A | 1 | Not available | Music playback in the US version, service only in other versions, 5 V 0.5 A |
| AC power | 1 | Not available | Soundbar power input |
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 |
HDMI ARC
Yes1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026HDMI Video output (With Audio return channel) 1, HDMI version 1.4. No eARC is stated.3Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw94f8fb2b/pdfs/JBL_SB_Bar%202.1%20(MK2)_OM_EN_V2.pdfRead 23 October 2026Printed page 8 and 9: the soundbar connects to the TV through the HDMI ARC connection, and the soundbar port is HDMI OUT (TV ARC).
HDMI eARC
HDMI-CEC
Yes3Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw94f8fb2b/pdfs/JBL_SB_Bar%202.1%20(MK2)_OM_EN_V2.pdfRead 23 October 2026Printed page 8 and 9: enable HDMI-CEC on the digital device, and the HDMI-CEC section controls volume, mute and power on or standby through the TV remote.6Reviewwhich.co.uk/reviews/sound-bars/jbl-bar-2-1-deep-bass-mk2Read 23 October 2026Which? page: HDMI CEC Yes, HDMI ARC Yes.
HDMI video passthrough
Video passthrough modes
Not available
Not available
HDR passthrough formats
Not available
Not available
VRR passthrough
Not available
Not available
ALLM passthrough
Not available
Not available
HDCP version
Not available
Not available
Bluetooth audio input
Bluetooth version
4.21Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026Bluetooth version 4.2. Profiles A2DP V1.3 and AVRCP V1.5. No codec is stated. Some retailer pages show 5.3, which JBL does not.2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdfRead 23 October 2026Wireless specification: Bluetooth version 4.2.
Bluetooth audio codecs
Not available
Wi-Fi
No4Retailer pageabt.com/JBL-Bar-2.1-Channel-Deep-Bass-MK2-Soundbar-with-Wireless-Subwoofer-JBL2GBAR21DB2BLKAM/p/189911.htmlRead 23 October 2026Specifications: Wi-Fi No. Which? also lists no Wi-Fi.6Reviewwhich.co.uk/reviews/sound-bars/jbl-bar-2-1-deep-bass-mk2Read 23 October 2026Which? page: Wi-Fi No and no smartphone app.
Not available
Wi-Fi standard
Not available
Not available
Wi-Fi bands
Not available
Not available
Built-in Ethernet speed
Not available
Not available
Streaming and control
0 of 8 differ
Streaming protocols
Not available
Not available
Voice assistants
Not available
Not available
Built-in microphone
Not available
Not available
Microphone mute control
Not available
Not available
Companion apps
Not available
Not available
Companion app platforms
Not available
Not available
Multiroom audio
Not available
Not available
Remote included
Sound processing
4 of 7 differ
Sound modes
Automatic room calibration
Not available
Not available
Room calibration system
Not available
Not available
Dialogue enhancement
Not available
Night mode
Not available
Equalizer controls
Subwoofer bass level (low, mid, high)3Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw94f8fb2b/pdfs/JBL_SB_Bar%202.1%20(MK2)_OM_EN_V2.pdfRead 23 October 2026Printed page 11, bass adjustment: the BASS button switches between LOW, MID and HIGH. Audio sync is a separate delay setting.
TV speaker integration
Not available
Not available
Power
3 of 6 differ
Published operating power
Not available
Published standby power
0.5W1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026Soundbar and subwoofer standby power less than 0.5 W. Stored 0.5 is the strict upper bound, not an exact draw.2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdfRead 23 October 2026General specification: soundbar and subwoofer standby power less than 0.5 W.
Published networked standby power
Not available
Not available
Power supply
Internal power supply, 100-240 V AC, 50/60 Hz1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026General specifications: power supply 100 - 240V AC, 50/60 Hz.2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdfRead 23 October 2026General specification: power supply 100 - 240V AC, 50/60 Hz.
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 life
Not available
Not available
Detachable rear charge time
Not available
Not available
Measured
None of 8 known
Low-frequency extension (measured)
Not available
Not available
High-frequency extension (measured)
Not available
Not available
Max sound pressure (measured)
Not available
Not available
Frequency response deviation (measured)
Not available
Not available
Measured latency
Not available
Not available
Operating power (measured)
Not available
Not available
Standby power (measured)
Not available
Not available
Soundbar weight (measured)
Not available
Not available
Dimensions and weight
5 of 6 differ
Soundbar dimensions
Width965Height56Depth85mm(38 × 2.2 × 3.3 in)1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026Dimensions 965 x 56 x 85 mm (W x H x D), soundbar.
Soundbar weight
Component dimensions and weight
AJBL Bar 2.1 Deep Bass (MK2)
| Component | Width (mm) | Height (mm) | Depth (mm) | Weight (g) |
|---|---|---|---|---|
| Subwoofer | 240 | 379 | 240 | 5,610 |
BPolk Audio Signa S4
| Component | Width (mm) | Height (mm) | Depth (mm) | Weight (g) |
|---|---|---|---|---|
| Subwoofer | 200 | 280 | 328 | 4,100 |
Package dimensions
Width1,045Height310Depth405mm(41.1 × 12.2 × 15.9 in)1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026Packaging dimensions 1045 x 310 x 405 mm (W x H x D). The Abt listing gives 21 x 12 x 13 inches, which cannot hold the 965 mm bar and is not used.
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 weight
Wall mountable
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, Remote control with 2 AAA batteries, Power cords (up to 8 depending on region SKU), HDMI cable, Wall-mount bracket kit with screws, Wall-mounting template, Quick start guide, Warranty card, Safety sheet3Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw94f8fb2b/pdfs/JBL_SB_Bar%202.1%20(MK2)_OM_EN_V2.pdfRead 23 October 2026Printed page 4: soundbar, subwoofer, remote control with 2 AAA batteries, power cord (varies by region), HDMI cable, wall-mounting kit, product information and wall-mounting template. The quick start guide, warranty card and safety sheet come from the Abt and Target listings.4Retailer pageabt.com/JBL-Bar-2.1-Channel-Deep-Bass-MK2-Soundbar-with-Wireless-Subwoofer-JBL2GBAR21DB2BLKAM/p/189911.htmlRead 23 October 2026Features and in the box: soundbar, wireless subwoofer, remote control with batteries, power cords (up to 8 depending on region SKU), HDMI cable, wall-mount bracket kit with screws, quick start guide, warranty card and safety sheet.
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 included
Not available
HDMI cable included
Optical cable included
General
4 of 7 differ
Series
Model numbers
JBLBAR21DBM2BLKEP, JBLBAR21DBM2BLKUK, JBL2GBAR21DB2BLKAM4Retailer pageabt.com/JBL-Bar-2.1-Channel-Deep-Bass-MK2-Soundbar-with-Wireless-Subwoofer-JBL2GBAR21DB2BLKAM/p/189911.htmlRead 23 October 2026Abt US model JBL2GBAR21DB2BLKAM for the MK2 soundbar with wireless subwoofer. The EP and UK codes come from the Coolblue and Euronics pages.5Retailer pageeuronics.ie/products/jbl-bar-2-1-deep-bass-mk2-soundbar-system-jblbar21dbm2blkukRead 23 October 2026Euronics Ireland lists product code JBLBAR21DBM2BLKUK for the Bar 2.1 Deep Bass MK2 soundbar system.7Retailer pagecoolblue.de/en/product/905922/jbl-bar-2-1-deep-bass-mk2-black.htmlRead 23 October 2026Coolblue Germany lists manufacturer code JBLBAR21DBM2BLKEP, 2.14 kg and 96.5 x 5.6 x 8.5 cm for the bar, which match JBL. Included by default: manual, remote with batteries, power cord, HDMI cable and wall mount with screws. The page was read in Chrome.
GTIN / EAN
0500363898774Retailer pageabt.com/JBL-Bar-2.1-Channel-Deep-Bass-MK2-Soundbar-with-Wireless-Subwoofer-JBL2GBAR21DB2BLKAM/p/189911.htmlRead 23 October 2026UPC 050036389877. Target lists the same UPC for the Bar 2.1 Deep Bass MK2.8Retailer pagetarget.com/p/jbl-bar-2-1-deep-bass-mk2-bluetooth-soundbar-with-6-5-wireless-subwoofer/-/A-88677524Read 23 October 2026Target US lists UPC 050036389877 for the JBL Bar 2.1 Deep Bass MK2 and the same specifications as the JBL page: 300 W system output, HDMI 1.4 with ARC, Bluetooth 4.2, 1 year limited warranty.
Announced
Not available
Not available
Status
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
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
Colours
Links
Not compared
Product page
support.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.html1Maker product pagesupport.jbl.com/ca/en/speakers/speakers-soundbars/Bar-2-1-Deep-Bass-MK2.htmlRead 23 October 2026JBL Canada support page, read in Chrome. Specification groups expanded with the accordion toggles. The JBL US product page for this model was not found.
Spec sheet
support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdf2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwe2ffd381/pdfs/JBL%20Bar%202.1_%20DEEPBASS_MK2_%20Spec%20Sheet_EN.pdfRead 23 October 2026Two page English spec sheet for BAR 2.1 DEEP BASS (MK2), read in Chrome as a PDF.
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
support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw94f8fb2b/pdfs/JBL_SB_Bar%202.1%20(MK2)_OM_EN_V2.pdf3Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw94f8fb2b/pdfs/JBL_SB_Bar%202.1%20(MK2)_OM_EN_V2.pdfRead 23 October 2026Owner's manual BAR 2.1 DEEP BASS (MK2), 17 PDF pages in English, file JBL_SB_Bar 2.1 (MK2)_OM_EN_V2. Read in Chrome as a PDF, page by page.
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 number
Not available
Not available
Warranty
1 of 1 differ
Both are also in the API. Back to all soundbars.















