Short answer: the Sony Bravia Theater Sub 8. It ranks #32 of 70 subwoofers by sound quality, rated 3.4/5, at $348. The Sony Bravia Theater Sub 7 ranks #61, rated 2.9/5, at $278, $70 cheaper, not enough of a saving to outweigh the sound-quality gap.
The Sony Bravia Theater Sub 8 is the better-sounding choice. The middle wireless subwoofer for Sony’s BRAVIA Theater soundbars, with a 200mm aluminum driver and a 300W amplifier in a 170mm wide cabinet that can stand upright or lie flat. Watch for: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured Sub 9 (112.8dB in the 40 to 80Hz CEA-2010 bands), and it should fall short of that model.
What the Sony Bravia Theater Sub 7 does well: A slim wireless subwoofer for Sony’s BRAVIA Theater soundbars, only 134mm deep so it can stand upright or lie flat under a sofa. Watch for: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured Sub 9 (112.8dB in the 40 to 80Hz CEA-2010 bands).
Buy the Sony Bravia Theater Sub 8. It is rated higher for sound quality, and the $70 you would save on the Sony Bravia Theater Sub 7 does not close the gap.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: Sony Bravia Theater Sub 8 3.0 to 3.7; Sony Bravia Theater Sub 7 2.5 to 3.2). Treat this verdict as provisional.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| Sony Bravia Theater Sub 8 | Sony Bravia Theater Sub 7 | |
|---|---|---|
| Price | $348.00 | $278.00 |
| Ranked | #32 of 70 in Small Home Subwoofers (Under 30 lbs) Estimated | #61 of 70 in Small Home Subwoofers (Under 30 lbs) Estimated |
| Enclosure | ported | ported |
| Drivers | 7.9” (200mm) aluminum driver | 5.1” (130mm) driver |
| Amplifier Power | 300W | 100W |
| Dimensions | 15.7”H x 6.7”W x 15.4”D (400 x 170 x 390 mm) | 14.1”H x 13.9”W x 5.3”D (358 x 352 x 134 mm) |
| Weight | 26.9 lbs (12.2 kg) | 13.7 lbs (6.2 kg) |
Related Speaker Comparisons
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- Sony Bravia Theater Sub 9 vs Sony Bravia Theater Sub 8
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- BG Radia BGX-S6B vs Dayton Audio MKSX4
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Prices on this page were last checked October 7, 2026 at 9:25 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Sony Bravia Theater Sub 8: $348.00 Estimated Amazon eBay
Same family: the Sony Bravia Theater Sub 7 (smaller subwoofer, ranked lower, estimated 2.9/5) and the Sony Bravia Theater Sub 9 (larger subwoofer, rated 3.7/5).
Pros: The middle wireless subwoofer for Sony’s BRAVIA Theater soundbars, with a 200mm aluminum driver and a 300W amplifier in a 170mm wide cabinet that can stand upright or lie flat. Two can be paired for more even bass.
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured Sub 9 (112.8dB in the 40 to 80Hz CEA-2010 bands), and it should fall short of that model. It only works with compatible Sony soundbars.
Full Sony Bravia Theater Sub 8 review and specifications →
| Amplifier Power | 300W |
|---|---|
| Dimensions | 15.7”H x 6.7”W x 15.4”D (400 x 170 x 390 mm) |
| Drivers | 7.9” (200mm) aluminum driver |
| Enclosure | ported |
| Weight | 26.9 lbs (12.2 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Sony Bravia Theater Sub 7: $278.00 Estimated Amazon eBay
Same family: the Sony Bravia Theater Sub 8 (larger subwoofer, ranked higher, estimated 3.4/5) and the Sony Bravia Theater Sub 9 (larger subwoofer, rated 3.7/5).
Pros: A slim wireless subwoofer for Sony’s BRAVIA Theater soundbars, only 134mm deep so it can stand upright or lie flat under a sofa. It uses a 130mm driver with a 100W S-Master amplifier, and two can be paired.
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured Sub 9 (112.8dB in the 40 to 80Hz CEA-2010 bands). A 130mm driver is far smaller than a normal subwoofer’s, so deep bass and output are limited, and it only works with compatible Sony soundbars.
Full Sony Bravia Theater Sub 7 review and specifications →
| Amplifier Power | 100W |
|---|---|
| Dimensions | 14.1”H x 13.9”W x 5.3”D (358 x 352 x 134 mm) |
| Drivers | 5.1” (130mm) driver |
| Enclosure | ported |
| Weight | 13.7 lbs (6.2 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons