Short answer: the Focal Sub Air. It ranks #29 of 73 subwoofers by sound quality, rated 3.4/5, at $1,399. The PSB SubSeries BP7 ranks #43, rated 3.3/5, at $1,249, $150 cheaper, a saving that is not big enough to make up the sound-quality gap.
What the Focal Sub Air does well: Independent CEA-2010 testing records 109.0 dB through 40-80 Hz. The catch: Without a published 20 Hz output result, deep-bass capability is less certain than its midbass figure.
What the PSB SubSeries BP7 does well: A compact sealed subwoofer with two 6.5” woven carbon fiber drivers mounted in opposition, which cancels cabinet vibration, driven by a 350W Class D amplifier. The tradeoff: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured PSB Speakers SubSeries 250 (112.5dB in the 40 to 80Hz CEA-2010 bands).
Buy the Focal Sub Air. It is rated higher for sound quality, and saving $150 with the PSB SubSeries BP7 does not make up for the sound-quality gap.
Worth knowing: the PSB SubSeries BP7 has not been measured yet. Its rating is estimated from related models, with a likely range of 2.9 to 3.6, so treat this verdict as provisional.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Focal Sub Air | PSB SubSeries BP7 | |
|---|---|---|
| Price | $1,399.00 | $1,249.00 |
| Ranked | #29 of 73 in Small Home Subwoofers (Under 30 lbs) | #43 of 73 in Small Home Subwoofers (Under 30 lbs) Estimated |
| Enclosure | ported, side | sealed |
| Output SPL at 31.5 Hz | 91.4 dB | - |
| Output SPL at 40 Hz | 100.0 dB | - |
| Output SPL at 50 Hz | 108.2 dB | - |
| Output SPL at 63 Hz | 113.6 dB | - |
| Output SPL at 80 Hz | 114.3 dB | - |
| CEA-2010-A Average (40-80Hz) | 109.0 dB | - |
| Dimensions | 16.1”H x 14.2”W x 6.3”D (408.9 x 360.7 x 160.0 mm) | 11.4”H x 10.6”W x 10.6”D (290 x 269 x 269 mm) |
| Weight | 17 lbs (7.7 kg) | 26.5 lbs (12 kg) |
| Warranty | 1(or3) | 5/1 |
| Cabinet Color | black | - |
| Country | France | Canada |
| Measurement Source | Brent Butterworth | - |
| Drivers | 8” (203mm) driver | 2 x 6.5” woven carbon fiber drivers (opposed) |
| Amplifier Power | - | 350W Class D |
| Frequency Response | - | 28-150Hz ±3dB (manufacturer specified) |
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Prices on this page were last checked October 11, 2026 at 4:59 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
Focal Sub Air: $1,399.00 Amazon eBay
Pros: Independent CEA-2010 testing records 109.0 dB through 40-80 Hz. The ported, side enclosure with 8” (203mm) driver is intended to add useful bass support without a full-size cabinet.
Cons: Without a published 20 Hz output result, deep-bass capability is less certain than its midbass figure. The 408.9H x 360.7W x 160.0D mm cabinet and 7.7 kg mass still need careful placement and calibration.
Notes: low profile (<8in)
Full Focal Sub Air review and specifications →
| Released | Aug 2022 (4 years ago) |
|---|---|
| CEA-2010-A Average (40-80Hz) | 109.0 dB |
| Cabinet Color | black |
| Country | France |
| Dimensions | 16.1”H x 14.2”W x 6.3”D (408.9 x 360.7 x 160.0 mm) |
| Drivers | 8” (203mm) driver |
| Enclosure | ported, side |
| Measurement Source | Brent Butterworth |
| Output SPL at 31.5 Hz | 91.4 dB |
| Output SPL at 40 Hz | 100.0 dB |
| Output SPL at 50 Hz | 108.2 dB |
| Output SPL at 63 Hz | 113.6 dB |
| Output SPL at 80 Hz | 114.3 dB |
| Warranty | 1(or3) |
| Weight | 17 lbs (7.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
PSB SubSeries BP7: $1,249.00 Estimated Amazon eBay
Same family: the PSB SubSeries BP8 (larger subwoofer, estimated 3.6/5) and the PSB SubSeries BP12 (larger subwoofer, estimated 4.2/5).
Pros: A compact sealed subwoofer with two 6.5” woven carbon fiber drivers mounted in opposition, which cancels cabinet vibration, driven by a 350W Class D amplifier. PSB rates it 28 to 150Hz (±3dB) and 25Hz at -10dB from a 27cm cube.
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured PSB Speakers SubSeries 250 (112.5dB in the 40 to 80Hz CEA-2010 bands). Two 6.5” drivers have limited cone area, so output is modest.
Full PSB SubSeries BP7 review and specifications →
| Released | Oct 2025 (1 year ago) |
|---|---|
| Amplifier Power | 350W Class D |
| Country | Canada |
| Dimensions | 11.4”H x 10.6”W x 10.6”D (290 x 269 x 269 mm) |
| Drivers | 2 x 6.5” woven carbon fiber drivers (opposed) |
| Enclosure | sealed |
| Frequency Response | 28-150Hz ±3dB (manufacturer specified) |
| Warranty | 5/1 |
| Weight | 26.5 lbs (12 kg) |
- Links
- 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