Short answer: the Power Sound Audio (PSA) XV15 for better sound quality, the Rythmik F12 for the lower price. The Power Sound Audio (PSA) XV15 ranks #9 of 145 subwoofers at $1995. The Rythmik F12 ranks #20 at $1439, $556 cheaper.
What the Rythmik F12 offers: Sealed 12-inch servo with 370W RMS offers excellent value. Very musical and can disappear in small rooms. Digs to 14Hz with excellent build quality and well-braced cabinet. Watch for: No detailed measurement caveats are currently recorded.
What the Power Sound Audio (PSA) XV15 offers: 15-inch ported downfirer with 500W delivers crisp detailed bass digging deep into lowest frequencies. 119.5dB output plays loud clean at 115dB peaks with no distortion. USA-built with durable finish. Watch for: No detailed measurement caveats are currently recorded.
Buy the Rythmik F12 if the price matters more than sound quality. Buy the Power Sound Audio (PSA) XV15 if sound quality matters more than the price.
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| Rythmik F12 | Power Sound Audio (PSA) XV15 | |
|---|---|---|
| Price | $1,120 | $1995 |
| Ranked | #20 of 145 in Medium Home Subwoofers (30-75 lbs) | #9 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, bottom |
| Output SPL at 20 Hz | 103.6 dB | 110.2 dB |
| Output SPL at 25 Hz | 106.7 dB | 110.2 dB |
| Output SPL at 31.5 Hz | 113.5 dB | 110.2 dB |
| Output SPL at 40 Hz | 118.3 dB | 119.5 dB |
| Output SPL at 50 Hz | 119.1 dB | 119.5 dB |
| Output SPL at 63 Hz | 120.4 dB | 119.5 dB |
| Output SPL at 80 Hz | 119.6 dB | - |
| CEA-2010-A Average (40-80Hz) | 119.3 dB | 119.5 dB (avg of 3/4 bands) |
| Dimensions | 15.7"H x 15.7"W x 17"D (400.0 x 400.0 x 431.8 mm) | 23"H x 17"W x 22"D (584.2 x 431.8 x 558.8 mm) |
| Weight | 75 lbs (34.0 kg) | 75 lbs (34.0 kg) |
| Warranty | 5/3 | 5 |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Amplifier Power | 370W RMS | 500W RMS / 1000W peak |
| Frequency Response | 14Hz extension | 21-200Hz |
| Drivers | 12" (305mm) driver | 15" (381mm) driver |
| Output SPL at 16 Hz | 101.0 dB | - |
| Inputs | - | Stereo line level and speaker level |
Related Speaker Comparisons
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- JTR Speakers Captivator 212PRO vs Power Sound Audio (PSA) XV15
- MartinLogan Dynamo 1600X vs Power Sound Audio (PSA) XV15
- HSU Research ULS-15 MK2 vs Power Sound Audio (PSA) XV15
- Monoprice SW-12 vs Power Sound Audio (PSA) XV15
- Paradigm Defiance X12 vs Power Sound Audio (PSA) XV15
Prices on this page were last checked September 14, 2026 at 1:47 AM 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
Rythmik F12: $1,120 Rythmik Audio eBay
Pros: Sealed 12-inch servo with 370W RMS offers excellent value. Very musical and can disappear in small rooms. Digs to 14Hz with excellent build quality and well-braced cabinet.
Full Rythmik F12 review and specifications →
| Amplifier Power | 370W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 119.3 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 15.7"H x 15.7"W x 17"D (400.0 x 400.0 x 431.8 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | sealed |
| Frequency Response | 14Hz extension |
| Measurement Source | Brent Butterworth |
| Output SPL at 16 Hz | 101.0 dB |
| Output SPL at 20 Hz | 103.6 dB |
| Output SPL at 25 Hz | 106.7 dB |
| Output SPL at 31.5 Hz | 113.5 dB |
| Output SPL at 40 Hz | 118.3 dB |
| Output SPL at 50 Hz | 119.1 dB |
| Output SPL at 63 Hz | 120.4 dB |
| Output SPL at 80 Hz | 119.6 dB |
| Warranty | 5/3 |
| Weight | 75 lbs (34.0 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
Power Sound Audio (PSA) XV15: $1995 eBay
Pros: 15-inch ported downfirer with 500W delivers crisp detailed bass digging deep into lowest frequencies. 119.5dB output plays loud clean at 115dB peaks with no distortion. USA-built with durable finish.
Full Power Sound Audio (PSA) XV15 review and specifications →
| Amplifier Power | 500W RMS / 1000W peak |
|---|---|
| CEA-2010-A Average (40-80Hz) | 119.5 dB (avg of 3/4 bands) |
| Country | United States |
| Dimensions | 23"H x 17"W x 22"D (584.2 x 431.8 x 558.8 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, bottom |
| Frequency Response | 21-200Hz |
| Inputs | Stereo line level and speaker level |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 110.2 dB |
| Output SPL at 25 Hz | 110.2 dB |
| Output SPL at 31.5 Hz | 110.2 dB |
| Output SPL at 40 Hz | 119.5 dB |
| Output SPL at 50 Hz | 119.5 dB |
| Output SPL at 63 Hz | 119.5 dB |
| Warranty | 5 |
| Weight | 75 lbs (34.0 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
- Power Sound Audio (PSA) XV15 vs Paradigm Defiance X12
- Power Sound Audio (PSA) XV15 vs Power Sound Audio (PSA) XV15-BASE
- Power Sound Audio (PSA) XV15 vs Monoprice SW-15
- Power Sound Audio (PSA) XV15 vs Monoprice SW-12
- Power Sound Audio (PSA) XV15 vs SVS SB-3000
- Power Sound Audio (PSA) XV15 vs HSU Research ULS-15 MK2
- Power Sound Audio (PSA) XV15 vs MartinLogan Dynamo 1600X
- Power Sound Audio (PSA) XV15 vs JTR Speakers Captivator 212PRO
- See all 12 comparisons