Short answer: the JL Audio Dominion d108. It ranks #28 of 42 subwoofers at $1100; the Rythmik F12 ranks #51 and costs $1120, so there is not much of a tradeoff to weigh.
The case for the Rythmik F12: Sealed 12-inch servo with 370W RMS offers excellent value.
Buy the JL Audio Dominion d108 if the ranking matters more than the price. Buy the Rythmik F12 if the price matters more than the ranking.
Specifications Side By Side
| JL Audio Dominion d108 | Rythmik F12 | |
|---|---|---|
| Price | $1,100 | $1,120 |
| Ranked | #28 of 42 in Small Powered Home Subwoofers (Under 30 lbs) | #51 of 137 in Medium Powered Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 20 Hz | 79.7 dB | 97.6 dB |
| Output SPL at 25 Hz | 85.8 dB | 100.7 dB |
| Output SPL at 31.5 Hz | 91.5 dB | 107.5 dB |
| Output SPL at 40 Hz | 98.4 dB | 112.3 dB |
| Output SPL at 50 Hz | 102.9 dB | 113.1 dB |
| Output SPL at 63 Hz | 105.6 dB | 114.4 dB |
| Output SPL at 80 Hz | 105.0 dB | 113.6 dB |
| Output SPL at 100 Hz | 103.9 dB | - |
| CEA-2010-A Average (40-80Hz) | 103.0 dB | 113.3 dB |
| Dimensions | 11.37"H x 10.0"W x 13.23"D (288.8 x 254.0 x 336.0 mm) | 15.75"H x 15.75"W x 17.0"D (400.0 x 400.0 x 431.8 mm) |
| Weight | 26.5 lbs / 12.0 kg | 75 lbs / 34.0 kg |
| Warranty | 3 | 5/3 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | ErinsAudioCorner | Brent Butterworth |
| Drivers | 8" (203mm) driver | 12" (305mm) driver |
| Output SPL at 15 Hz | - | 95.0 dB |
| Power Output (Watts) | - | 370W RMS |
| Frequency Response | - | 14Hz extension |
The Two Speakers In Full
JL Audio Dominion d108: $1,100
Notes: Ash colour.
| CEA-2010-A Average (40-80Hz) | 103.0 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 11.37"H x 10.0"W x 13.23"D (288.8 x 254.0 x 336.0 mm) |
| Drivers | 8" (203mm) driver |
| Enclosure | sealed |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 20 Hz | 79.7 dB |
| Output SPL at 25 Hz | 85.8 dB |
| Output SPL at 31.5 Hz | 91.5 dB |
| Output SPL at 40 Hz | 98.4 dB |
| Output SPL at 50 Hz | 102.9 dB |
| Output SPL at 63 Hz | 105.6 dB |
| Output SPL at 80 Hz | 105.0 dB |
| Output SPL at 100 Hz | 103.9 dB |
| Warranty | 3 |
| Weight | 26.5 lbs / 12.0 kg |
- Links
Rythmik F12: $1,120
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.
| CEA-2010-A Average (40-80Hz) | 113.3 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 15.75"H x 15.75"W x 17.0"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 15 Hz | 95.0 dB |
| Output SPL at 20 Hz | 97.6 dB |
| Output SPL at 25 Hz | 100.7 dB |
| Output SPL at 31.5 Hz | 107.5 dB |
| Output SPL at 40 Hz | 112.3 dB |
| Output SPL at 50 Hz | 113.1 dB |
| Output SPL at 63 Hz | 114.4 dB |
| Output SPL at 80 Hz | 113.6 dB |
| Power Output (Watts) | 370W RMS |
| Warranty | 5/3 |
| Weight | 75 lbs / 34.0 kg |
- Head-to-Head Comparisons
- Rythmik F12 vs RSL (Rogersound Labs) Speedwoofer 10S MKII
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- Rythmik F12 vs Monoprice SW-12
- Rythmik F12 vs Klipsch R-121SW
- Rythmik F12 vs SVS PB-1000 PRO
- Rythmik F12 vs Monoprice Monolith M-10 V2
- Rythmik F12 vs SVS SB-3000
- Rythmik F12 vs Monoprice SW-15
- See all 14 comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.