Short answer: the Rythmik F12 for the higher ranking, the RSL (Rogersound Labs) Speedwoofer 10S MKII for the lower price. The Rythmik F12 ranks #51 of 137 subwoofers at $1120. The RSL (Rogersound Labs) Speedwoofer 10S MKII ranks #66 at $450, $670 cheaper.
On the RSL (Rogersound Labs) Speedwoofer 10S MKII side: 10-inch ported with 400W RMS (1020W peak) XDR amplifier.
The case for the Rythmik F12: Sealed 12-inch servo with 370W RMS offers excellent value.
Buy the RSL (Rogersound Labs) Speedwoofer 10S MKII if the price matters more than the ranking. Buy the Rythmik F12 if the ranking matters more than the price.
Specifications Side By Side
| RSL (Rogersound Labs) Speedwoofer 10S MKII | Rythmik F12 | |
|---|---|---|
| Price | $450 | $1,120 |
| Ranked | #66 of 137 in Medium Powered Home Subwoofers (30-75 lbs) | #51 of 137 in Medium Powered Home Subwoofers (30-75 lbs) |
| Enclosure | ported, rear | sealed |
| Output SPL at 15 Hz | 89.0 dB | 95.0 dB |
| Output SPL at 20 Hz | 100.0 dB | 97.6 dB |
| Output SPL at 25 Hz | 105.0 dB | 100.7 dB |
| Output SPL at 31.5 Hz | 107.7 dB | 107.5 dB |
| Output SPL at 40 Hz | 110.3 dB | 112.3 dB |
| Output SPL at 50 Hz | 112.9 dB | 113.1 dB |
| Output SPL at 63 Hz | 113.0 dB | 114.4 dB |
| Output SPL at 80 Hz | 112.1 dB | 113.6 dB |
| Output SPL at 100 Hz | 111.4 dB | - |
| Output SPL at 125 Hz | 110.7 dB | - |
| CEA-2010-A Average (40-80Hz) | 112.1 dB | 113.3 dB |
| Dimensions | 15.5"H x 15.0"W x 15.75"D (393.7 x 381.0 x 400.0 mm) | 15.75"H x 15.75"W x 17.0"D (400.0 x 400.0 x 431.8 mm) |
| Weight | 40.6 lbs / 18.4 kg | 75 lbs / 34.0 kg |
| Warranty | ? | 5/3 |
| Cabinet Color | black, white | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Brent Butterworth |
| Power Output (Watts) | 400W RMS | 370W RMS |
| Frequency Response | 21-200Hz | 14Hz extension |
| Drivers | 10" (254mm) driver | 12" (305mm) driver |
The Two Speakers In Full
RSL (Rogersound Labs) Speedwoofer 10S MKII: $450
Pros: 10-inch ported with 400W RMS (1020W peak) XDR amplifier. DSP with dual modes (LFE mode for 22Hz extension, Music mode for tight response). Quick tight musical bass at excellent $449 price. Wireless receiver built-in.
| CEA-2010-A Average (40-80Hz) | 112.1 dB |
|---|---|
| Cabinet Color | black, white |
| Country | United States |
| Dimensions | 15.5"H x 15.0"W x 15.75"D (393.7 x 381.0 x 400.0 mm) |
| Drivers | 10" (254mm) driver |
| Enclosure | ported, rear |
| Frequency Response | 21-200Hz |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 89.0 dB |
| Output SPL at 20 Hz | 100.0 dB |
| Output SPL at 25 Hz | 105.0 dB |
| Output SPL at 31.5 Hz | 107.7 dB |
| Output SPL at 40 Hz | 110.3 dB |
| Output SPL at 50 Hz | 112.9 dB |
| Output SPL at 63 Hz | 113.0 dB |
| Output SPL at 80 Hz | 112.1 dB |
| Output SPL at 100 Hz | 111.4 dB |
| Output SPL at 125 Hz | 110.7 dB |
| Power Output (Watts) | 400W RMS |
| Warranty | ? |
| Weight | 40.6 lbs / 18.4 kg |
- Head-to-Head Comparisons
- RSL (Rogersound Labs) Speedwoofer 10S MKII vs SVS SB-2000
- RSL (Rogersound Labs) Speedwoofer 10S MKII vs Klipsch R-121SW
- RSL (Rogersound Labs) Speedwoofer 10S MKII vs Monoprice Monolith M-10 V2
- RSL (Rogersound Labs) Speedwoofer 10S MKII vs Monoprice SW-12
- RSL (Rogersound Labs) Speedwoofer 10S MKII vs Monoprice SSW-10
- RSL (Rogersound Labs) Speedwoofer 10S MKII vs SVS PB-1000 PRO
- RSL (Rogersound Labs) Speedwoofer 10S MKII vs SVS SB-3000
- RSL (Rogersound Labs) Speedwoofer 10S MKII vs Monoprice SW-15
- See all 12 comparisons
- 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
- 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.