Short answer: the Klipsch SPL-120. It ranks #18 of 145 subwoofers by sound quality at $429.99; the Rythmik F12 ranks #20 and costs $1439, so there is little reason to consider the other one.
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 Klipsch SPL-120 offers: 12-inch ported with 300W delivers room-filling bass hitting nearly 118dB max SPL. Clean accurate response across whole bass register with tight controlled response at high volumes. Wireless connectivity with optional WA-2 accessory. Watch for: No detailed measurement caveats are currently recorded.
Buy the Klipsch SPL-120. It ranks higher for sound quality than the Rythmik F12 and costs less, which settles it without a real tradeoff to make.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Rythmik F12 | Klipsch SPL-120 | |
|---|---|---|
| Price | $1,120 | $429.99 |
| Ranked | #20 of 145 in Medium Home Subwoofers (30-75 lbs) | #18 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 20 Hz | 103.6 dB | 97.9 dB |
| Output SPL at 25 Hz | 106.7 dB | 108.2 dB |
| Output SPL at 31.5 Hz | 113.5 dB | 113.5 dB |
| Output SPL at 40 Hz | 118.3 dB | 116.8 dB |
| Output SPL at 50 Hz | 119.1 dB | 119.8 dB |
| Output SPL at 63 Hz | 120.4 dB | 120.9 dB |
| Output SPL at 80 Hz | 119.6 dB | 121.2 dB |
| CEA-2010-A Average (40-80Hz) | 119.3 dB | 119.7 dB |
| Dimensions | 15.7"H x 15.7"W x 17"D (400.0 x 400.0 x 431.8 mm) | 17.7"H x 14.7"W x 19.9"D (450.8 x 372.9 x 504.7 mm) |
| Weight | 75 lbs (34.0 kg) | 45 lbs (20.4 kg) |
| Warranty | 5/3 | 5/2 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Amplifier Power | 370W RMS | 300W RMS |
| Frequency Response | 14Hz extension | 24-125Hz |
| Drivers | 12" (305mm) driver | 12" (305mm) driver |
| Output SPL at 16 Hz | 101.0 dB | 87.2 dB |
Related Speaker Comparisons
More worthwhile head-to-heads for Klipsch SPL-120:
- MartinLogan Dynamo 1600X vs Klipsch SPL-120
- HSU Research ULS-15 MK2 vs Klipsch SPL-120
- Monoprice SW-12 vs Klipsch SPL-120
- Monoprice SW-15 vs Klipsch SPL-120
- SVS SB-3000 vs Klipsch SPL-120
Prices on this page were last checked September 16, 2026 at 12:41 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
Klipsch SPL-120: $429.99 Amazon eBay
Pros: 12-inch ported with 300W delivers room-filling bass hitting nearly 118dB max SPL. Clean accurate response across whole bass register with tight controlled response at high volumes. Wireless connectivity with optional WA-2 accessory.
Full Klipsch SPL-120 review and specifications →
| Amplifier Power | 300W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 119.7 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 17.7"H x 14.7"W x 19.9"D (450.8 x 372.9 x 504.7 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, front |
| Frequency Response | 24-125Hz |
| Measurement Source | Brent Butterworth |
| Output SPL at 16 Hz | 87.2 dB |
| Output SPL at 20 Hz | 97.9 dB |
| Output SPL at 25 Hz | 108.2 dB |
| Output SPL at 31.5 Hz | 113.5 dB |
| Output SPL at 40 Hz | 116.8 dB |
| Output SPL at 50 Hz | 119.8 dB |
| Output SPL at 63 Hz | 120.9 dB |
| Output SPL at 80 Hz | 121.2 dB |
| Warranty | 5/2 |
| Weight | 45 lbs (20.4 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
- Klipsch SPL-120 vs SVS SB-3000
- Klipsch SPL-120 vs Monoprice SW-15
- Klipsch SPL-120 vs Monoprice SW-12
- Klipsch SPL-120 vs HSU Research ULS-15 MK2
- Klipsch SPL-120 vs SVS SB-2000
- Klipsch SPL-120 vs MartinLogan Dynamo 1600X
- Klipsch SPL-120 vs SVS PB-1000 PRO
- Klipsch SPL-120 vs BIC America PL-300
- See all 11 comparisons