Short answer: the Klipsch SPL-120 for better sound quality, the Monoprice SSW-10 for the lower price. The Klipsch SPL-120 ranks #18 of 145 subwoofers at $429.99. The Monoprice SSW-10 ranks #72 at $195.99, $234 cheaper.
What the Monoprice SSW-10 offers: 10-inch ultra-slim sealed (7” height) with 150W RMS, 108.2dB average. Hidden under furniture or placement flexibility. Compact design at $189 price. Decent output for slim profile. 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 Monoprice SSW-10 when the price outweighs sound quality for you, and the Klipsch SPL-120 when sound quality outweighs the price instead.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Monoprice SSW-10 | Klipsch SPL-120 | |
|---|---|---|
| Price | $195.99 | $429.99 |
| Ranked | #72 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 | 76.8 dB | 97.9 dB |
| Output SPL at 25 Hz | 85.2 dB | 108.2 dB |
| Output SPL at 31.5 Hz | 96.8 dB | 113.5 dB |
| Output SPL at 40 Hz | 105.7 dB | 116.8 dB |
| Output SPL at 50 Hz | 110.7 dB | 119.8 dB |
| Output SPL at 63 Hz | 118.4 dB | 120.9 dB |
| Output SPL at 80 Hz | 122.1 dB | 121.2 dB |
| CEA-2010-A Average (40-80Hz) | 114.2 dB | 119.7 dB |
| Dimensions | 7"H x 25"W x 15.7"D (177.8 x 635.0 x 398.8 mm) | 17.7"H x 14.7"W x 19.9"D (450.8 x 372.9 x 504.7 mm) |
| Weight | 30 lbs (13.6 kg) | 45 lbs (20.4 kg) |
| Warranty | 1 | 5/2 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Amplifier Power | 150W RMS | 300W RMS |
| Frequency Response | 25Hz+ | 24-125Hz |
| Drivers | 10" (254mm) driver | 12" (305mm) driver |
| Output SPL at 16 Hz | - | 87.2 dB |
Related Speaker Comparisons
More top alternatives to 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Monoprice SSW-10: $195.99 Amazon eBay
Pros: 10-inch ultra-slim sealed (7” height) with 150W RMS, 108.2dB average. Hidden under furniture or placement flexibility. Compact design at $189 price. Decent output for slim profile.
Notes: Product # 33830, low profile (<8in)
Full Monoprice SSW-10 review and specifications →
| Amplifier Power | 150W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 114.2 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 7"H x 25"W x 15.7"D (177.8 x 635.0 x 398.8 mm) |
| Drivers | 10" (254mm) driver |
| Enclosure | sealed |
| Frequency Response | 25Hz+ |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 76.8 dB |
| Output SPL at 25 Hz | 85.2 dB |
| Output SPL at 31.5 Hz | 96.8 dB |
| Output SPL at 40 Hz | 105.7 dB |
| Output SPL at 50 Hz | 110.7 dB |
| Output SPL at 63 Hz | 118.4 dB |
| Output SPL at 80 Hz | 122.1 dB |
| Warranty | 1 |
| Weight | 30 lbs (13.6 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
- Monoprice SSW-10 vs BIC America PL-300
- Monoprice SSW-10 vs RSL (Rogersound Labs) Speedwoofer 10S MKII
- Monoprice SSW-10 vs Klipsch R-121SW
- Monoprice SSW-10 vs Monitor Audio RXW12
- Monoprice SSW-10 vs SVS PB-1000 PRO
- Monoprice SSW-10 vs Monoprice Monolith M-10 V2
- Monoprice SSW-10 vs SVS SB-2000
- Monoprice SSW-10 vs Power Sound Audio (PSA) XS15SE
- See all 17 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 Rythmik F12
- 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
- See all 11 comparisons