RSL (Rogersound Labs) Speedwoofer 10S MKII vs Klipsch SPL-120

Last updated: September 16, 2026

Short answer: the Klipsch SPL-120. It ranks #18 of 145 subwoofers by sound quality at $429.99; the RSL (Rogersound Labs) Speedwoofer 10S MKII ranks #87 and costs $499, so there is little reason to consider the other one.

RSL (Rogersound Labs) Speedwoofer 10S MKII vs Klipsch SPL-120

What the RSL (Rogersound Labs) Speedwoofer 10S MKII offers: 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. 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 RSL (Rogersound Labs) Speedwoofer 10S MKII and costs less, so there is no real case for the other one.

Looking for alternatives? See the complete Subwoofers rankings.

Buy the Klipsch SPL-120 at Amazon ($429.99) →Buy the RSL (Rogersound Labs) Speedwoofer 10S MKII at RSL (Rogersound Labs) ($499) →

Specifications Side By Side

RSL (Rogersound Labs) Speedwoofer 10S MKII Klipsch SPL-120
Price$450$429.99
Ranked#87 of 145 in Medium Home Subwoofers (30-75 lbs)#18 of 145 in Medium Home Subwoofers (30-75 lbs)
Enclosureported, rearported, front
Output SPL at 15 Hz89.0 dB-
Output SPL at 20 Hz100.0 dB97.9 dB
Output SPL at 25 Hz105.0 dB108.2 dB
Output SPL at 31.5 Hz107.7 dB113.5 dB
Output SPL at 40 Hz110.3 dB116.8 dB
Output SPL at 50 Hz112.9 dB119.8 dB
Output SPL at 63 Hz113.0 dB120.9 dB
Output SPL at 80 Hz112.1 dB121.2 dB
Output SPL at 100 Hz111.4 dB-
Output SPL at 125 Hz110.7 dB-
CEA-2010-A Average (40-80Hz)112.1 dB119.7 dB
Dimensions15.5"H x 15"W x 15.7"D (393.7 x 381.0 x 400.0 mm)17.7"H x 14.7"W x 19.9"D (450.8 x 372.9 x 504.7 mm)
Weight40.6 lbs (18.4 kg)45 lbs (20.4 kg)
Warranty?5/2
Cabinet Colorblack, whiteblack
CountryUnited StatesUnited States
Measurement SourceAudioholicsBrent Butterworth
Amplifier Power400W RMS300W RMS
Frequency Response21-200Hz24-125Hz
Drivers10" (254mm) driver12" (305mm) driver
Output SPL at 16 Hz-87.2 dB
Buy the Klipsch SPL-120 at Amazon ($429.99) →Buy the RSL (Rogersound Labs) Speedwoofer 10S MKII at RSL (Rogersound Labs) ($499) →

More top alternatives to 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

RSL (Rogersound Labs) Speedwoofer 10S MKII: $450 RSL (Rogersound Labs) eBay

RSL (Rogersound Labs) Speedwoofer 10S MKII ranking card

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.

Full RSL (Rogersound Labs) Speedwoofer 10S MKII review and specifications →

Amplifier Power400W RMS
CEA-2010-A Average (40-80Hz)112.1 dB
Cabinet Colorblack, white
CountryUnited States
Dimensions15.5"H x 15"W x 15.7"D (393.7 x 381.0 x 400.0 mm)
Drivers10" (254mm) driver
Enclosureported, rear
Frequency Response21-200Hz
Measurement SourceAudioholics
Output SPL at 15 Hz89.0 dB
Output SPL at 20 Hz100.0 dB
Output SPL at 25 Hz105.0 dB
Output SPL at 31.5 Hz107.7 dB
Output SPL at 40 Hz110.3 dB
Output SPL at 50 Hz112.9 dB
Output SPL at 63 Hz113.0 dB
Output SPL at 80 Hz112.1 dB
Output SPL at 100 Hz111.4 dB
Output SPL at 125 Hz110.7 dB
Warranty?
Weight40.6 lbs (18.4 kg)
Check current price at RSL (Rogersound Labs) ($499) →Search eBay for RSL (Rogersound Labs) Speedwoofer 10S MKII →

Klipsch SPL-120: $429.99 Amazon eBay

Klipsch SPL-120 ranking card

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 Power300W RMS
CEA-2010-A Average (40-80Hz)119.7 dB
Cabinet Colorblack
CountryUnited States
Dimensions17.7"H x 14.7"W x 19.9"D (450.8 x 372.9 x 504.7 mm)
Drivers12" (305mm) driver
Enclosureported, front
Frequency Response24-125Hz
Measurement SourceBrent Butterworth
Output SPL at 16 Hz87.2 dB
Output SPL at 20 Hz97.9 dB
Output SPL at 25 Hz108.2 dB
Output SPL at 31.5 Hz113.5 dB
Output SPL at 40 Hz116.8 dB
Output SPL at 50 Hz119.8 dB
Output SPL at 63 Hz120.9 dB
Output SPL at 80 Hz121.2 dB
Warranty5/2
Weight45 lbs (20.4 kg)
Check current price at Amazon ($429.99) →Search eBay for Klipsch SPL-120 →