Short answer: the HSU Research VTF-3 MK3 on measured sound quality, the RSL (Rogersound Labs) Speedwoofer 12S on price. The HSU Research VTF-3 MK3 ranks #86 of 97 subwoofers at $1499. The RSL (Rogersound Labs) Speedwoofer 12S ranks #87 at $800, $699 cheaper.
What the RSL (Rogersound Labs) Speedwoofer 12S offers: Independent CEA-2010 testing records 109.3 dB at 20 Hz and 113.2 dB through 40-80 Hz. The ported, rear enclosure with 12” (305mm) driver has the headroom for demanding film bass in a large room. Watch for: The 565.1H x 479.4W x 562.0D mm cabinet and 37.2 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.
What the HSU Research VTF-3 MK3 offers: Independent CEA-2010 testing records 104.3 dB at 20 Hz and 113.5 dB through 40-80 Hz. The ported, rear enclosure with 12” (305mm) driver delivers substantial upper-bass output for movie effects and music. Watch for: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 546.1H x 431.8W x 635.0D mm cabinet and 40.8 kg mass still require deliberate placement and calibration.
Buy the RSL (Rogersound Labs) Speedwoofer 12S if the price matters more than sound quality. Buy the HSU Research VTF-3 MK3 if sound quality matters more than the price.
If sound quality matters at all to you, skip both of these and look higher up the 97 subwoofers instead.
Specifications Side By Side
| RSL (Rogersound Labs) Speedwoofer 12S | HSU Research VTF-3 MK3 | |
|---|---|---|
| Price | $800 | $1499 |
| Ranked | #87 of 97 in Large Powered Home Subwoofers (Over 75 lbs) | #86 of 97 in Large Powered Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, rear | ported, rear |
| Output SPL at 15 Hz | 104.4 dB | 88.5 dB |
| Output SPL at 20 Hz | 109.3 dB | 104.3 dB |
| Output SPL at 25 Hz | 110.9 dB | 108.7 dB |
| Output SPL at 31.5 Hz | 112.5 dB | 109.7 dB |
| Output SPL at 40 Hz | 113.4 dB | 112.1 dB |
| Output SPL at 50 Hz | 113.4 dB | 113.7 dB |
| Output SPL at 63 Hz | 113.0 dB | 114.0 dB |
| Output SPL at 80 Hz | 113.1 dB | 114.0 dB |
| Output SPL at 100 Hz | 112.2 dB | - |
| CEA-2010-A Average (40-80Hz) | 113.2 dB | 113.5 dB |
| Dimensions | 22.2"H x 18.9"W x 22.1"D (565.1 x 479.4 x 562.0 mm) | 21.5"H x 17"W x 25"D (546.1 x 431.8 x 635.0 mm) |
| Weight | 82 lbs / 37.2 kg | 89.9 lbs / 40.8 kg |
| Warranty | ? | - |
| Cabinet Color | black, white | - |
| Country | United States | United States |
| Measurement Source | ErinsAudioCorner | Ilkka Rissanen |
| Drivers | 12" (305mm) driver | 12" (305mm) driver |
Related Speaker Comparisons
A few more comparisons worth a look in the same class:
- Monoprice Monolith M12-S vs HSU Research VTF-3 MK3 with Turbocharger
- Genelec 7070A vs Velodyne Acoustics DD-15
- Arendal 1961 Subwoofer 1V vs Paradigm Prestige 2000SW
- Monoprice Monolith 12 THX Ultra vs HSU Research VTF-3 MK3
- HSU Research VTF-3 MK3 vs HSU Research VTF-3 MK3 with Turbocharger
Prices on this page were last checked September 8, 2026 at 6:02 PM 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 12S: $800 eBay
Pros: Independent CEA-2010 testing records 109.3 dB at 20 Hz and 113.2 dB through 40-80 Hz. The ported, rear enclosure with 12” (305mm) driver has the headroom for demanding film bass in a large room.
Cons: The 565.1H x 479.4W x 562.0D mm cabinet and 37.2 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.
Full RSL (Rogersound Labs) Speedwoofer 12S review and specifications →
| CEA-2010-A Average (40-80Hz) | 113.2 dB |
|---|---|
| Cabinet Color | black, white |
| Country | United States |
| Dimensions | 22.2"H x 18.9"W x 22.1"D (565.1 x 479.4 x 562.0 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, rear |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 15 Hz | 104.4 dB |
| Output SPL at 20 Hz | 109.3 dB |
| Output SPL at 25 Hz | 110.9 dB |
| Output SPL at 31.5 Hz | 112.5 dB |
| Output SPL at 40 Hz | 113.4 dB |
| Output SPL at 50 Hz | 113.4 dB |
| Output SPL at 63 Hz | 113.0 dB |
| Output SPL at 80 Hz | 113.1 dB |
| Output SPL at 100 Hz | 112.2 dB |
| Warranty | ? |
| Weight | 82 lbs / 37.2 kg |
- Links
- Reviews, Comparisons and Sound Samples
HSU Research VTF-3 MK3: $1499 eBay
Pros: Independent CEA-2010 testing records 104.3 dB at 20 Hz and 113.5 dB through 40-80 Hz. The ported, rear enclosure with 12” (305mm) driver delivers substantial upper-bass output for movie effects and music.
Cons: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 546.1H x 431.8W x 635.0D mm cabinet and 40.8 kg mass still require deliberate placement and calibration.
Full HSU Research VTF-3 MK3 review and specifications →
| CEA-2010-A Average (40-80Hz) | 113.5 dB |
|---|---|
| Country | United States |
| Dimensions | 21.5"H x 17"W x 25"D (546.1 x 431.8 x 635.0 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, rear |
| Measurement Source | Ilkka Rissanen |
| Output SPL at 15 Hz | 88.5 dB |
| Output SPL at 20 Hz | 104.3 dB |
| Output SPL at 25 Hz | 108.7 dB |
| Output SPL at 31.5 Hz | 109.7 dB |
| Output SPL at 40 Hz | 112.1 dB |
| Output SPL at 50 Hz | 113.7 dB |
| Output SPL at 63 Hz | 114.0 dB |
| Output SPL at 80 Hz | 114.0 dB |
| Weight | 89.9 lbs / 40.8 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons