Short answer: the JTR Speakers Captivator 1400 for better sound quality, the RSL (Rogersound Labs) Speedwoofer 12S for the lower price. The JTR Speakers Captivator 1400 ranks #28 of 110 subwoofers at $2495. The RSL (Rogersound Labs) Speedwoofer 12S ranks #98 at $800, $1695 cheaper.
What the JTR Speakers Captivator 1400 offers: Independent CEA-2010 testing records 116.1 dB at 20 Hz and 125.2 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver has the headroom for demanding film bass in a large room. Watch for: The 508.0H x 762.0W x 571.5D mm cabinet and 64.4 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 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.
Buy the JTR Speakers Captivator 1400 if sound quality matters more than the price. Buy the RSL (Rogersound Labs) Speedwoofer 12S if the price matters more than sound quality.
The RSL (Rogersound Labs) Speedwoofer 12S is not a sound-quality pick. It sits near the bottom of the 110 subwoofers; there are better options higher up.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| JTR Speakers Captivator 1400 | RSL (Rogersound Labs) Speedwoofer 12S | |
|---|---|---|
| Price | $2495 | $800 |
| Ranked | #28 of 110 in Large Home Subwoofers (Over 75 lbs) | #98 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, rear |
| Output SPL at 12.5 Hz | 99.3 dB | - |
| Output SPL at 15 Hz | 111.9 dB | 104.4 dB |
| Output SPL at 20 Hz | 116.1 dB | 109.3 dB |
| Output SPL at 25 Hz | 119.2 dB | 110.9 dB |
| Output SPL at 31.5 Hz | 121.7 dB | 112.5 dB |
| Output SPL at 40 Hz | 124.8 dB | 113.4 dB |
| Output SPL at 50 Hz | 126.4 dB | 113.4 dB |
| Output SPL at 63 Hz | 125.4 dB | 113.0 dB |
| Output SPL at 80 Hz | 124.0 dB | 113.1 dB |
| Output SPL at 100 Hz | 126.0 dB | 112.2 dB |
| Output SPL at 125 Hz | 124.7 dB | - |
| CEA-2010-A Average (40-80Hz) | 125.2 dB | 113.2 dB |
| Dimensions | 20"H x 30"W x 22.5"D (508.0 x 762.0 x 571.5 mm) | 22.2"H x 18.9"W x 22.1"D (565.1 x 479.4 x 562.0 mm) |
| Weight | 142 lbs (64.4 kg) | 82 lbs (37.2 kg) |
| Warranty | 5/3 | ? |
| Country | United States | United States |
| Measurement Source | Data-bass | ErinsAudioCorner |
| Drivers | 18" (457mm) driver | 12" (305mm) driver |
| Cabinet Color | - | black, white |
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- JTR Speakers Captivator 1400 vs JTR Speakers Growler (2015)
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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
JTR Speakers Captivator 1400: $2495 eBay
Pros: Independent CEA-2010 testing records 116.1 dB at 20 Hz and 125.2 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver has the headroom for demanding film bass in a large room.
Cons: The 508.0H x 762.0W x 571.5D mm cabinet and 64.4 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 JTR Speakers Captivator 1400 review and specifications →
| CEA-2010-A Average (40-80Hz) | 125.2 dB |
|---|---|
| Country | United States |
| Dimensions | 20"H x 30"W x 22.5"D (508.0 x 762.0 x 571.5 mm) |
| Drivers | 18" (457mm) driver |
| Enclosure | ported, front |
| Measurement Source | Data-bass |
| Output SPL at 12.5 Hz | 99.3 dB |
| Output SPL at 15 Hz | 111.9 dB |
| Output SPL at 20 Hz | 116.1 dB |
| Output SPL at 25 Hz | 119.2 dB |
| Output SPL at 31.5 Hz | 121.7 dB |
| Output SPL at 40 Hz | 124.8 dB |
| Output SPL at 50 Hz | 126.4 dB |
| Output SPL at 63 Hz | 125.4 dB |
| Output SPL at 80 Hz | 124.0 dB |
| Output SPL at 100 Hz | 126.0 dB |
| Output SPL at 125 Hz | 124.7 dB |
| Warranty | 5/3 |
| Weight | 142 lbs (64.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Data-bass; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- JTR Speakers Captivator 1400 vs Power Sound Audio (PSA) S3600i
- JTR Speakers Captivator 1400 vs Monoprice Monolith M-215
- JTR Speakers Captivator 1400 vs Rythmik FV25HP
- JTR Speakers Captivator 1400 vs Monoprice Monolith 16 THX Ultra
- JTR Speakers Captivator 1400 vs Funk Audio Classic 18.0
- JTR Speakers Captivator 1400 vs Harbinger V2218S
- JTR Speakers Captivator 1400 vs JTR Speakers Growler (2015)
- JTR Speakers Captivator 1400 vs Funk Audio Ultra 24.0
- See all 16 comparisons
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
- Independently measured by ErinsAudioCorner; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- RSL (Rogersound Labs) Speedwoofer 12S vs HSU Research VTF-3 MK3
- RSL (Rogersound Labs) Speedwoofer 12S vs BK Electronics Monolith-DF
- RSL (Rogersound Labs) Speedwoofer 12S vs SVS SB13-Plus
- RSL (Rogersound Labs) Speedwoofer 12S vs Rythmik F18
- RSL (Rogersound Labs) Speedwoofer 12S vs SVS PB-4000
- RSL (Rogersound Labs) Speedwoofer 12S vs Rythmik FV15HP
- RSL (Rogersound Labs) Speedwoofer 12S vs Monoprice Monolith M-215
- RSL (Rogersound Labs) Speedwoofer 12S vs Rythmik FV25HP
- See all 13 comparisons