Short answer: the JTR Captivator 212PRO on output, the Klipsch R-121SW on simplicity. The JTR’s dual 12-inch ported cabinet and 1200W DSP amp are its strengths, but it costs $2799 against $249 and adds ported room interaction in a 32 kg frame. The R-121SW’s 12-inch spun-copper driver and 200W RMS deliver controlled, musical bass with minimal distortion.
What the JTR Speakers Captivator 212PRO gets right: Dual 12-inch ported with 1200W DSP amp and full digital sound processor. The tradeoff: Premium pricing at $2,600, ported room interaction, and 32 kg (70.5 lbs) mid-size footprint.
On the Klipsch R-121SW side: 12-inch spun-copper driver with 200W RMS delivers controlled, musical bass with minimal distortion.
Buy the JTR Speakers Captivator 212PRO when sound quality outweighs the price for you, and the Klipsch R-121SW when the price outweighs sound quality instead.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| JTR Speakers Captivator 212PRO | Klipsch R-121SW | |
|---|---|---|
| Price | $2,600 | $249.00 |
| Ranked | #1 of 145 in Medium Home Subwoofers (30-75 lbs) | #95 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, front | ported, rear |
| Output SPL at 25 Hz | 95.4 dB | 98.4 dB |
| Output SPL at 31.5 Hz | 112.2 dB | 102.3 dB |
| Output SPL at 40 Hz | 122.7 dB | 108.2 dB |
| Output SPL at 50 Hz | 129.2 dB | 112.4 dB |
| Output SPL at 63 Hz | 131.3 dB | 112.9 dB |
| Output SPL at 80 Hz | 133.2 dB | 111.3 dB |
| Output SPL at 100 Hz | 134.6 dB | 109.9 dB |
| Output SPL at 125 Hz | 135.2 dB | 108.3 dB |
| CEA-2010-A Average (40-80Hz) | 129.1 dB | 111.2 dB |
| Dimensions | 16"H x 30"W x 22.5"D (406.4 x 762.0 x 571.5 mm) | 16.6"H x 16"W x 19.7"D (421.6 x 406.4 x 500.4 mm) |
| Weight | 71 lbs (32.2 kg) | 35.1 lbs (15.9 kg) |
| Warranty | 5/3 | 5/2 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Data-bass | Audioholics |
| Amplifier Power | 1200W RMS; Class D with DSP | 200W RMS |
| Inputs | XLR and RCA | - |
| Drivers | 2x 12" (305mm) drivers | 12" (305mm) driver |
| XLR Input | Yes | - |
| RCA Input | Yes | - |
| TRS Input | No | - |
| Optical Input | No | - |
| Coaxial Input | No | - |
| USB Input | No | - |
| HDMI Input | No | - |
| AES Input | No | - |
| Aux Input | No | - |
| Output SPL at 15 Hz | - | 90.7 dB |
| Output SPL at 20 Hz | - | 96.0 dB |
| Frequency Response | - | 28-120Hz |
Related Speaker Comparisons
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- JTR Speakers Captivator 212PRO vs Power Sound Audio (PSA) XV15
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Prices on this page were last checked September 23, 2026 at 11:24 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
JTR Speakers Captivator 212PRO: $2,600 JTR Speakers eBay
Pros: Dual 12-inch ported with 1200W DSP amp and full digital sound processor. Dual-12 output beyond impressive with distortion-free performance. Bulletproof construction for pro sound installations.
Cons: Premium pricing at $2799, ported room interaction, and 32 kg mid-size footprint.
Notes: Looks like “PA sub”
Full JTR Speakers Captivator 212PRO review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 1200W RMS; Class D with DSP |
| Aux Input | No |
| CEA-2010-A Average (40-80Hz) | 129.1 dB |
| Cabinet Color | black |
| Coaxial Input | No |
| Country | United States |
| Dimensions | 16"H x 30"W x 22.5"D (406.4 x 762.0 x 571.5 mm) |
| Drivers | 2x 12" (305mm) drivers |
| Enclosure | ported, front |
| HDMI Input | No |
| Inputs | XLR and RCA |
| Measurement Source | Data-bass |
| Optical Input | No |
| Output SPL at 25 Hz | 95.4 dB |
| Output SPL at 31.5 Hz | 112.2 dB |
| Output SPL at 40 Hz | 122.7 dB |
| Output SPL at 50 Hz | 129.2 dB |
| Output SPL at 63 Hz | 131.3 dB |
| Output SPL at 80 Hz | 133.2 dB |
| Output SPL at 100 Hz | 134.6 dB |
| Output SPL at 125 Hz | 135.2 dB |
| RCA Input | Yes |
| TRS Input | No |
| USB Input | No |
| Warranty | 5/3 |
| Weight | 71 lbs (32.2 kg) |
| XLR Input | Yes |
- 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 212PRO vs MartinLogan Dynamo 1600X
- JTR Speakers Captivator 212PRO vs HSU Research ULS-15 MK2
- JTR Speakers Captivator 212PRO vs Monoprice SW-12
- JTR Speakers Captivator 212PRO vs Power Sound Audio (PSA) XV15
- JTR Speakers Captivator 212PRO vs Monoprice SW-15
- JTR Speakers Captivator 212PRO vs SVS SB-3000
- JTR Speakers Captivator 212PRO vs Rythmik F12
- JTR Speakers Captivator 212PRO vs Power Sound Audio (PSA) XS15SE
- See all 15 comparisons
Klipsch R-121SW: $249.00 Amazon eBay
Pros: 12-inch spun-copper driver with 200W RMS delivers controlled, musical bass with minimal distortion. Front-firing design maximizes placement flexibility. Excellent value with exceptional bang-for-buck.
Full Klipsch R-121SW review and specifications →
| Amplifier Power | 200W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 111.2 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 16.6"H x 16"W x 19.7"D (421.6 x 406.4 x 500.4 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, rear |
| Frequency Response | 28-120Hz |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 90.7 dB |
| Output SPL at 20 Hz | 96.0 dB |
| Output SPL at 25 Hz | 98.4 dB |
| Output SPL at 31.5 Hz | 102.3 dB |
| Output SPL at 40 Hz | 108.2 dB |
| Output SPL at 50 Hz | 112.4 dB |
| Output SPL at 63 Hz | 112.9 dB |
| Output SPL at 80 Hz | 111.3 dB |
| Output SPL at 100 Hz | 109.9 dB |
| Output SPL at 125 Hz | 108.3 dB |
| Warranty | 5/2 |
| Weight | 35.1 lbs (15.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Klipsch R-121SW vs RSL (Rogersound Labs) Speedwoofer 10S MKII
- Klipsch R-121SW vs Monoprice Monolith M-10 V2
- Klipsch R-121SW vs Monoprice SSW-10
- Klipsch R-121SW vs Kef KC62
- Klipsch R-121SW vs SVS PB-1000 PRO
- Klipsch R-121SW vs SVS SB-2000
- Klipsch R-121SW vs JBL HDI-1200P
- Klipsch R-121SW vs Power Sound Audio (PSA) XS15SE
- See all 17 comparisons