Short answer: the JTR Captivator 212PRO on amplifier power, the MartinLogan Dynamo 1600X on deep-bass output. The Dynamo is a sealed 15-inch with 900W RMS and 1800W peak that delivers forceful, clean, tight low bass, with mid-range output listed at 121.5 dB. The JTR pairs a dual 12-inch ported cabinet with a 1200W DSP amp, but costs $2799 against $1606.77.
On the JTR Speakers Captivator 212PRO side: 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.
The case for the MartinLogan Dynamo 1600X: Sealed 15-inch with 900W RMS, 1800W peak delivers forceful clean tight low bass. Set against that: Ported design room integration needs, mid-range 121.5 dB output, and $1,607 price.
Buy the JTR Speakers Captivator 212PRO if sound quality is the priority over the price, or the MartinLogan Dynamo 1600X if the price is the priority over sound quality.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| JTR Speakers Captivator 212PRO | MartinLogan Dynamo 1600X | |
|---|---|---|
| Price | $2,600 | $1,606.77 |
| Ranked | #1 of 145 in Medium Home Subwoofers (30-75 lbs) | #2 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 25 Hz | 95.4 dB | 103.9 dB |
| Output SPL at 31.5 Hz | 112.2 dB | 111.7 dB |
| Output SPL at 40 Hz | 122.7 dB | 118.4 dB |
| Output SPL at 50 Hz | 129.2 dB | 121.0 dB |
| Output SPL at 63 Hz | 131.3 dB | 121.8 dB |
| Output SPL at 80 Hz | 133.2 dB | 121.0 dB |
| Output SPL at 100 Hz | 134.6 dB | 120.2 dB |
| Output SPL at 125 Hz | 135.2 dB | 119.0 dB |
| CEA-2010-A Average (40-80Hz) | 129.1 dB | 120.5 dB |
| Dimensions | 16"H x 30"W x 22.5"D (406.4 x 762.0 x 571.5 mm) | 20.1"H x 17.9"W x 19.1"D (510.5 x 454.7 x 485.1 mm) |
| Weight | 71 lbs (32.2 kg) | 56 lbs (25.4 kg) |
| Warranty | 5/3 | 3 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Data-bass | Audioholics |
| Amplifier Power | 1200W RMS; Class D with DSP | 900W RMS / 1800W peak |
| Inputs | XLR and RCA | RCA (stereo and LFE), XLR (LFE), speaker-level (banana) |
| Drivers | 2x 12" (305mm) drivers | 15" (381mm) driver |
| XLR Input | Yes | Yes |
| RCA Input | Yes | Yes |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Output SPL at 15 Hz | - | 86.2 dB |
| Output SPL at 20 Hz | - | 99.4 dB |
| Frequency Response | - | 20-200Hz, ±3dB |
Related Speaker Comparisons
How JTR Speakers Captivator 212PRO compares with other leading options:
- HSU Research ULS-15 MK2 vs JTR Speakers Captivator 212PRO
- 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
Prices on this page were last checked September 22, 2026 at 5:11 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 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 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
- JTR Speakers Captivator 212PRO vs JBL HDI-1200P
- See all 15 comparisons
MartinLogan Dynamo 1600X: $1,606.77 eBay
Pros: Sealed 15-inch with 900W RMS, 1800W peak delivers forceful clean tight low bass. Easily configurable as forward-firing or down-firing. Smartphone app with Anthem Room Correction (ARC) optimizes bass across room. Wireless capable with optional SWT-X module.
Cons: Ported design room integration needs, mid-range 121.5 dB output, and $1607 price.
Full MartinLogan Dynamo 1600X review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 900W RMS / 1800W peak |
| Aux Input | No |
| CEA-2010-A Average (40-80Hz) | 120.5 dB |
| Cabinet Color | black |
| Coaxial Input | No |
| Country | United States |
| Dimensions | 20.1"H x 17.9"W x 19.1"D (510.5 x 454.7 x 485.1 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | sealed |
| Frequency Response | 20-200Hz, ±3dB |
| HDMI Input | No |
| Inputs | RCA (stereo and LFE), XLR (LFE), speaker-level (banana) |
| Measurement Source | Audioholics |
| Optical Input | No |
| Output SPL at 15 Hz | 86.2 dB |
| Output SPL at 20 Hz | 99.4 dB |
| Output SPL at 25 Hz | 103.9 dB |
| Output SPL at 31.5 Hz | 111.7 dB |
| Output SPL at 40 Hz | 118.4 dB |
| Output SPL at 50 Hz | 121.0 dB |
| Output SPL at 63 Hz | 121.8 dB |
| Output SPL at 80 Hz | 121.0 dB |
| Output SPL at 100 Hz | 120.2 dB |
| Output SPL at 125 Hz | 119.0 dB |
| RCA Input | Yes |
| TRS Input | No |
| USB Input | No |
| Warranty | 3 |
| Weight | 56 lbs (25.4 kg) |
| XLR Input | Yes |
- 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
- MartinLogan Dynamo 1600X vs HSU Research ULS-15 MK2
- MartinLogan Dynamo 1600X vs Monoprice SW-12
- MartinLogan Dynamo 1600X vs Power Sound Audio (PSA) XV15
- MartinLogan Dynamo 1600X vs Paradigm Defiance X12
- MartinLogan Dynamo 1600X vs Power Sound Audio (PSA) XV15-BASE
- MartinLogan Dynamo 1600X vs Power Sound Audio (PSA) XV15SEICE-BASE
- MartinLogan Dynamo 1600X vs Monoprice SW-15
- MartinLogan Dynamo 1600X vs SVS SB-3000
- See all 48 comparisons


