Short answer: both are discontinued, so this only matters if you are buying used. Used, the JTR Speakers Growler (2015) is the better pick: it ranks #13 of 143 subwoofers by sound quality (rated 4.5/5), against #30 (rated 4.3/5) for the JTR Speakers Captivator 1400. If you want one new, the JTR Speakers Captivator 215PRO ranks #7 at $3,500.

Why pick the JTR Speakers Captivator 1400: A low, wide 18 inch ported subwoofer with strong deep bass for movies, easy to tuck under a screen or riser. The tradeoff: The 508.0H x 762.0W x 571.5D mm cabinet and 142 lbs (64.4 kg) mass make this a serious placement and moving commitment.
What the JTR Speakers Growler (2015) does well: A 12 inch ported subwoofer with output close to far bigger flagships, a strong used pick now that it is discontinued. Watch for: Ported design room interaction, 99.2 lbs (45 kg) size, and $2995 cost.
Buy the JTR Speakers Growler (2015) only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the JTR Speakers Captivator 215PRO instead.
Want more options? Browse the full Subwoofers rankings.
A low, wide 18 inch ported subwoofer with strong deep bass for movies, easy to tuck under a screen or riser.
A 12 inch ported subwoofer with output close to far bigger flagships, a strong used pick now that it is discontinued.
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Specifications Side By Side
| JTR Speakers Captivator 1400 | JTR Speakers Growler (2015) | |
|---|---|---|
| Price | $2,495 Discontinued | $2,995 Passive, Discontinued |
| Ranked | #30 of 143 in Large Home Subwoofers (Over 75 lbs) | #13 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| 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 | 92.8 dB |
| Output SPL at 25 Hz | 119.2 dB | 97.2 dB |
| Output SPL at 31.5 Hz | 121.7 dB | 106.6 dB |
| Output SPL at 40 Hz | 124.8 dB | 122.7 dB |
| Output SPL at 50 Hz | 126.4 dB | 130.0 dB |
| Output SPL at 63 Hz | 125.4 dB | 133.6 dB |
| Output SPL at 80 Hz | 124.0 dB | 134.4 dB |
| Output SPL at 100 Hz | 126.0 dB | 135.5 dB |
| Output SPL at 125 Hz | 124.7 dB | 136.0 dB |
| CEA-2010-A Average (40-80Hz) | 125.2 dB | 130.2 dB |
| Dimensions | 20”H x 30”W x 22.5”D (508.0 x 762.0 x 571.5 mm) | 22.5”H x 30”W x 20”D (571.5 x 762.0 x 508.0 mm) |
| Weight | 142 lbs (64.4 kg) | 100.1 lbs (45.4 kg) |
| Warranty | 5/3 | 5 years |
| Country | United States | United States |
| Measurement Source | Data-bass | Data-bass |
| Drivers | 18” (457mm) driver | 12” (305mm) driver |
| Inputs | XLR, RCA | - |
| 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 | - |
| Passive | - | Yes |
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