Short answer: the JTR Speakers Captivator 2400, if you are buying new. The Monoprice Monolith 16 THX Ultra measures as well as it (#19 vs #21 of 143 subwoofers, 4.4/5 vs 4.4/5) but is discontinued, so only consider it used; the JTR Speakers Captivator 2400 is still sold new at $3,500.
Buy the JTR Speakers Captivator 2400 new; the Monoprice Monolith 16 THX Ultra is no longer sold new, so it only makes sense as a used find.
Looking for alternatives? See the complete Subwoofers rankings.
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Specifications Side By Side
| JTR Speakers Captivator 2400 | Monoprice Monolith 16 THX Ultra | |
|---|---|---|
| Price | $3,500 | $2,300 Discontinued |
| Ranked | #21 of 143 in Large Home Subwoofers (Over 75 lbs) | #19 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| Output SPL at 10 Hz | 104.8 dB | - |
| Output SPL at 12.5 Hz | 109.1 dB | - |
| Output SPL at 15 Hz | 113.6 dB | 107.3 dB |
| Output SPL at 20 Hz | 115.5 dB | 118.4 dB |
| Output SPL at 25 Hz | 120.0 dB | 123.3 dB |
| Output SPL at 31.5 Hz | 123.3 dB | 125.1 dB |
| Output SPL at 40 Hz | 126.2 dB | 126.3 dB |
| Output SPL at 50 Hz | 126.7 dB | 126.5 dB |
| Output SPL at 63 Hz | 126.3 dB | 126.6 dB |
| Output SPL at 80 Hz | 125.8 dB | 126.8 dB |
| Output SPL at 100 Hz | 125.8 dB | 127.2 dB |
| Output SPL at 125 Hz | 124.2 dB | 127.6 dB |
| CEA-2010-A Average (40-80Hz) | 126.2 dB | 126.5 dB |
| Dimensions | 30”H x 20”W x 22.5”D (762.0 x 508.0 x 571.5 mm) | 25.6”H x 22”W x 28.1”D (650.2 x 558.8 x 713.7 mm) |
| Weight | 147.9 lbs (67.1 kg) | 171.5 lbs (77.8 kg) |
| Warranty | 5/3 | 5 |
| Cabinet Color | black, custom | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Drivers | 18” (457mm) driver | 16” (406mm) driver |
| Inputs | XLR, RCA | XLR, RCA, XLR out |
| 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 |
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