The JTR Speakers Captivator 4000ULF ranks #4 out of 97 total Large Powered Home Subwoofers (Over 75 lbs) for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
#4 JTR Speakers Captivator 4000ULF: $5,000
How it compares: Just above it: Power Sound Audio (PSA) TRIAX - $2995 more. Just below it: JTR Speakers Captivator 215PRO - $1500 cheaper.
| CEA-2010-A Average (40-80Hz) | 130.8 dB |
|---|---|
| Cabinet Color | black, custom |
| Country | United States |
| Dimensions | 41.0"H x 20.5"W x 39.5"D (1041.4 x 520.7 x 1003.3 mm) |
| Driver | 4x 18" (457mm) drivers |
| Driver(s) | (2) 18 inch |
| Enclosure | ported, front |
| Measurement Source | Data-bass |
| Output SPL at 10 Hz | 111.0 dB |
| Output SPL at 12.5 Hz | 115.3 dB |
| Output SPL at 15 Hz | 119.3 dB |
| Output SPL at 20 Hz | 122.3 dB |
| Output SPL at 25 Hz | 126.1 dB |
| Output SPL at 31.5 Hz | 129.3 dB |
| Output SPL at 40 Hz | 130.7 dB |
| Output SPL at 50 Hz | 131.2 dB |
| Output SPL at 63 Hz | 130.9 dB |
| Output SPL at 80 Hz | 130.6 dB |
| Output SPL at 100 Hz | 130.5 dB |
| Output SPL at 125 Hz | 129.5 dB |
| Warranty | 5/3 |
| Weight | 265 lbs / 120.2 kg |
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Product prices and availability were last checked July 31, 2026 at 5:30 AM UTC 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.