JTR Speakers Captivator 2400ULF Review: Ranked #40 of 110

Last updated: September 13, 2026

The JTR Speakers Captivator 2400ULF ranks #40 out of 110 total Large Home Subwoofers (Over 75 lbs) for sound quality. See all Subwoofers rankings for every top pick.

Brand: JTR Speakers

Prices on this page were last checked September 14, 2026 at 1:47 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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JTR Speakers Captivator 2400ULF - ranked #40 of 110 Large Home Subwoofers (Over 75 lbs) · Editor's rating 4.2/5

#40 JTR Speakers Captivator 2400ULF: $3,600 eBay

Pros: Independent CEA-2010 testing records 115.6 dB at 20 Hz and 122.7 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver has the headroom for demanding film bass in a large room.

Cons: The 1041.4H x 520.7W x 571.5D mm cabinet and 74.8 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.

How it compares: Just above it: JTR Speakers Captivator 118HT - $1605 cheaper. Just below it: Funk Audio Classic 21.0L - $605 cheaper.

CEA-2010-A Average (40-80Hz)122.7 dB
Cabinet Colorblack, custom
CountryUnited States
Dimensions41"H x 20.5"W x 22.5"D (1041.4 x 520.7 x 571.5 mm)
Drivers18" (457mm) driver
Enclosureported, front
Measurement SourceData-bass
Output SPL at 10 Hz104.8 dB
Output SPL at 12.5 Hz109.0 dB
Output SPL at 15 Hz112.2 dB
Output SPL at 20 Hz115.6 dB
Output SPL at 25 Hz117.9 dB
Output SPL at 31.5 Hz121.8 dB
Output SPL at 40 Hz123.3 dB
Output SPL at 50 Hz123.3 dB
Output SPL at 63 Hz122.4 dB
Output SPL at 80 Hz121.6 dB
Output SPL at 100 Hz121.3 dB
Output SPL at 125 Hz121.4 dB
Warranty5/3
Weight164.9 lbs (74.8 kg)
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