HSU Research VTF-15H MK2 vs JTR Speakers Captivator 4000ULF

Last updated: August 9, 2026

Short answer: the JTR Speakers Captivator 4000ULF for the higher ranking, the HSU Research VTF-15H MK2 for the lower price. The JTR Speakers Captivator 4000ULF ranks #4 of 97 subwoofers at $5000. The HSU Research VTF-15H MK2 ranks #41 at $1499, $3501 cheaper.

What the HSU Research VTF-15H MK2 gets right: 15-inch ported driver delivers 121.8dB CEA-2010-A average from HSU Research’s long-running VTF series. The tradeoff: Ported enclosure prone to room modes at certain frequencies, mid-large 50 kg size, and $1,500 price point.

Buy the HSU Research VTF-15H MK2 if the price matters more than the ranking. Buy the JTR Speakers Captivator 4000ULF if the ranking matters more than the price.

Specifications Side By Side

HSU Research VTF-15H MK2 JTR Speakers Captivator 4000ULF
Price$1,499$5,000
Ranked#41 of 97 in Large Powered Home Subwoofers (Over 75 lbs)#4 of 97 in Large Powered Home Subwoofers (Over 75 lbs)
Enclosureported, frontported, front
Output SPL at 15 Hz101.6 dB119.3 dB
Output SPL at 20 Hz108.4 dB122.3 dB
Output SPL at 25 Hz114.8 dB126.1 dB
Output SPL at 31.5 Hz119.4 dB129.3 dB
Output SPL at 40 Hz122.9 dB130.7 dB
Output SPL at 50 Hz122.5 dB131.2 dB
Output SPL at 63 Hz121.1 dB130.9 dB
Output SPL at 80 Hz120.5 dB130.6 dB
CEA-2010-A Average (40-80Hz)121.8 dB130.8 dB
Dimensions24.0"H x 18.0"W x 26.0"D (609.6 x 457.2 x 660.4 mm)41.0"H x 20.5"W x 39.5"D (1041.4 x 520.7 x 1003.3 mm)
Weight110 lbs / 49.9 kg265 lbs / 120.2 kg
Warranty7/2(+3)5/3
Cabinet Colorblack, woodblack, custom
CountryUnited StatesUnited States
Measurement SourceManufacturerData-bass
Drivers15" (381mm) driver2x 18" (457mm) driver
Output SPL at 10 Hz-111.0 dB
Output SPL at 12.5 Hz-115.3 dB
Output SPL at 100 Hz-130.5 dB
Output SPL at 125 Hz-129.5 dB

The Two Speakers In Full

HSU Research VTF-15H MK2: $1,499

HSU Research VTF-15H MK2 ranking card

Pros: 15-inch ported driver delivers 121.8dB CEA-2010-A average from HSU Research’s long-running VTF series.

Cons: Ported enclosure prone to room modes at certain frequencies, mid-large 50 kg size, and $1,500 price point.

Notes: Price includes shipping

CEA-2010-A Average (40-80Hz)121.8 dB
Cabinet Colorblack, wood
CountryUnited States
Dimensions24.0"H x 18.0"W x 26.0"D (609.6 x 457.2 x 660.4 mm)
Drivers15" (381mm) driver
Enclosureported, front
Measurement SourceManufacturer
Output SPL at 15 Hz101.6 dB
Output SPL at 20 Hz108.4 dB
Output SPL at 25 Hz114.8 dB
Output SPL at 31.5 Hz119.4 dB
Output SPL at 40 Hz122.9 dB
Output SPL at 50 Hz122.5 dB
Output SPL at 63 Hz121.1 dB
Output SPL at 80 Hz120.5 dB
Warranty7/2(+3)
Weight110 lbs / 49.9 kg

JTR Speakers Captivator 4000ULF: $5,000

JTR Speakers Captivator 4000ULF ranking card

CEA-2010-A Average (40-80Hz)130.8 dB
Cabinet Colorblack, custom
CountryUnited States
Dimensions41.0"H x 20.5"W x 39.5"D (1041.4 x 520.7 x 1003.3 mm)
Drivers2x 18" (457mm) driver
Enclosureported, front
Measurement SourceData-bass
Output SPL at 10 Hz111.0 dB
Output SPL at 12.5 Hz115.3 dB
Output SPL at 15 Hz119.3 dB
Output SPL at 20 Hz122.3 dB
Output SPL at 25 Hz126.1 dB
Output SPL at 31.5 Hz129.3 dB
Output SPL at 40 Hz130.7 dB
Output SPL at 50 Hz131.2 dB
Output SPL at 63 Hz130.9 dB
Output SPL at 80 Hz130.6 dB
Output SPL at 100 Hz130.5 dB
Output SPL at 125 Hz129.5 dB
Warranty5/3
Weight265 lbs / 120.2 kg

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Product prices and availability were last checked August 9, 2026 at 6:57 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.