HSU Research VTF-TN1 Review: Rated 3.9/5

Last updated: October 21, 2026

The HSU Research VTF-TN1 is rated 3.9/5 for sound quality, #115 of 143 Large Home Subwoofers (Over 75 lbs). See all Subwoofers rankings for every top pick.

Prices on this page were last checked October 26, 2026 at 12:00 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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Brand: HSU Research

#115 HSU Research VTF-TN1: $1,249.00 HSU Research $1,249.00 eBay

Older models: the HSU Research VTF-15H MK2 (ranked higher, rated 4.2/5) and the HSU Research VTF-15H (ranked higher, rated 4.1/5). See every HSU Research VTF-15H and TN1 generation.

Pros: A 15 inch subwoofer with adjustable ports that trade deeper extension for more output, with very low distortion. Independent CEA-2010 testing (2 ports open) records 107.8 dB at 20 Hz and 117.6 dB through 40-80 Hz. Variable tuning via dual 4” down-firing ports lets the 15” driver reach 15Hz in Max Extension mode or 18Hz in Max Output mode. Extremely low distortion until the highest drive levels.

Cons: The tall cabinet is about 749 mm high and 470 mm wide and deep, and it weighs 38.6 kg, so it is a big, heavy sub to place and move. Output in Max Extension mode drops to 103.0dB at 16Hz and 94.9dB at 12.5Hz, so the deepest notes are still limited. The tuning is set by swapping port plugs, and it costs more than many 12 inch subs.

Is the HSU Research VTF-TN1 right for you?

Skip it if

  • you need to move it often (39 kg each).
  • you want the best value: the higher-rated HSU Research VTF-3 MK5 HP costs about $200 less.
ReleasedMar 2024 (2 years ago)
Amplifier Power600W RMS
CEA-2010-A Average (40-80Hz)117.6 dB
CountryUnited States
Dimensions29.5”H x 18.5”W x 18.5”D (749.3 x 469.9 x 469.9 mm)
Drivers15” driver
Enclosureported, variable tuning
Measurement SourceAudioholics
Output SPL at 12.5 Hz94.9 dB
Output SPL at 16 Hz103.0 dB
Output SPL at 20 Hz107.8 dB
Output SPL at 25 Hz110.9 dB
Output SPL at 31.5 Hz112.9 dB
Output SPL at 40 Hz116.0 dB
Output SPL at 50 Hz117.3 dB
Output SPL at 63 Hz118.3 dB
Output SPL at 80 Hz118.7 dB
Output SPL at 100 Hz119.1 dB
Output SPL at 125 Hz119.1 dB
Warranty7/5
Weight85.1 lbs (38.6 kg)

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