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HSU Research STF-1 Subwoofer Review

by November 04, 2005


  • Product Name: STF-1 Subwoofer
  • Manufacturer: HSU Research
  • Performance Rating: StarStarStarStar
  • Value Rating: StarStarStarStarStar
  • Review Date: November 04, 2005 19:00
  • MSRP: $ 379 Retail/$249 Direct
  • Buy Now

Bass Extension (+/-2dB): 32Hz
Amplifier Type: BASH topology
Amplified Power: 150 W RMS, 600 W peak
Woofer: 8" Polymer treated paper cone.
Crossover Frequencies: 30Hz-90Hz
Crossover Type: Continuous variable low pass filter with bypass.

Crossover Slope: 24db/octave Linkwitz-Riley
Phase: 0 deg/180 deg
Dimensions (HxWxD): 19" x10" x 16"
Weight (each): 35 lbs
Enclosure Type: Rear ported.


  • High value sub that gives a lot for the money.
  • Musical sound reproduction.
  • Blends into a sound system well.


  • Minor audible artifacts at high SPL.
  • Plain appearance.


The STF-1 is the entry level subwoofer from Hsu Research. At a retail of $379 and a direct price of $249, this is a product that is sure to please both your pocketbook and ears.
About the author:
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Professionally, David engineers building structures. He is also a musician and audio enthusiast. David gives his perspective about loudspeakers and complex audio topics from his mechanical engineering and HAA Certified Level I training.

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