We are backlogged and do not accept new repairs till September 1, 2026. Please check later.

HSU Research Subwoofer Repair Service

This repair service will cover a plate amplifier repair for HSU subwoofer.
Typical problems:
- no sound
- hum
- auto on/off function does not work
- loud pop
- distortion

This service will not cover:
woofer driver repair, case enclosure repair, water damaged and fire damaged units. Some board can be damaged by fire or lighting beyond repair.
Return shipping is calculated for plate amplifier only, if you ship whole cabinet we will adjust return shipping to actual weight of the package.

Please if you have a question about this service.