The Amp Man provides authorized Velodyne Acoustics service and component-level repair for the amplifier, power-supply, servo, and control electronics used in HGS subwoofers. Nationwide mail-in service is available.
HGS Models Covered
Service includes HGS-10, HGS-12, HGS-15, HGS-18, HGS Series II, THX variants, and related HGS models where serviceable parts and electronics are available.
Common HGS Symptoms
Typical problems include no output, hum or excessive noise, intermittent operation, failure to power up normally, protection or shutdown behavior, distorted sound, DC offset, amplifier faults, and units that have already had unsuccessful repair attempts.
What We Service
HGS systems use high-power amplifier electronics together with servo and control circuitry. Service can include power-supply repair, amplifier and output-stage repair, controller and servo-circuit diagnostics, signal-path troubleshooting, and restoration of age-related component failures.
Component-Level HGS Restoration
Where practical, the electronics are repaired at the component level instead of replacing the complete amplifier assembly. Repaired electronics are functionally tested before return.
Nationwide HGS Repair Service
Submit a repair request with the exact HGS model and symptoms. We will provide shipping guidance and advise what should be removed from the subwoofer for evaluation.
© 2026 The Amp Man. All rights reserved.