HEADPHONE, DIST AMP (P/N hdm-3) - As Removed

The hdm-3 is a headphone distribution amplifier for aircraft intercom and audio systems. This component splits audio signals from an audio panel or intercom to multiple passenger headset stations simultaneously. Installed downstream of the audio panel, it amplifies and distributes signals while maintaining signal integrity across multiple connections.

Common in DO-160-qualified systems on corporate and commercial aircraft. Installation follows the aircraft wiring diagram and approved maintenance data, typically referencing FAA TSO-C50c/C139a standards. The amplifier interfaces between the central audio panel and individual headphone jack locations throughout the cabin.

What is the HEADPHONE, DIST AMP (P/N hdm-3)?

The hdm-3 is a headphone distribution amplifier for aircraft intercom and audio systems. This component splits audio signals from an audio panel or intercom to multiple passenger headset stations simultaneously.

Is the hdm-3 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The HEADPHONE, DIST AMP is available in: As Removed. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the hdm-3 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the hdm-3?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.