The Garmin GMA-350 is a modern, all-digital Audio Panel, Marker Beacon Receiver, and Stereo Intercom that brings improved communications to the cockpit.  It is a solid upgrade for pilots moving from the GMA-340 or legacy Audio Panels, adding intelligent features that cut through cockpit noise and reduce workload without adding complication.

Advanced DSP audio processing and automatic squelch sense cockpit noise levels to deliver low-noise, high-fidelity sound, reducing whine from electrical interference.  Pilots upgrading from older Audio Panels appreciate the noticeably clearer audio and smarter distribution that help maintain focus during busy phases of flight.

The intuitive faceplate includes a clear display with automatic brightness for easy viewing in any light.  Controls are straightforward, and the volume bar gives quick visual feedback on adjustments. Stereo headsets are key to unlocking spatial audio benefits, though mono headsets work with some limitations.

The GMA-350 is not a direct slide-in replacement for the GMA-340, but it does fit in the space vacated by the GMA-340 or legacy Audio Panel.

The GMA-350 offers key features that make a difference in a busy, noisy cockpit:

• Voice Command - This allows hands-free control via a remote push-to-command button and spoken instructions, letting you select sources, adjust intercom or squelch, mute the Marker Beacon, control playback, or change volume while keeping hands on the yoke and eyes outside.

• 3-D Audio Processing - The GMA-350 separates incoming audio spatially by source (COMM1 from the left, COMM2 from the right, other sources from assumed seating position).  This makes it easier to pick out transmissions amid overlapping chatter, which improves communication and situational awareness.

• Digital Voice Recorder - This stores up to 2.5 minutes of COMM audio in memory blocks, with simple playback to review clearances or instructions you might have missed.  It's like "instant replay" for your COMM.

• Marker Beacon Receiver - Delivers dependable alerts with smart muting to avoid unnecessary distractions.

• Split COMM mode - The Pilot and Copilot may operate independent radios simultaneously for efficient crew coordination.

• Six-position Stereo Intercom - There are positions for the Pilot, Copilot, and four passengers, with configurable isolation modes (All, Pilot Isolate, Copilot Isolate, Crew/Passenger, None) to customize audio provided to each.

• Flexible music and entertainment - The GMA-350 features two rear hardwired stereo inputs plus a front 3.5 mm jack for quick device connections, with independent distribution to Intercom positions.

• Full-duplex telephone interface for natural conversations.

• Power-off fail-safe - When power is lost, the GMA-350 connects the Pilot PTT, MIC, and left headset directly to COMM1. This is automatic, ensuring communication during high workload.

• Automatic muting for music, passengers, or other sources during active COMM to keep the cockpit focused.

For pilots upgrading from legacy Audio Panels, the GMA-350 offers a practical path to reduced noise, better-understood communications, and smarter hands-free operation without unnecessary complexity.

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