This is the more valuable multi-voltage unit (11-33V) so it can be installed in 12v and also 28v aircraft.

Tray and connectors included in the auction. ($175 value)

Actual photos of the item so you can see the details.

We will securely package for shipping and will ship within one business day with full insurance. Free shipping with buy it now price  

Thank you for your interest in our auction. Please feel free to contact us if you have any questions.

Product information:

The GMA 340 audio panel offers the latest in digital features to reduce cockpit workload and improve communication.

GMA 340 streamlines cockpit management. It provides MASQ processing, which reduces ambient noise from the avionics inputs, and it has special circuitry to de-emphasize cabin noise to enhance communication in the cockpit. You can select speakers to monitor the aircraft radios or make PA announcements. The 340 also provides comm transmit indication and the three-light Marker Beacon receiver/indicator with high or low sensitivity and SmartMute audio muting.

GMA 340 has two unswitched inputs for telephone ringers, altitude alert warnings or other warning tones, so you'll never miss an important incoming transmission. The 340 also includes a six-place VOX intercom with three modes of isolation, dual stereo music inputs and independent pilot, co-pilot and passenger volume control. In fact, each microphone input has a dedicated VOX circuit to ensure that only the active microphone is heard when squelch is broken.

GMA 340 is easy to install in the tightest aircraft spaces. Operation is available in 14 or 28 volts without voltage converters or dropping resistors. Installation is simplified with the built-in intercom and marker beacon, and the GMA 340 also features photocell dimming of annunciators, pilot fail-safe mode connection to Comm 1 and FAA TSO approval.