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GMA™ 345
$2,695.00
Sale price  $2,695.00 Regular price 

Garmin GMA™ 345 - 010-01319-23

The Garmin GMA™ 345 is a digital aircraft audio panel that brings rich, “home theater” quality sound and wireless Bluetooth®¹ audio connectivity to an avionics stack. It is a compelling option for aircraft owners seeking an enhanced inflight audio experience while retaining a compact panel-mounted format.

Wireless Bluetooth®¹ Audio

Bring wireless Bluetooth®¹ audio connectivity into the avionics stack with the GMA™ 345.

Rich Inflight Sound

Enhance the listening experience with Garmin’s stated rich, “home theater” quality sound.

Compact Panel Format

Plan for a 6.3"W x 1.33"H x 8.09"D unit size, including the mounting rack and connectors.

Audio Performance Details

The GMA™ 345 supports a 100 Hz to 6.5 kHz bandwidth and provides 60 dB minimum isolation. Its specified 600 ohm impedance and 5 Vrms maximum input are important technical details when planning the audio system configuration.

Electrical And Environmental Specifications

The unit is specified for 14-28 VDC electrical systems, with an 11 to 33 VDC input power requirement. It is rated for operation from -20° C to +55° C and for unpressurized altitude ranges to +55,000 ft. MSL.

Installation Planning Context

The GMA™ 345 weighs 1.78 lbs (807.4 g), including the rack, backplate and connectors. Its stated dimensions likewise include the mounting rack and connectors, helping define the installed-unit envelope during panel planning.

Not sure this is the right fit for your aircraft?

Avionics compatibility can vary based on your aircraft, existing equipment, and planned installation. Give Neal Avionics a call or send us an email—we’ll be happy to help you review the product and determine whether it fits your needs.

The Garmin GMA™ 345 is a digital audio panel designed to bring home theater-quality sound and wireless Bluetooth® audio connectivity to an aircraft avionics stack. It supports 14-28 VDC electrical systems with an 11 to 33 VDC input requirement, providing a refined inflight audio experience in a compact panel-mounted format.

Bluetooth® Audio Panel for Your Certified Avionics

  • Bluetooth connectivity enables easy access to phone calls and audio entertainment
  • Draws on top-end Garmin audio technology for “home theater” quality sound with dedicated music volume knobs for pilot and copilot
  • 3D Audio processing helps pilots “locate” inputs coming into their headsets
  • USB charging port provides power for smartphones, tablets, music players and more
  • Offers slide-in replacement upgrade for GMA 340 and select third-party audio panels

Bringing rich “home theater” quality sound and wireless Bluetooth¹ audio connectivity to your avionics stack, the GMA 345 digital audio panel offers a superior inflight audio experience at an affordable price. Featuring 3-D spatial sound processing, a USB charging port, marker beacon receiver, advanced Auto Squelch, clearance playback and impressive audio mixing and distribution features, this all-digital unit offers the ideal blend of capabilities for pilots who want to hear and do more with less effort in the cockpit. Plus, it’s an easy slide-in upgrade from select third-party audio panels or legacy GMA 340 units.

Connect Wirelessly with Bluetooth

Built-in Bluetooth connectivity makes it easy for you to wirelessly pair your smartphone or other compatible device with the audio system. So, you can make and receive calls in the cockpit, as well as stream audio entertainment through as many as 6 headset positions in the aircraft. The powered 2.1 amp USB port on the unit’s faceplate helps keep your phones and mobile devices charged. Moreover, GMA 345 features 2 dedicated rear audio connections, allowing hardwired sources — such as SiriusXM® satellite radio or other high-fidelity music inputs — to be played and distributed through the audio system. Music effects also add to the rich audio experience provided by GMA 345. You can select enhanced bass boost levels as well as equalizer effects that include rock, classical and pop audio profiles.

Listen in Virtual 3-D

For your radio communications, advanced 3-D digital sound processing, first introduced to general aviation by Garmin, enables GMA 345 to approximate how the human ear normally hears and registers multiple audio sources in space. With stereo headsets, incoming audio is spatially separated to reflect how different audio sources are coming from different directions around you. This makes it easier to distinguish one source from another — and helps you focus on the higher-priority calls coming into your headset. For example, COMM 1 will seem like it’s coming from the left while COMM 2 will seem to be coming from the right.

Get Instant Replay on ATC Calls and Clearances

An automatic digital voice recorder on the audio panel continuously captures the last 60 seconds of incoming active comm audio for instant playback on request with a single button press. Any pilot who’s ever missed an ATC call, frequency assignment or clearance amendment will appreciate the value of this handy “say again” function.

Experience Advanced Audio Processing

GMA 345 is available with support for either dual comm or three comm operations. There’s a 6-place automatic VOX intercom with 3 modes of isolation. And a split-comm mode lets the pilot and copilot broadcast on independent frequencies. For example, the pilot can use COMM 1 while the copilot separately uses COMM 2.

To further enhance the cockpit audio experience, advanced Auto Squelch technology on GMA 345 automatically adapts to a quiet or noisy environment without clipping words or cutting out during conversation. A high-performance digital signal processor constantly monitors ambient noise level and automatically adjusts the mic squelch level required to keep intercom conversation as comfortable and natural as possible — whether you’re talking over engine noise in flight or quietly going through your preflight checklist on the ground. The unit’s Auto Squelch technology automatically adjusts for these variances, allowing you to speak at normal levels, no matter what the ambient sound conditions may be.

Capture Cockpit Audio on Your Video

GMA 345 can pair via Bluetooth with the VIRB Ultra 30 series of HD action cameras — allowing you to overlay intercom audio and ATC communications on the HD inflight video you’re shooting. Since there’s no headset audio cable required, your VIRB action camera is free to move about the cabin so you can shoot from the best possible angle.

Easy Installation/Upgrade

Upgrading the audio experience in your cockpit is easy with GMA 345. It’s fully rack-and-pin compatible with the Garmin GMA 340 as well as select third-party audio panels. So, it doesn’t take long for your installer to pull out the old and slide in the new. The audio panel’s built-in intercom and marker beacon help further reduce installation time for the system. And since it can operate on either 14 or 28 volts, there’s no need for any external voltage regulators or the wiring that goes with them. Fast, easy, affordable — that’s the GMA 345 audio upgrade path.

¹The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Garmin is under license.

List price quoted is MSRP and Price is shown without installation cost; additional parts may be required. For more complete pricing information, including installation cost, please contact an authorized Garmin aviation dealer.

Product Information

Specifications, Compatibility & Documentation

Review detailed technical specifications, compatible avionics interfaces and available product documentation for the Garmin GMA™ 345 - 010-01319-23. This information can help aircraft owners and operators understand the product’s physical requirements, supported equipment and installation considerations.

Technical Specifications View product dimensions, weight, electrical requirements, operating limitations, performance data and certifications.

Physical & Performance

SpecificationElectrical: 14-28 VDC
SpecificationUnit Size: 6.3"W x 1.33"H x 8.09"D (160 x 34 x 205 mm), includes mounting rack and connectors
SpecificationWeight: 1.78 lbs (807.4 g), includes rack, backplate and connectors

Environmental

SpecificationTemperature: -20° C to +55° C (operating)
SpecificationAltitude range: to +55,000 ft. MSL unpressurized
SpecificationPower requirements: 11 to 33 VDC input                                                        

Radio Inputs

SpecificationImpedance: 600 ohm
SpecificationMax input: 5 Vrms
SpecificationIsolation: 60 dB minimum
SpecificationBandwidth: 100 Hz to 6.5 kHz
SpecificationTransceiver: 3 (2-comm version, including TEL) or 4 (3-comm version, including TEL)
SpecificationReceiver: 5 (NAV1, NAV2, AUX1, AUX2, AUX3)
SpecificationAlerts: 4 (unswitched)
SpecificationTelephone input: 1

Intercom Functions

SpecificationPositions: 6 (pilot, copilot, 4 passengers)
SpecificationVolume control: 2 (pilot, copilot/passengers)
SpecificationVOX: Automatic (1 per MIC input)
SpecificationModes: Pilot, crew, all
SpecificationMIC impedance: 150 ohm
SpecificationMIC bias: 11 VDC through 470 ohm
SpecificationKeyed ICS: Configurable

Music functions

SpecificationInputs: 2 (Independent from Bluetooth audio)
SpecificationImpedance: 600 ohm (differential)
SpecificationMax input: 3.0 Vrms
SpecificationGain: +24 dB Max/-96dB Min
SpecificationInput level: < 200 mVrms at max gain for full power out
SpecificationBandwidth: 20 Hz to 20 kHz
SpecificationDistortion: < 0.1% THD+N typical at full power over full bandwidth
SpecificationMuting: Selectable and configurable
SpecificationVolume Control: Knob controlled (Pilot and copilot/passenger)

Bluetooth

SpecificationSupported profiles: A2DP (music streaming), AVRCP (music playback control) and HFP (phone)
SpecificationPaired devices stored: 10
SpecificationConnections allowed: 1 device
SpecificationSupported devices: Phones, tablets, VIRB XE, VIRB Ultra 30 and select 3rd party cameras
SpecificationVolume: Set by device and adjustable using GMA controls

Headphone Outputs

SpecificationOutput amplifiers: 3 stereo (pilot, copilot, passenger)
SpecificationOutput power: 65 mW into 150 Ohms pilot and copilot, 260 mW into 37.5 Ohms passenger
SpecificationDistortion: < 3% THD+N at 10% Power, < 10% THD+N at full power
SpecificationFrequency response: 20 Hz to 20 kHz
SpecificationImpedance rated: 150 Ohm pilot/copilot, 37.5 Ohm passenger (4-150 Ohm headsets)
SpecificationImpedance supported: 150 to > 600 Ohm

COM/TEL Microphone Outputs

SpecificationOutput power: 15 mW into 150 Ohms (1.5 Vrms)
SpecificationDistortion: < 3% THD+N at 10% power, < 10% THD+N at full power
SpecificationFrequency response: 300 Hz to 6 kHz

USB Charge Port

SpecificationRated power: 10 Watt
SpecificationMax charge current: 2.1 Amps
SpecificationOvercurrent protection: USB charge port protection with current > 2.3 Amps
SpecificationCharging scheme: DCP

Speaker

SpecificationOutputs: 1
Specification28 Volt aircraft: 10 Watt into 4 Ohm; 7 Watt into 8 Ohm
Specification14 Volt aircraft: 3 Watt into 4 Ohm; 8 Ohm Not Recommended
Specification3dB@1kHz Bandwidth 350 Hz to 6.5 kHz
SpecificationDistortion: < 10% THD+N at full power, < 3% THD+N at 10% power

Voice Recorder

SpecificationRecord time max: 1 minute       

Code Load Options

SpecificationSD Card

DIP Switch

SpecificationConfig switches: 8 (see install manual for descriptions)

Lighting Bus

SpecificationVoltage: 14 V or 28 V

Specifications and compatibility information are provided for general reference and may change without notice. Final aircraft eligibility, approved configuration, equipment compatibility and installation requirements must be confirmed by Neal Avionics before installation.

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