Picture of product PMA450C

Part #:

Model: PMA450C


PS Engineering


Audio Panel w/o Marker Beacon Receiver

Part Number :



  • The PMA450C is a state-of-the-art audio isolation amplifier and audio selector that contains an automatic voice activated (VOX) intercom system and integral marker beacon receiver
  • It can switch two transceivers(Com 1, Com 2) and six receivers (Nav 1, Nav 2, MKR, and three additional inputs that can be individually
    labeled, for use with ADF, DME AUX, etc.)
  • 3 Softkey User Interface integrated with OLED Graphics Display allowing intuitive operation as well as wide angle view in all levels of cockpit lighting
  • Multiple Bluetooth® modules - unprecedented flexibility
  • IntelliAudio® True Dimensional Sound enhances the ability to listen to two com radios at the same time
  • Bluetooth® Music Streaming with front panel volume control
  • Bluetooth® telephone connection
  • USB-C Charging Port provides 15 Watts of power with Auto-Protection preventing electrical shorts from being an issue. 
  • 4 Independent Music Inputs, Music #1, Music #2, and Bluetooth®  (BT1), Bluetooth® 2 (BT2)
  • Enhanced Digital Aircraft Radio Recorder with display of Com and message number that is being played back
  • Copilot as Passenger function
  • 6 place IntelliVox® automatic VOX hi-fi stereo intercom with advanced intercom functions such as Alternate Intercom Function and Copilot as Passenger
  • 3 User definable switched inputs
  • Monitor Mode allows automatic muting of non-primary radio 
  • 3 music mute modes: Mute On, Mute Off, Radio Mute 
  • Volume control for Intercom, Speaker, Marker Beacon Audio, 3 Switched Inputs, Telephone, and all Music Inputs 
  • Built-in Marker Beacon Receiver
  • Split mode for dual audio panel capability
  • 3 Isolation modes - Pilot Isolate, All, and Crew
  • 4 - 5 un-switched inputs
  • Selectable music distribution for pilot, copilot and passengers
  • RAM (Radio Active Mute) eliminates constant back ground noise from radio static
  • 2-year Pro-Support WarrantyM



Dimensions:  Height: 1.3 in. (3.3 cm) Width: 6.25 in. (15.9 cm), Depth behind panel 7.15 in. (18.16 cm) Weight: PMA450C Unit 1.34 lb. (0.61 kg), Rack with connectors 0.51 lb. (0.24 kg)
Temperature: -15º C to 55ºC Altitude: Up to 35,000 feet in a non-pressurized area
Voltage: 11 to 33 VDC Max Current: 3.5 Amp (Externally protected by a 5A pull-type breaker)
ENVIRONMENTAL Qualifications: A1D1CABSMXXXXXXZBABATBXXE2XXX Audio selector panel input impedance: 510 Ω
Input Isolation: -60 dB (min.) Speaker Muting: -60 dB (min.)
Receiver Inputs: 7 (Com 1, Com 2, Nav 1, Nav 2, 2 ea. Additional switched inputs available for ADF, DME, etc.) Unswitched Inputs:  4 (Two switched inputs can be converted to unswitched, if desired, during installation.)
Transmitter Selections: 3 (Com 1, Com 2, Com1/2) Speaker Impedance: 4 Ω
Headphone Impedance: 150 – 1000 Ω Headphone Output: 30 mW each headset, no clipping <.5% THD typical
Bluetooth Radio: Class 3, FCC ID QOQWT32AE or QOQWT32I Microphone Impedance: 150 - 600 Ω
050-450-0801 Audio Panel w/ Marker Beacon Receiver
050-450-0901 Audio Panel w/o Marker Beacon Receiver 


- Audio Panel w/ Marker Beacon Receiver
Price Condition Status
- Audio Panel w/o Marker Beacon Receiver
Price Condition Status

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