King KMA 20 Audio panel in excellent working order. Removed from a Cessna 172 in November 2013. These units are so popular, you may have been in an aircraft with a King KMA-20 Audio Panel. While no longer in production, the KMA-20 offers King quality at a more affordable price. Easy-to-use toggle switches are used to select audio for headphones or the cabin speaker. The switches let you see your selected audio source at a glance. The KMA-20 also includes a Marker Beacon Receiver and Annunciator Lights. The KMA-20 has the following switch positions: Automatic COMM switching, 2 COMMs, 2 NAVs, ADF, DME, Marker Beacon.
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