Cobham's AMS43 Multi-User, Single Channel Audio Controller is highly adaptable for VFR, IFR, OAS, forestry, corporate, and fleet aircraft.  Features include COM ½, AUX, FM ½, PA xcvrs., NAV ½, ADF ½, DME/MKR rcvrs., switched TAPE inputs, RX and ICS level Controls, 3-level internal audio alerting, front panel VOX squelch adjustment, 2 direct inputs: one to H/S, one to amplifier, 500 mW high-power output, 3 ICS modes: LIVE/KEYED/VOX, and ICS tie line.