190-01134-11 GMA 350/350c/350H/350Hc Installation ManualRev. J Page 1-7*Depends on configuration settings.Distortion: <10% THD+N full power, <3% THD+N @ 10% power3dB Frequency Response Bandwidth: 350 Hz to 6.5 kHz1.3.3 Power RequirementsBluetooth (GMA 350c,GMA 350Hc, and GMA350 Hc Traffic only)A2DP, HFPHeadphone OutputsOutput amplifiers: 3 stereo (pilot, copilot, passengers)Power, Load, and Distortion: 65 mW into 150 Ohms with <10%THD+N @ 10% output <3% THD+NTypical Operating Distortion: <1% THD+N3dB Frequency Response Bandwidth: 20 Hz to 20 kHz for Music350 Hz to 6.5 kHz for Other Audio (MICs, Radios, Alerts)Marker BeaconReceiverFrequency: Crystal controlled at 75 MHzSensitivity: LO 1000 μV hard; HI 200 μV hardSelectivity: 6 dB @ ±10 kHz min, 40 dB @ ±200 kHz max.Input impedance: 50ΩExternal lamp drive: 125 mA max each outputOther outputs: Middle MKR senseSpecial functions: SmartMute TM marker audio mutingTable 1-3. GMA 350/350H Speaker Output (1 output, pilot selectable)Aircraft Voltage Speaker Impedance Output Power14V 8 Ohms Not recommended14V 4 Ohms 3 W28V 8 Ohms 7 W28V 4 Ohms 10 WTable 1-4. GMA 350/350H Power RequirementsCharacteristic SpecificationPower Input Voltage14 Vdc or 28 Vdc. See the Environmental Qualification Form fordetails on surge ratings and minimum/maximumoperating voltages.Table 1-2. GMA 350/350H Electrical CharacteristicsCharacteristic Specification