ZG-1449-18 The JMK ZG-1449-18 audio amplifier is a dual channel audio amplifier capable of functioning in an automotive environment. Each channel of the amplifier is capable of both simultaneous and independent operation. The amplifier uses vehicle 12 volt power and contains all the necessary filtering and shielding to eliminate electromagnetic interference from other “on-board” equipment such as transmitters relays etc. The amplifier is protected against reverse power hook-up and inadvertent “crow baring “ of the audio output channels. The amplifier can handle vibration and shock as is normally encountered in the automotive environment and storage temperatures of 85ºC. It will operate with a 25% duty cycle continuously at 60ºC. Typical voice or music signals can be amplified continuously even at 80ºC Performance Specifications: Environmental Specifications: Input Voltage : ______ 9—18 Volts dc operating _______ 30 volts max non-operating Output power:_______ 18 Watts peak / channel _______ 12.7 Watts RMS Output impedance: ___ 4.0 ohms Dynamic Range:_____ 40 Db Power bandwidth:____ 20 Hz to 15 KHz 1 Harmonic distortion: __ 5% typical ___ 10% Max @ max temp Channel separation: __ 40 db Input impedance: ____ 10 Kohm Min unbalanced Input sensitivity: _____ 176 mv for full power out Weight: ___________ 2.5 lbs • Operating Temp.: ____ -30 to 60ºC 2 • Storage temp:_______ -40 to 85ºC • Sealing: ________Splash proof and Dust proof • Humidity: __________ 98% @ 38ºC • ___________ 80% @ 66ºC • ___________ Per SAE J1455 • Shock: ____________ 30G, 6 millisecond • Vibration; __________ 2G, 10 to 150 Hz Connections: J1 J2 P1 P2 1. Outside AGC out (-) 2. Outside AGC out (+) 3. Inside AGC out (+) 4. Inside AGC out (-) 1. Inside AGC mic (+) 2. Inside AGC mic (-) 3. Inside speaker (+) 4. Inside speaker (-) 5. Outside Speaker (+) 6. Outside speaker (-) 7. Outside disable 8. Inside disable 9. Disable –15 V 10. N/C 11. + Batt 1. PTT Key 2. Mic audio 3. Mic audio grd 4. PTT Key grd 1. TIB outside audio (in) 2. TIB outside audio Grd 3. TIB inside audio (in) 4. TIB inside audio Grd USA JMK Inc 15 Caldwell Dr. Amherst, NH 03031 EUR JMK Ltd Glasgow G13 1DN Scotland UK PH: 603 886-4100 FX: 603 886-4115 email: [email protected] PH: 44-(0) 7785310729 Fax: 44-(0) 141 589 1884 ZG-1449-18 USA JMK Inc 15 Caldwell Dr. Amherst, NH 03031 EUR JMK Ltd Glasgow G13 1DN Scotland UK PH: 603 886-4100 FX: 603 886-4115 email: [email protected] PH: 44-(0) 7785310729 Fax: 44-(0) 141 589 1884