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 Operating Temp = _______________ -30 to 60ºC 2 Storage temp = ___________________-40 to 85ºC Output Impedance = __________________________4.0 Ohms Dynamic Range = _______________________________40 Db Power Bandwidth = ____________________20 Hz to 15 KHz 1 Harmonic Distortion = ______________________________5% = _____________ 10% Max @ Max Temp Humidity = _____________________ 98% @ 38ºC = _____________________ 80% @ 66ºC = ___________________ Per SAE J1455 Channel Separation = ____________________________40 Db Input Impedance = ______________ 10 Kohm Min unbalanced Input Sensitivity = ________________176 mv for full power out Weight = _____________________________________ 2.5 lbs Vibration = __________________2G, 10 to 150 Hz Sealing = ____________Splash proof & Dust Proof Shock = _____________________ 30G, 6 millisec. Standard Features: Available Options: 1. Ignition switch controlled power. 2. Over voltage protection. 3. P.A. Microphone input. priority. 4. Interior / exterior or both audio selection. 5. AGC control function. 6. AGC speaker or microphone selection. 7. Audio output delay at power up for circuit stabilization. ( 3 seconds ) 8. .Master gain control for each source input. 9. Painted steel enclosure and conformal coated circuitry for reliable operation in harsh environments. 1. 30 second P.A. Microphone time out. 2. Pleasure radio input. 3. 24 volt input 4. Remote digital P.A. volume control. 5. P.A. microphone VOX 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 Connections: J1 1. Outside AGC out (-) 2. Outside AGC out (+) 3. Inside AGC out (+) 4. Inside AGC out (-) J2 P1 P2 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