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 trans-
mitters 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:
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
Environmental Specifications:
•
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
1. Outside AGC out (-)
2. Outside AGC out (+)
3. Inside AGC out (+)
4. Inside AGC out (-)
J2
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
P1
1. PTT Key
2. Mic audio
3. Mic audio grd
4. PTT Key grd
P2
1. TIB outside audio (in)
2. TIB outside audio Grd
3. TIB inside audio (in)
4. TIB inside audio Grd
USA
EUR
JMK Inc 15 Caldwell Dr. Amherst, NH 03031
JMK Ltd Glasgow G13 1DN Scotland UK
PH: 603 886-4100
FX: 603 886-4115
email: info@jmkfilters.com
PH: 44-(0) 7785310729 Fax: 44-(0) 141 589 1884
JMK [ JMK INC. ]
