Left
Right
Power
+12V
REM
GND
High Level
Input
EBC
Remote
Input
Gain
4V - 0,1V
Ch.1
Ch.2
Protection
Power
Owner
’s M
anual - M
TX RT
T8P
Thank You !
Thank you for purchasing an MTX Audio High-End amplifier. Proper installation matched with MTX speakers and subwoofers provide
superior sound and performance for endless hours of waking the neighbors, slammin’ your friends or flat out stomping wanna-be
players. Congrats and enjoy the ultimate audio experience with MTX !
Specifications :
• Powered vented tube enclosure
• Mono block class-D amplifier
• Subwoofer : 20cm (8”)
• Amplifier Max Power : 420W
• Amplifier RMS Power : 140W
• High and low level inputs
• EBC (External Bass Control) remote included
• Dimensions : 25,5x26x48cm
Power Terminal (+12V) : This is the main power input for the amplifier and must be connected directly to the positive terminal of the
vehicles battery for proper operation. Use caution when installing (+12V) power cable in the vehicle. Avoid running this cable parallel
with RCA cables, antennas, or other sensitive equipment due to massive currents that can induce noise into the audio system. It is
also very important to have a tight, secure connection for maximum performance. MTX recommends using a minimum of 6mm2 full
copper power wire with the MTX RTT8P.
Remote Terminal (REM) : The amplifier can be turned on by applying 12 volts to this terminal. Typically this voltage is supplied by a wire
from the source unit marked “remote” or “power antenna”.
Ground Terminal (GND) : A proper ground is required for your amplifier to operate at peak performance. A short ground cable the same
diameter as the power cable should be used to attach the ground terminal directly to the chassis of the vehicle. Always remove paint,
dirt or debris to expose bare metal where the ground will be attached.
Protection LED (Prot.) : When the amp is in thermal protection, the LED turns to red.
PowerOn LED (PWR.) : The LED illuminates red when the amp is switched on.
RCA Inputs (Input) : These RCA inputs are used with source units that have RCA or Line level outputs. (Source units need a minimum
level of 100mV output for proper operation of the amplifier). MTX recommends only high quality RCA cables to decrease the possibility
of radiated noise entering the system.
Gain Control (Gain) : The gain control matches the input sensitivity of the amplifier to the source unit being used.
The operating range varies from 100mv to 4V. Adjusting the gain:
1. Turn the gain control on the amplifier all the way down (counter clockwise).
2. Turn up the volume control on the source unit to approximately 3⁄4 of maximum.
3. Adjust the gain control on the amplifier until audible distortion occurs.
4. Adjust the gain control down until audible distortion disappears.
5. The amplifier is now calibrated to the output of the source unit.
Speaker level inputs (High Level Input) : This input will allow the amplifier to operate from source units with speaker-level outputs.
Output speaker leads from the source unit should be tied directly to the wire harness provided with the amplifier.
Note : When speaker level inputs are used, a remote turn on wire must used to switch the amplifier on and off.
Remote bass control port (EBC) : use this port to connect the optional MTX EBC. It alows you to control the output level siting at the
front of the car.
Control Panel on the Amplifier :
