www.mtx.com - www.mtx.eu.com
O
wner
’s M
anual -
TH902
Connectors panel :
RCA Inputs - 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 twisted pair cables (such as StreetWires)
to decrease the possibility of radiated noise entering the system.
High Level Inputs :
MTX amplifiers allow high level inputs through RCA type input connections.
Simply connect the head unit speaker leads to the provided adapters.
Speaker Terminals - Connect speakers to these terminals. Observe speaker
polarity throughout the system. Improper phase can result in loss of bass re
-
sponse and/or poor overall sound quality.
Bridge Mode:
When bridging the amplifier, use the left positive terminal and the right negative terminal only.
Warning
: do not bridge the amplifier with an impedance lower than 4 ohm.
Thermal Protection - This LED illuminates red when the amp reaches 100°C. The LED also turns red when the
power supply goes below 9V or over 16.2V.
Short Circuit Protection - This LED will flash yellow when the speaker outputs will short circuit. Without signal,
this LED can remain yellow when the speaker outputs are short circuited.
Fuses - When fuses blow, replace them with the same value. Never use a higher rated fuse !
(+12) Power Terminal - This is the main power input for the amplifier and must be connected directly to the posi
-
tive terminal of the vehicles battery for proper operation. Use caution when installing (+12) 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 21mm
2
power wire with the MTX TH902 amplifier.
Remote Terminal – 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 – 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.
High level inputs
through RCA
Adaptors
included
To Head
Unit
Speakers
