Inputs and Outputs
The amplifier is black with an MTX logo on top.
supply: The amplifier uses a patented PWM MOSFET switching power supply
with class A 100% Discrete Driver Circuit Topology (Preamp input is class A).
output: The gold plated Sum RCA output provides a line level summed
output of the right front/right rear and left front/left rear input signals. It
is typically used to drive an external subwoofer amp. This is a full range
output and is not controlled by the unit's built in crossovers.
boost: Continuously adjustable and defeatable bass enhancement
circuitry (centered at 40Hz, rotary control for 0-18dB adjustment).
If you use the speaker level input on this unit and tie the
front L+ and L- speaker leads from a source unit with BTL outputs (most high
powered radios) the amplifier will turn on whenever there radio is turned on,
allowing for easy factory head unit integration.
amplifier has noiseless turn on-turn off..
controls: There are variable rotary front and rear gain controls.
boost: The bass boost is centered at 40Hz and may be adjusted from
select switch: Allows you to select 4 channel (when a head unit with
four line level outputs is being used) or 2 channel (when a head unit with two
line level outputs is being used).
frequency: The internal crossovers are set at 85 Hz.
select switches: The front channel switch allows you to select whether
the front internal crossover functions as a full-range (no filtering) or
high-pass crossover. The rear channel switch allows you to select whether the
rear internal crossover functions as a full-range, low-pass, or high-pass
crossover. Both crossovers have a slope of 18 dB.
LED: When the power is on the LED lights red.
gold plated left and right, front and rear RCA preamp inputs.
gold plated left and right sum RCA preamp outputs. This output
is full range.
gold plated +12V, Remote and Ground screw terminals.
gold plated Left and right, positive and negative screw terminal speaker
outputs . To bridge the amplifier you use the R(-) and L(+) for the
rear and front channels.
speaker level (high level) inputs are Molex connections used with the
supplied wiring harnesses.
Power measured at 12.5 Volts DC:
x 4 into a 4 Ohm load with less than 0.5% THD
x 4 into a 2 Ohm load with less than 1% THD
x 2 into a 4 Ohm load with less than 1% THD
Power (IHF-202 Standard) measured at 14.4 Volts DC
x 4 into a 4 Ohm load
x 4 into a 2 Ohm load
x 2 into a 4 Ohm load
RMS power is given ONLY for 12.5 volts, so that is what is listed in the
Mounting hardware is NOT
INCLUDED. You will need four self-tapping screws to mount the unit,
wire for power, ground and remote turn on.
amplifier uses two 25 Amp ATC type fuses (blade)