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Overview: The MTX Thunder75.4 is a full range 4-channel
amplifier. It has aluminum heatsinks to dissipate heat generated by the amplifier.
The amp produces 75 watts RMS x 4 at 4Ω, 100 watts RMS x 4 at 2Ω, and
200 watts RMS x 2 bridged at 4Ω.
Gain: The amp's front and rear channel rotary gain controls
are independent and continuously variable from 200mV to 5V to match the output
of the source unit.
Protection Circuits: The Thunder75.4 provides protection
against overheating, under voltage, and electrical short circuits.
Crossovers: The front and rear channels have independent
- Front: high-pass; continuously variable
from 10 Hz (full range) to 200 Hz
- Rear: switchable between low-pass, full
range, and high-pass; the crossover point (high-pass or low-pass)
is continuously variable from 50 Hz to 750 Hz
Power Terminals: The Thunder75.4 features set screw terminals for
power, ground and remote turn-on. The power and ground terminals will accommodate up
to 4 AWG wire, while the remote turn-on terminal will accept up to 10 AWG wire. The
set screws are loosened/tightened with the supplied Allen wrenches. MTX recommends
the use of 4 AWG power and ground wires.
Note: The Amplifier is not equipped with
an internal fuse. An external 60-amp fuse (not included)
must be installed on the power wire. If the system has only
this amp and a wiring kit is used that includes a fuse with
a value other than 60-amps, the original should be replaced
with a 60-amp fuse.
Speaker Connections: The amplifier is equipped with four pair
of set screw terminal speaker outputs. Each terminal will accommodate up to 10 AWG
bare wire and is loosened/tightened with the supplied Allen wrench.
5 Year Warranty Terms: MTX products purchased on or after
January 1st, 2013 carry a 5-Year Prorated Warranty with the following terms:
- Years 1-2: Products found to be defective in materials
or workmanship during the first two years will be, at Mitek's option,
repaired or replaced by Mitek at no charge. The warranty period does not
renew, but continues on from the original date of purchase.
- Years 3-5: The purchase price of an item which becomes
defective after the first two years and prior to the end of the warranty
period will be prorated and credited toward the purchase of a new MTX
product. The amount of proration is determined by dividing the original
purchase price by the number of months in the warranty period (60), then
multiplying the result by the number of months remaining in the warranty