MTX Thunder801D

Features
Specifications
Inputs and Outputs
Wiring Recommendation

Features

Adaptive Class D Technology: While typical Class D amps tend to generate high frequency energy that must be filtered to prevent harmonic interference in the FM radio frequency range, Adaptive Class D Technology directs the amp's switching energy away from FM radio ranges as the amp's load and output increases. This improves the amp's overall signal-to-noise ratio and eliminates interference generated by more common Class D amps.

Pure N-Channel Design: The pure N-channel design is more linear than typical N-Channel designs, so the speaker you connect to the amplifier will be better controlled. The signal travels through fewer parts so the signal-to-noise ratio is enhanced, the power rating is better, and the amp runs louder, longer.

Low Impedance, High Power Transformers: These provide more power and produce less heat.

Compression Circuit: The amplifier's compression circuit prevents the amplifier from clipping, even at high volume levels. The circuit protects the speakers against the potential damage that can occur during dynamic musical passages. The circuit can be turned on or off, however damage to speakers may occur when the circuit is in the "off" position.

Smart-Engage: If you're planning to keep your factory radio and use the amp's speaker level inputs, Smart-Engage senses the source voltage from the factory radio, meaning you won't have to run a separate turn-on lead and won't necessarily have to remove the factory radio during installation.

Real-time Computerized Protection Circuit: The protection circuit makes sure you amp is operating within safe parameters for maximum power and protection.

Acoustically Seamless Turn-on/Turn-off: A circuit that prevents turn-on/turn-off "thump" is included to eliminate turn-on/off noise.

Iso-Feet: Four rubber Iso-Feet are attached to the amplifier. The rubber feet let you mount the amp securely, while preventing the mounting screws from coming into contact with the amp's chassis.

RCA Outputs: In addition to the set of preamp inputs, there is a set of buffered RCA preamp outputs. The left and right outputs are summed, providing a mono signal, plus the signal is low-pass only, filtered by the amplifier's built-in crossover. The outputs allow you to daisy-chain one bass amplifier to another. Also, the RCA output jacks allow for multiple bass amplifiers to be level controlled using one EBC (sold separately).

EBC (Electronic Bass Control) 2: This amplifier includes an Electronic Bass Control Port (RJ-11 jack) that will accept the cable from an optional EBC. When an EBC is connected, you can adjust the bass level from the driver's seat to overcome noise and other interference. With EBC 2 multiple compatible amps can be controlled.

Intelligent Surface Mount Technology: Features substantially shorter internal and external lead lengths, reducing stray capacitance and inductance, which results in cleaner and more accurate musical reproduction with less noise interference.

Thunder EQ: Thunder EQ is a continuously variable Bass Boost (0-18 dB) centered at 40 Hz. 

Crossover: This amplifier is equipped with a 24dB/octave, low-pass crossover that is always active. There is a crossover frequency control, continuously variable from 40 Hz to 200 Hz, that allows you to dial in the low-pass cut-off frequency of your choice. Note: The built-in crossover also filters the amplifier's line output.

Terminals: The terminals are nickel-plated, heavy-duty screw terminal connectors.

Performance Certificate: MTX tests each amplifier, and the technician records the "actual" power output on the Certified Performance Certificate included with each amp. The amp must meet or exceed the rated specification in order to leave the factory.

Specifications

• 400 Watts x 1 into a 4 Ohm load
• 800 Watts x 1 into a 2 Ohm load

RMS Power Measured at 12.5 Volts DC:

• 250 Watts x 1 into a 4 Ohm load
• 500 Watts x 1 into a 2 Ohm load

Inputs and Outputs

Left Side of Amplifier:

• Line In: RCA stereo jacks
• Line Out: RCA stereo jacks
• EBC Port: a telephone-style (RJ-11) jack for an optional EBC (Electronic Bass Control) 
• Speaker Level Input: a 4-pin input for use with the included speaker-level input harness

Right Side of Amplifier:

• +BATT: (power): screw terminal (terminal is 0.54" wide)
• REM (remote turn-on): (terminal is 0.34" wide) 
• GND (ground): screw terminal (terminal is 0.54" wide)
• Speaker Terminals: there are two sets of terminals (labeled Speaker 1 and Speaker 2), but they are wired internally in parallel and they provide mono output (terminals are 0.34" wide)

Wiring Recommendation

Wiring Recommendation: This amplifier uses three 25-amp fuses, so its total fuse rating is 75 amps. The Streetwires 4-gauge amp wiring kits (item #s: 211PS4B, 211PS4R, 211PS4BI, 211PS4RI) include an 80-amp fuse, which will accommodate the amp's fuse rating. Other 4-gauge amp wiring kits carried by Crutchfield include a 60-amp fuse. If you are using a 4-gauge amp wiring kit with a fuse rated less than 75 amps, the fuse should be replaced with an 80-amp AGU fuse (item #211AGU80).