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Features

Patented PWM MOSFET Switching Power Supply:  This type of power supply is used for maximum power output and protection. 
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.

Defeatable Compression Circuit: This is a new feature that prevents clipping even at high SPL levels and protects the speakers against potential damage at high volumes. It is switchable for those SPL competitors who may run their amplifiers into clipping intentionally. Note: Damage to speakers may occur when the Compression Circuit is "off".

Real-time Computerized Protection Circuit: The protection circuit makes sure your 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.

Rubber Insulated Iso-FeetT: 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. 

Buffered, Isolated RCA Outputs: In addition to the set of preamp inputs, there is a set of full-range RCA preamp outputs. The outputs allow you to daisy-chain one 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 that will accept the cable from an optional EBC. When an EBC is connected, you have access to an additional 3dB of gain and 23dB of attenuation from the driver's seat. If the optional EBC is installed, the bass level will be able to be adjusted 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 (0-18dB) centered at 40Hz. 

Crossover: This amplifier includes a 24dB/octave, low-pass crossover that is always active. There is a crossover frequency control, continuously variable from 40Hz to 200Hz, that allows you to dial in the low-pass cut-off frequency of your choice. 

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

Peak (Dynamic) Power (measured at 14.4 Volts DC): 
850 Watts x 1 into 4 Ohms 
1500 Watts x 1 into 2 Ohms 
Inputs, Outputs, & Controls

Left Side:

Gain Control: allows you to match the input sensitivity of the amplifier to the particular source unit you are using 
Thunder EQ Control: a rotary control that allows you to set the bass boost applied to the speaker output signals 
Frequency Control: a rotary control that allows you to select a low-pass crossover frequency from 40Hz to 200Hz 
Left and Right RCA Input Jacks 
Left and Right RCA Output Jacks: RCA preamp output jacks, which allow you pass full-range signals from this amplifier to another amp in a daisy-chain configuration 
EBC Port: this is a phone-style jack made to accept the cable from and optional EBC (Electronic Bass Control) 
Right Side:

Power Terminal: set screw terminal designed to accept cables as large as 1/0 gauge 
Ground Terminal set screw terminal designed to accept cables as large as 1/0 gauge 
Remote Turn-on Terminal: (0.34" wide) 
Speaker Terminals: (0.34" wide) there are two +/- pairs of terminals, but they are connected together internally and they provide mono output; if two 4-ohm speakers are connected, one to each set of terminals, the amplifier will see a 2-ohm load, because the terminals are internally connected, in parallel with each other