Amp is practically brand new, and a beast of an amp
$400

* 3000W 1-Channel D-Class Mono Amplifier
* 750W x 1-Ch @ 4-Ohms or
* 1500W x 1-Ch @ 2-Ohms or
* 3000W x 1-Ch @ 1-Ohm RMS
* All Ground Pounder Amplifiers Feature:
* * Ultra-Clean A/B-Class HQ Amplifier Designs
* * Bridgeable Designs: All 2-Ch & 4-Ch
* * 1/2/4-Ohm Capable: GP 1600.1 Only
* * 4-Ch Amps configure into 3-Ch Mode for R & L and Sub
* * Dual-Core MOSFET Power Supply Design
* * High-Grade MOSFET Audio Outputs
* * Remote Bass Control Included
* * Amp Protection with Diagnostics LED's
* * Dual Sound Shaping Controls*
* o 12 dB Bass Boost
* o Mono/Stereo Switch
* o HP/LP/Full-Pass Crossover Selections
* o Crossover Frequency Adjustments:
* (50Hz to 250Hz for all multi-ch amps)
* o (40Hz to 150Hz Low-Pass GP 1600.1)
* * * Exception: GP 1600.1 is Low-pass only & Adds An Adjustable Subsonic Filter 15-55Hz
* * Input Level Control (0.2-5V or 6V for GP 1600.1)
* * RCA Inputs & Line Outputs
* * Removable Amplifier End Caps
* * Oversized Speaker Terminals
* * "Powered By Maxxsonics" Technology