This is a brand new item, pulled from my climate-controlled storage unit. The Mercury c800 is one of the nicest-looking amplifiers I have ever seen. The brushed aluminum finish is beautiful. It has many features over the standard monoblock, such as phase shift, subsonic filter, and bass boost with a definable frequency. It is nicely appointed with tiffany RCA inputs. The amplifier makes great power for such a small size. It comes in the original retail box with the bass control knob. Shipping is on me within the USA via UPS.

*Class D mono-block amplifier
*Up to 16V power & 8V audio input
*Mosfet power supply
*Bass boost & subsonic filter
*24dB/oct low pass filter
*1 ohm stable circuits
*Remote level control
*Double layers pcb
*Phase shift
ModelC 800
Supply voltage11~15V DC
Power output @ 2 ohm500W x 1ch
Power output @ 1 ohm800W x 1ch
Frequency response (±3dB)10Hz~300Hz
Signal to noise ratio>80dB
Phase shift0~180゜
Low pass freq.32~300Hz
Bass boost0~12dB
Bass bosst EQ32~100Hz
Recommended fuse type40Ax2
Dimension (LxWxH)241x158x51 mm