Big Power with amazing sound quality. This amp was part of a demo system which has now been upgraded. Feel free to ask any questions.

This unit is being sold without the Remote Sub Control.

See below for specs from manufacturers site: 

Focal FDP1.900 1 Channel amplifier 1 x 900 W


ADVANTAGES:
  • Very small size for power output
  • Can be used in full range
  • High-level input, compatible with OEM Stereo
  • Easily accessible settings
  • Remote sub control
  • Invisible mounting bracket
  • Highest level of crossover flexibility
 SPECIFICATIONS:
Power into 4 Ohms1x550W rms
Power into 2Ohms1x900W rms
Signal/noise ratio>95dB (A)
Bass Boost0to+6dB@40Hz
Frequency response5Hz–25kHz
Continuous phase Adjustment0-180°
Adjustable gain200mV to 19V
Dimensions(HxLxD):
2 x 10 x 7-3/4 in (50 x 254 x 196mm)
ProtectionsShort-circuit, thermal overload, polarity reversal, DC