Model 1100d Class D mono amplifier 

FEATURES:
Super-efficient Class D PWM design.
Runs much cooler than conventional amp designs
High speed MOSFET switching power supply
High current complimentary MOSFET outputs stable into 1 ohm loads
Thermal, DC offset, reverse polarity and short circuit protection with status LED
Master/slave RCA jack functions support two amps bridged to one load
Continuously variable 18 dB/octave low-pass crossover
Switchable continuously variable 18 dB/octave subsonic filter
Switchable 8 dB bass eq function
Switchable phase invert function
Remote subwoofer level control supplied
Variable input sensitivity optimizes match with different signal sources
Gold-plated wire terminals and RCA connectors ensure maximum signal transfer
Rugged one-piece extruded heat sink with insulated nylon mounting feet.
SPECIFICATIONS:

425 watts RMS into 4 ohm, < 0.5% THD @14.4VDC

750 watts RMS into 2 ohm, < 0.75% THD @14.4VDC

1100 watts RMS into 1 ohm, < 0.9% THD @14.4VDC

Dynamic Power Rating (minimum load/14.4VDC)
1400 watts

Conversion efficiency (4 ohm operation)
Greater than 80%

Signal-to-Noise Ratio
Greater than 80 dB

Frequency response
20-250 Hz +0, -1 dB

Typical Damping Factor
50

Crossover range
30 to 250 Hz

Subsonic filter range
20 to 50 Hz

Input Impedance
20 kohm

Input Sensitivity
variable from 150mV to
8 volts

Output Impedance
stable to 1 ohm

Supply Voltage
9 to 16 VDC

Heat Sink Dimensions (H x W x L)
2" x 8-3/4" x 11-13/16"