Alpine mrp-m650 mono amp

This Alpine mrp-m650 is a great powerfull amplfier, just been professionally test and is working well. it has a few marks around it so tidy but not mint.

Alpine MRP-M650 V-Power Digital Mono Amplifier new this amp was $700

Spec off the net

Features 1 Channel (Mono) Operation Thermal Management Processor Subsonic Filter Bass EQ Circuit Selectable Crossover (LP) Adjustable Crossover (LP) MOSFET Power Supply DC-DC PWM Power Supply Discrete Pre-Amp Stage MOSFET Final Outputs STAR Circuitry Auto Over-Current Protection Top Mounted Blue LED Power/Status Indicator Gold Plated RCA Input Connectors Continuously Adjustable Gain Control Speaker Level Inputs Gold Plated Power Screw Terminals Gold Plated Speaker Terminals Non-Fading Pre-Amp Output 4-Layer Glass Epoxy PC Board CEA-2006 Power Rating (mailto:40hm@14.4V = 1%THD+N), S/N 65dBA (Ref. 1W into 4Ohm): 400W x 1 Per channel into 4 ohms: 400W x 1 (0.08% THD) Per channel into 2 ohms: 600W x 1 Crossover Frequency : 50Hz-200Hz,-24dB-oct (LP) Subsonic Filter (Fixed): 15Hz Bass EQ Frequency (Fixed): 50Hz 0 to +12dB Heat Sink (WxHxD) in: 11-1/64" x 9-31/64" x 2-23/64" Heat Sink (WxHxD) mm: 280mm x 241mm x 60mm Foot Print (WxHxD) in: 12-7/8" x 9-31/64" x 2-23/64" Foot Print (WxHxD) mm: 327mm x 241mm x 60mm Power Requirements: 14.4V DC (11V to 16V) Fuse Type: 30A x 2 Frequency Response: 20Hz - 200Hz (+3/-3dB) Signal to Noise (S/N): 90dBA (Reference to Rated Power) Input Sensitivity (For Rated Power): 0.2V to 4.0V (1.0 at Center Detent) Input Impedance: 10k Ohm Speaker Impedance: 4 or 2 ohm Weight: 3.7 Kg.