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The Alpine M650 Class-D Amplifier features Bass Engine Sound Tuning that dynamically adjusts the bass depth, between 50 Hz and 200 Hz. This helps in reproducing the required level of thumping beats. The Thermal Management Processor optimally regulates the voltage to internal electronic circuits and thereby prolongs the life of the amplifier and the speaker. It produces high-quality single channel sound at a maximum of 400 Watts RMS at 4 ohms impedance, and 600 Watts at 2 ohms impedance due to its MOSFET-based Amplifier. When bridged as a single channel, the output shoots up to 1000 Watts RMS, resulting in crystal clear multi-speaker amplified output.

The amplifier’s Crossover processes low-pass and high-pass frequencies ranging between 50 Hz to 400 Hz to produce true stereo effects. A signal-to-noise ratio of 65 dB and a Total Harmonic Distortion of less than 0.3% produce rich sound. The Variable Hi-pass and Low-pass filters process sound frequencies varying between 20 Hz and 200 Hz. Its Bass EQ helps you dial in some extra boost even when the volume is low. To eliminate super low frequencies which can suck the power and cause damage to the speakers, this amplifier has a 15 Hz subsonic filter. It also features Gold Plated RCA Input Connectors, Power Screw Terminals, and Speaker Terminals for minimizing metal corrosions.

 The Alpine MRP-650 features machined-metal heat sink that keeps the parts cool, and helps lower distortions even when playing at very high volumes. Besides, it also features Non-Fading Pre Amp Output, 4-Layer Glass Epoxy PC Board, Subsonic Filter, Auto Over-Current Protection, Subsonic Filter, Auto Over-Current Protection, and MOSFET Final Outputs.

• RMS Power: 600W x 1 (at 2 ohms)
• Bridged Power: 1000W x 1 (at 4 ohms)
• 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 compliant

Alpine amplifiers may not be returned for exchange or refund, it can be repaired only!
Refunds will be given only for products that are received in unopened new condition and complete with all packing material, manuals and accessories in their original carton.

• CEA-2006 Power Rating (40hm@14.4V = 1%THD+N), S/N 65dBA (Ref. 1W into 4Ohm): 400W x 1
• RMS Power (at 14.4V THD+N, 20Hz-20kHz):
  • Per channel into 4 ohms: 400W x 1 (0.08% THD)
  • Per channel into 2 ohms: 600W x 1
  • Bridged 4 ohms: 1000W x 1 (0.3% THD)
• Bass Engine Sound Tuning:
  • Crossover Frequency : 50Hz - 400Hz LP (-12dB/oct)
  • Subsonic Filter (Fixed): 15Hz
  • Bass EQ Frequency (Fixed): 50Hz +12dB
• 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 Bridged
• Power Requirements: 14.4V DC (11V to 16V)
• Fuse Type: 30A x 2
• Dimensions (W x H x D): 11-1/64" x 9-31/64" x 2-23/64" (280mm x 241mm x 60mm)
• Weight: 3.7 kg.