Features:

• Pioneer A-Series GM-A4704
• Class-AB FullRange 2-Ohm Stable 4-Channel Amplifier
• RMS Power Rating:
  • 4 ohms: 40 watts x 4 chan.
  • 2 ohms: 65 watts x 4 chan.
  • Bridged, 4 ohms: 130 watts x 2 chan.
• Max power output: 520 watts.
• CEA-2006 Compliant Amplifier
• Pulse Width Modulated MOSFET power supply
• Balanced Isolator Input Circuit
• LED power (on) and protect (off) indicators
• Soft start turn-on
• 4, 3 or 2 channel operation
• Speaker-level (high-level) inputs with Signal Sensing Turn-on
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Input sensitivity:
  • Low level: 300mV - 6.5V
  • High level: 3V - 26V
• Frequency Response: 10 - 70,000 Hz
• Total Harmonic Distortion (THD): <0.05%
• Signal to Noise Ration: >94 dB
• Selectable crossover modes (Ch A&B): LPF / OFF / HPF
• Crossover frequency Ch A: 80hz, 12 dB/octave
• Variable crossover frequency (Ch B): 40 - 500 Hz, 12 dB/octave
• Fuse Rating: 30A x 1

Specifications:

Power Specifications - Full Range Channels:

• RMS Power @ 4 ohms: 40 watts x 4 channels
• RMS Power @ 2 ohms: 65 watts x 4 channels
• Bridged RMS Power: 130 watts x 2 channels

Power Specifications - Full Range Channels:

• Peak Power @ 4 ohms: 80 watts x 4 channels
• Peak Power @ 2 ohms: 130 watts x 4 channels
• Bridged Peak/Max Power: 260 watts x 2 channels

Amplifier Specifications:

• Amplifier Series: GM Series (Pioneer)
• Amplifier Class: AB
• Number of Channels: 4
• Total Peak Power Output: 520 watts
• Total RMS Power Output: 260 watts
• Maximum Input Gauge Size: Any Gauge with use of Spade Terminal AWG
• Minimum Impedance Unbridged: 2 ohms
• Minimum Impedance Bridged: 4 ohms
• THD at Rated RMS Power: 0.05%
• Speaker Level Inputs: Yes
• Preamp Outputs: No
• Built-in Crossover: Low-Pass (LP), High-Pass (HP), Full (AP)
• High-Pass Crossover Frequency: 40 - 500 Hz
• Low-Pass Crossover Frequency: 40 - 500 Hz
• Signal-to-Noise Ratio: >94 dB
• Bass/Gain Remote: No
• Fan Cooled: No
• Fuse Rating: 30A x 1 
• Strappable: No
• CEA-2006 Compliant: Yes