Boss AR4000D

Features:

• Monoblock ARMOR Series Class D Car Amplifier
• RMS Power Rating:
• 4 ohms: 750 watts x 1 chan.
• 2 ohms: 1500 watts x 1 chan.
• 1 ohm: 3000 watts x 1 chan.
• 2 ohms Strapped Bridged: 6000 watts x 1 chan.
• Max Power: 4000 watts
• Pulse Width Modulated MOSFET power supply
• Wired remote bass level control included
• LED power (green) and protect (red) indicators
• Variable Bass Boost (0 to +18 dB bass boost at 50 Hz)
• Soft start turn-on
• Mono channel operation
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Nickel-plated RCA level inputs
• Nickel-plated screw terminals
• Total Harmonic Distortion (THD): 0.01%
• Signal to Noise Ration: 105 dB
• Variable low-pass filter (50-150 Hz, 24 dB/octave)
• Variable subsonic filter (15-40 Hz, 24 dB/octave)
• Damping factor: 125
• Frequency response: 15 - 150 Hz
• Dimensions: 14-1/3"W x 5"D x 2-8/10"H

Specifications:

Power Specifications - Subwoofer Channel:

• RMS Power @ 4 ohms: 750 watts x 1 channels
• RMS Power @ 2 ohms: 1500 watts x 1 channels
• RMS Power @ 1 ohm: 3000 watts x 1 channels

Power Specifications - Full Range Channels:

• Peak Power @ 4 ohms: 1500 watts x 1 channels
• Peak Power @ 2 ohms: 2000 watts x 1 channels
• Peak Power @ 1 ohm: 4000 watts x 1 channels

Amplifier Specifications:

• Amplifier Series: Armor (Boss)
• Amplifier Class: D
• Number of Channels: 1 - Mono
• Total Peak Power Output: 4000 watts
• Total RMS Power Output: 3000 watts
• Maximum Input Gauge Size: 4 AWG
• Minimum Impedance Unbridged: 1 ohms
• Minimum Impedance Bridged: Not Bridgeable
• THD at Rated RMS Power: .01%
• Speaker Level Inputs: No
• Preamp Outputs: No
• Built-in Crossover: Low-Pass (LP)
• Low-Pass Crossover Frequency: 50 - 150 Hz
• Subsonic Filter: 15 - 40 Hz
• Signal-to-Noise Ratio: 105 dB
• Bass Boost: 0 - 12 dB
• Bass/Gain Remote: Yes
• Fan Cooled: No
• Fuse Rating: 40A x 3 
• CEA-2006 Compliant: No