Features:

• Power Acoustik Caliber CB1-8000D
• Class-D Full Range 1-Ohm Stable Monoblock Amplifier
• RMS Power Rating:
  • 4 ohms: 1,500 watts x 1 chan.
  • 2 ohms: 2,500 watts x 1 chan.
  • 1 ohm: 4,000 watts x 1 chan.
• Total power output: 8,000 watts
• Pulse Width Modulated MOSFET power supply
• Wired remote bass level control included
• LED power (green) and protect (red) indicators
• Soft start turn-on
• Mono channel operation
• Speaker-level (high-level) inputs
• Preamp RCA outputs to daisy chain multiple amps
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Heavy duty aluminum alloy heat-sink
• Input sensitivity:
  • High level: 200mV-8V
• Frequency Response: 15 - 500 Hz
• Signal to Noise Ration: 105 dB
• Variable low-pass filter: 40 - 180 Hz, 12 dB/octave
• Subsonic filter: 10 - 50 Hz , 12 dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 50 Hz
• Dimensions: 9.5""W x 18""L x 2""H

Specifications: 

Power Specifications - Subwoofer Channel:

• RMS Power @ 4 ohms: 1500 watts x 1 channels
• RMS Power @ 2 ohms: 2500 watts x 1 channels
• RMS Power @ 1 ohm: 4000 watts x 1 channels

Amplifier Specifications:

• Amplifier Series: Caliber
• Amplifier Class: D
• Number of Channels: 1 - Mono
• Total Peak Power Output: 8000 watts
• Total RMS Power Output: 4000 watts
• Maximum Input Gauge Size: 4 AWG
• Minimum Impedance Unbridged: 1 ohms
• Speaker Level Inputs: Yes
• Preamp Outputs: 2 pairs
• Built-in Crossover: Low-Pass (LP), Subsonic
• Low-Pass Crossover Frequency: 40 - 180 Hz
• Subsonic Filter: 10 - 50 Hz
• Signal-to-Noise Ratio: 105 dB
• Bass Boost: 0 - 12 dB
• Bass/Gain Remote: Yes