This tiny amplifier packs a serious full-range punch, delivering a staggering 100 watts to each of its four channels into 2 ohms (14.4V, 1% THD). The breakthrough that makes this much power possible in such a small chassis is our NexD™ ultra-high-speed switching design, which allows for full bandwidth Class D operation with extremely low distortion and outstanding efficiency.

Use the XD400/4 in combination with our XD600/1 monoblock to build a 1000 W amplification system to power four satellites and a subwoofer... and fit the whole thing under a seat. Or, use the XD400/4 by itself to power two satellites, plus a subwoofer. With XD's, the possibilities are endless.

The XD400/4 includes a 12 dB / octave filter for each channel bank, which can be configured as a low-pass or high-pass filter and offers continuously variable cutoff frequency selection from 50-500 Hz. With the addition of an HD-RLC remote level control (sold separately), the amplifier's Ch. 1 & 2 level or overall level can be directly controlled from the driver's seat.

This amplifier features a black powder-coat finish and a gasketed, brushed aluminum cover for the controls.

Key Features:

• NexD™ Class D Technology
  Cutting-edge switching technology reduces distortion and delivers exceptional efficiency
• Advanced Rollback Protection
  Borrowing a page from the HD amplifiers' bag of tricks, the XD amplifiers employ advanced thermal and low-impedance protection to virtually eliminate annoying amplifier shut-down events
• Active Crossover Features
  Fully variable 12dB/octave filters with detented filter frequency selection controls offer excellent tuning flexibility
• Preamp Outputs
  Pass-through pre-amp outputs permit interconnection of multiple amplifiers (except XD600/6)
• Remote Level Control (HD-RLC)
  With the addition of an HD-RLC you can control the overall level of the amplifier (or amplifiers) from the front of your vehicle
• Differential-Balanced Inputs
  Greatly reduce noise and provide compatibility with a wide range of sources, including most OEM systems

Features:

• Description: 200W 2 Channel Amplifier
• Inputs: One Stereo Pair (RCA-Type Jacks), Differential-Balanced Inputs
• On-board Crossover: State-variable, 12dB/octave Butterworth with continuously variable cutoff frequency selection from 50-500 Hz. Configurable as Low-Pass or High-Pass. Defeatable.
• Speaker output connections: Accept up to 12 AWG wire
• +12V and Ground connections: Accept up to 4 AWG wire

Specifications:

• Rated Power 14.4 V Stereo:
  • 75W RMS x 2 @ 4 ohms
  • 100W RMS x 2 @ 2 ohms
    
• Rated Power 14.4 V Bridged :
  • 150W RMS x 1 @ 8 ohms
  • 200W RMS x 1 @ 4 ohms
    
• Rated Power 12.5 V Stereo:
  • 60W RMS x 2 @ 4 ohms
  • 90W RMS x 2 @ 2 ohms
• Rated Power 12.5 V Bridged:
  • 120W RMS x 1 @ 8 ohms
  • 180W RMS x 1 @ 4 ohms
• THD at Rated Power:<1% THD+Noise (20Hz - 20 kHz)
• S/N Ratio
  • >104 dB referred to rated power (A-weighted, 20 Hz-20 kHz noise bandwidth)
  • >84 dB referred to 1W (A-weighted, 20 Hz-20 kHz noise bandwidth)
• Frequency Response: 12 Hz - 22 kHz (+0, -1dB)
• Damping Factor
  • >150 @ 4 ohms per ch./ 50 Hz
  • >75 @ 2 ohms per ch. / 50 Hz
    
• Input Range: 100mV - 4V RMS

Approximate Dimensions:

• Height: 2.05"
• Width: 7.09"
• Depth: 6.85"