Product Description

HD900/5 Features:
• JL Audio HD Series 5-Channel Class D Amplifier
• ¹Main Channels RMS Power Rating (11V-14.5V):
  • 4 ohms: 100 watts x 4 chan.
  • 3 ohms: 75 watts x 4 chan.
  • 2 ohms: 75 watts x 4 chan.
  • 1.5 ohms: 75 watts x 4 chan.
• ¹Bridged RMS Power Rating (11V-14.5V):
  • Bridged, 8 ohms: 200 watts x 2 chan.
  • Bridged, 6 ohms: 150 watts x 2 chan.
  • Bridged, 4 ohms: 150 watts x 2 chan.
  • Bridged, 3 ohms: 150 watts x 2 chan.
• ¹Subwoofer Channel RMS Power Rating (11V-14.5V):
  • 4 ohms: 500 watts x 1 chan.
  • 3 ohms: 500 watts x 1 chan.
  • 2 ohms: 500 watts x 1 chan.
  • 1.5 ohms: 500 watts x 1 chan.
• Class D, switching type with patented Single-Cycle Control technology
• Pulse width modulation-regulated switching power supply
• LED power (green), protect (red) and low impedance (amber) indicators
• Removable Power/Ground and Speaker connectors
• Brushed aluminum finish chassis
• Compact, stackable chassis design
• Black powder-coated, gasketed cover
• RealSink: Vertical, cast alloy fins effectively dissipate heat
• Advanced Thermal Rollback protection system
• R.I.P.S. - Regulated, Intelligent Power Supply
• Single Cycle Control - high-fidelity, full-range class D
  • Compares the real PWM waveform and then corrects it in each and every cycle (over 400,000 times per second)
  • 80% efficiency at 1/2 rated power for the whole amplifier, including its power supply
  • 60% less current draw than a typical Class A/B car amplifier of equal power
  • Less generated heat, smaller chassis than a similarly powerful Class A/B design.
• Noise-killing, highly flexible differential-balanced inputs
• Speaker level inputs via RCA (JL Audio XD-CLRAIC2-SW required and sold separately)
• ²Remote level control input (JL Audio HD-RLC required and sold separately)
• Optional stacking equipment for HD amplifiers: JL Audio HD Stack Kit
• Selectable input voltage/sensitivity:
  • Low level: 200mV - 2V
  • High level: 800mV - 8V
• Selectable input modes: 2 Ch. / 4 Ch.
• Selectable State-variable slope: 12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley
• Cutoff Freq. Range: Continuously variable (All Ch): 50 - 500 Hz
• Selectable Infrasonic Filter (Sub Ch): Off / 30 Hz
• Total Harmonic Distortion: <0.03% @ 4Ω per main ch., <0.05% @ 4Ω sub ch. (Average at 1kHz)
• Signal to Noise Ration:
  • Referred to Rated Power: 108 dBA
  • Referred to 1 Watt: 88 dBA
• Frequency response: 12 - 28,000 Hz (+0, -1 dB)
• Damping Factor Ch. 1-4: >400 @ 4Ω/50 Hz, >200 @ 2Ω/50 Hz
• Damping Factor Sub Ch.: >800 @ 4Ω/50 Hz, >400 @ 2Ω/50 Hz
• Recommended fuse rating: 60A x 1 (inline, not included)
• Dimensions: 10.74"L x 7.85"W x 1.93"H
• SKU # 98223
• 1-Year Warranty