HD900/5 Amplifier

Description

5-Channel Class D System Amplifier, 100 W x 4 + 500 W x 1

Thanks to its ability to act as a “one-box solution”, the HD900/5 is ideal for installations where space is at a premium and sound quality is the paramount goal.

While extremely compact, this amazing amplifier will comfortably drive a complete high-performance car audio system: that is, four satellite speaker systems and a subwoofer system… with a very serious 900 watts of power!

Using our Single Cycle Control switching design and R.I.P.S. technology, the HD900/5 delivers 100 W x 4 to its four main channels, plus a very meaty 500 W to its subwoofer channel. Thanks to R.I.P.S., high power can be delivered over a wide range of load impedances, while the tight power supply regulation keeps distortion down, maximizing sound quality. From a pure sound quality perspective, we invite you to compare the real-world, in-car performance of this amplifier to any other amplifier on the market, of any type, at any price.

This amplifier features a brushed aluminum finish with black powder-coated cast alloy heat sinks and bottom panel. A black powder-coated, gasketed cover is also provided to protect the controls.

• Main Channels @ 4 Ω 100 W RMS x 4
• Main Channels @ 3 Ω 75 W RMS x 4
• Main Channels @ 2 Ω 75 W RMS x 4
• Main Channels @ 1.5 Ω 75 W RMS x 4
• Main Channels – Bridged @ 8 Ω 200 W RMS x 2
• Main Channels – Bridged @ 4 Ω 150 W RMS x 2
• Subwoofer Channel @ 4 Ω 500 W RMS x 1
• Subwoofer Channel @ 3 Ω 500 W RMS x 1
• Subwoofer Channel @ 2 Ω 500 W RMS x 1
• Subwoofer Channel @ 1.5 Ω 500 W RMS x 1

• Main Channels @ 4 Ω 100 W RMS x 4
• Main Channels @ 3 Ω 75 W RMS x 4
• Main Channels @ 2 Ω 75 W RMS x 4
• Main Channels @ 1.5 Ω 75 W RMS x 4
• Main Channels – Bridged @ 8 Ω 200 W RMS x 2
• Main Channels – Bridged @ 4 Ω 150 W RMS x 2
• Subwoofer Channel @ 4 Ω 500 W RMS x 1
• Subwoofer Channel @ 3 Ω 500 W RMS x 1
• Subwoofer Channel @ 2 Ω 500 W RMS x 1
• Subwoofer Channel @ 1.5 Ω 500 W RMS x 1

• Frequency Response (Main Channels) 12 Hz – 28 kHz (+0, -1dB)
• Frequency Response (Subwoofer Channel) 12 Hz – 10 kHz (+0, -1dB)
• S/N Ratio, referred to highest rated power (Main Channels) >108.5 dB below rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth)
• S/N Ratio, referred to 1 W (Main Channels) >88.2 dB (A-weighted, 20 Hz – 20 kHz noise bandwidth)
• Damping Factor @ 4 Ω >400 / 50 Hz
• Damping Factor @ 2 Ω >200 / 50 Hz
• THD+N @ Rated Power (Main Channels) <0.03% @ 4 Ω
• THD+N @ Rated Power (Subwoofer Channel) <0.05% @ 4 Ω
• Input Voltage Range @ RCA Inputs Switchable from 200 mV – 2 V RMS (Low) to 800 mV – 8 V RMS (High)
• Min.Copper Power / Ground Wire Gauge Accepts up to 4 AWG wire
• Fuse Rating 60 A (AFS, AGU or MaxiFuse™)

• Filter Mode(s): Channels 1 & 2 (front) High-Pass only
• Filter Slope(s): Channels 1 & 2 (front) 12/24 dB/octave
• Filter Frequency Range: Channels 1 & 2 (front) 50 Hz – 500 Hz
• Filter Mode(s): Channels 3 & 4 (rear) High-Pass only
• Filter Slope(s): Channels 3 & 4 (rear) 12/24 dB/octave
• Filter Frequency Range: Channels 3 & 4 50 Hz – 500 Hz
• Filter Mode(s): Subwoofer Channel Low-Pass only
• Filter Slope(s): Subwoofer Channel 12/24 dB/octave
• Filter Frequency Range: Subwoofer Channel 50 Hz – 500 Hz
• Detented, Calibrated Filter Freq. Potentiometers Yes
• Filter Defeat Function Yes
• Infrasonic Filter: Subwoofer Channel 30 Hz, Defeatable
• Remote Level Control Optional (HD-RLC)
• Remote Level Modes Sub Ch. only
• Channel Input Mode Switch Yes (2/4/6 ch.)
• Pass-Through Preamp Output None
• Source Channel Selection for PreOuts N/A

• Height (H) 1.93 in / 49 mm
• Width (W) 10.74 in / 273 mm
• Depth (D) 8.29 in / 211 mm
• Net Weight 6.85 lb / 3.11 kg