JL Audio HD900/5

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.

Rated Continuous (RMS) Power @ 14.4 VMain Channels @ 4 Ω100 W RMS x 4Main Channels @ 3 Ω75 W RMS x 4Main Channels @ 2 Ω75 W RMS x 4Main Channels @ 1.5 Ω75 W RMS x 4Main Channels - Bridged @ 8 Ω200 W RMS x 2Main Channels - Bridged @ 4 Ω150 W RMS x 2Subwoofer Channel @ 4 Ω500 W RMS x 1Subwoofer Channel @ 3 Ω500 W RMS x 1Subwoofer Channel @ 2 Ω500 W RMS x 1Subwoofer Channel @ 1.5 Ω500 W RMS x 1

Rated Continuous (RMS) Power @ 12.5 VMain Channels @ 4 Ω100 W RMS x 4Main Channels @ 3 Ω75 W RMS x 4Main Channels @ 2 Ω75 W RMS x 4Main Channels @ 1.5 Ω75 W RMS x 4Main Channels - Bridged @ 8 Ω200 W RMS x 2Main Channels - Bridged @ 4 Ω150 W RMS x 2Subwoofer Channel @ 4 Ω500 W RMS x 1Subwoofer Channel @ 3 Ω500 W RMS x 1Subwoofer Channel @ 2 Ω500 W RMS x 1Subwoofer Channel @ 1.5 Ω500 W RMS x 1

General SpecificationsFrequency 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 HzDamping Factor @ 2 Ω>200 / 50 HzTHD+N @ Rated Power (Main Channels)<0.03% @ 4 ΩTHD+N @ Rated Power (Subwoofer Channel)<0.05% @ 4 ΩInput Voltage Range @ RCA InputsSwitchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High)Min.Copper Power / Ground Wire GaugeAccepts up to 4 AWG wireFuse Rating60 A (AFS, AGU or MaxiFuse™)

Signal ProcessingFilter Mode(s): Channels 1 & 2 (front)High-Pass onlyFilter Slope(s): Channels 1 & 2 (front)12/24 dB/octaveFilter Frequency Range: Channels 1 & 2 (front)50 Hz - 500 HzFilter Mode(s): Channels 3 & 4 (rear)High-Pass onlyFilter Slope(s): Channels 3 & 4 (rear)12/24 dB/octaveFilter Frequency Range: Channels 3 & 450 Hz - 500 HzFilter Mode(s): Subwoofer ChannelLow-Pass onlyFilter Slope(s): Subwoofer Channel12/24 dB/octaveFilter Frequency Range: Subwoofer Channel50 Hz - 500 HzDetented, Calibrated Filter Freq. PotentiometersYesFilter Defeat FunctionYesInfrasonic Filter: Subwoofer Channel30 Hz, DefeatableRemote Level ControlOptional (HD-RLC)Remote Level ModesSub Ch. onlyChannel Input Mode SwitchYes (2/4/6 ch.)Pass-Through Preamp OutputNoneSource Channel Selection for PreOutsN/A

Physical SpecificationsHeight (H)1.93 in / 49 mmWidth (W)10.74 in / 273 mmDepth (D)7.85 in / 199 mmNet Weight6.85 lb / 3.11 kg