JL Audio RD500/1 : 500W/250W Monoblock Amplifier @ 2Ω/4Ω

JL Audio RD500/1 : 500W/250W Monoblock Amplifier @ 2Ω/4ΩRD Series 500 Watt Monoblock Subwoofer Amplifier @ 2 Ohms. Born to produce a whopping 500 watts into 2 ohms (14. 4V, 1% THD), the RD500 1 amplifier was engineered to generate tons of pure subwoofer bliss from a sleek, ultra compact chassis. The secret behind its power proficiency is JL's proprietary NexD switching technology, which delivers large amounts of power output with precise efficiency and ultra low distortion. For your convenience, the RD500

RD-Series 500-Watt Monoblock Subwoofer Amplifier @ 2-Ohms.

Born to produce a whopping 500 watts into 2 ohms (14.4V, 1% THD), the RD500/1 amplifier was engineered to generate tons of pure subwoofer bliss from a sleek, ultra-compact chassis. The secret behind its power proficiency is JL's proprietary NexD™ switching technology, which delivers large amounts of power output with precise efficiency and ultra-low distortion.

For your convenience, the RD500/1’s controls are located on top of the amplifier, beneath a protective cover, with all connections found along one side of its chassis. Signal processing features include a 12 dB / octave low-pass filter, with continuously variable frequency selection from 50-500 Hz, and a variable bass boost EQ. Dual-range, differential-balanced inputs are also on-hand, capable of accepting most input voltage levels. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard, along with a set of preamp outputs so you can easily pass signals to another amplifier.

The RD500/1 is also equipped with an onboard LED-clipping indicator. This all-new, innovative feature lets you easily set your amplifier’s input sensitivity setting, quickly and accurately, with no special equipment needed. The RD500/1 features a durable, black powder-coated finish and a top-mounted, dual-color LED light strip that reports the overall status and condition. With the addition of an RBC-1 remote level control (sold separately), you can control the subwoofer output directly from the driver’s seat.

Specifications

• Frequency Response	7 Hz - 500 Hz (+0, -1dB)
  S/N Ratio, referred to highest rated power	>80 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
  S/N Ratio, referred to 1 W	>60 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
  Damping Factor @ 4 Ω	>1000 / 50 Hz
  Damping Factor @ 2 Ω	>500 / 50 Hz
  THD+N @ Rated Power	<1% @ 2 Ω per Ch.
  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	4 AWG wire
  Fuse Rating	50 A (AFS, AGU or MaxiFuse™)

Output Specifications

• @ 4 Ω	250 W RMS x 1
  @ 3 Ω	350 W RMS x 1
  @ 2 Ω	500 W RMS x 1
  @ 1.5 Ω	N/A

Documentation

• JL Audio RD500/1 Manual