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JL Audio RD400/4


Price $399.00
  • 4-channel car amplifier
  • 75 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
  • 200 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
  • Class D amplifier design with NextD™ switching amp technology
  • differential-balanced inputs help eliminate noise
  • variable low- and high-pass filters (50-500 Hz, 12 dB/octave)
  • LED clip lights help set gain


Get ready to immerse yourself in crystal-clear music with JL Audio’s RD400/4 4-channel amplifier, delivering 75 watts RMS to each of your car’s front and rear speakers. Whether cruising through wind or road noise, your music will cut through with clarity and impact. Need a driving bass to complement your tunes? Simply switch the RD400/4 to 2-channel mode and power a pair of subwoofers with up to 200 watts RMS each. It’s all about customizing your sound experience on the road!