JL Audio 450/4 Mobile Amplifier Owner's Manual

JL Audio 450/4 is a versatile four-channel amplifier capable of driving a variety of speaker configurations. Featuring Absolute Symmetry™ Class AB technology and R.I.P.S. power supply design, this amplifier delivers high-quality audio for your car audio system. It can be configured for bi-amp, tri-amp, or 3-channel operation, offering flexibility for different speaker setups. The 450/4 includes crossover controls to tailor the frequency response for your speakers and a preamp output for connecting additional amplifiers.

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JL Audio 450/4 Owner's Manual - Download & View | Manualzz

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Key features

  • Class AB amplifier
  • R.I.P.S. power supply
  • Bi-amp, tri-amp, and 3-channel operation
  • Crossover controls
  • Preamp output

Frequently asked questions

It delivers 150 watts x 2 for channels 1&2 and 75 watts x 2 for channels 3&4.

Yes, the R.I.P.S. power supply allows for speaker configurations that achieve final nominal impedances between 1.5 – 4Ω per channel in stereo.

The 'Signal From' switch in the preamp output section allows you to choose between sending the signal from CH 1&2, CH 3&4, or a sum of all four channels.
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