JL Audio 450/4v2 Four-Channel System Amplifier OWNER'S MANUAL

Below you will find brief information for Four-Channel System Amplifier 450/4v2. This powerful amplifier offers flexible input and crossover sections, allowing for various system configurations like bi-amplified or tri-amplified setups. It features JL Audio's exclusive R.I.P.S. power supply for consistent performance across different speaker impedances, along with bass EQ and infrasonic filter controls for subwoofer management. Install it carefully, following the detailed instructions.

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JL Audio 450/4v2 Owner's Manual | Manualzz

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Key features

  • R.I.P.S. power supply
  • Flexible crossover controls and filter types (LP, BP, HP)
  • Multiple input modes (2ch, 4ch)
  • Bridgeable channels for mono output
  • Bass EQ and infrasonic filter

Frequently asked questions

4 AWG is recommended. If installing with other amplifiers, use 2 AWG or 1/0 AWG main power wire and connect to the 450/4v2 with 4 AWG.

R.I.P.S. (Regulated, Intelligent Power Supply) automatically adjusts power output to optimize performance for speaker impedances between 1.5 and 4 ohms per channel in stereo mode.

Green (Power): indicates normal operation. Red (Thermal): indicates overheating and reduced power. Amber (Low Ω): indicates low speaker impedance or short circuit.

Yes, the 450/4v2 is designed for bridging channel pairs without needing input inversion adaptors. Each channel pair provides optimum power into a 3-8Ω load when bridged.
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