Quadraphonic Four-channel Full Range Class D Power Amplifier
InfoVehicle Info Needed
RETROSOUNDPART NUMBER: 700-QUAD4

Quadraphonic Four-channel Full Range Class D Power Amplifier

$20999
ShippingShips on Sep 21, 2026
Lowest PriceLowest Price Guarantee

Four Channel Power Amplifier
Quadraphonic Four-channel Full Range Class D Power Amplifier
  • 45 watts x 4 RMS
  • Built-in Variable High Pass/Full Range Crossover
  • 7-1/4" L x 3" W x 1-3/4" H

    The RetroSound Quadraphonic is a full-range Class D (digital) power amplifier that plugs directly into any RetroSound radio. Featuring 45 watts x 4 RMS power, Quadraphonic offers exceptional dynamic range and low distortion for the best possible sound reproduction from your RetroSound audio system. Low level RCA inputs also allow Quadraphonic to be used with any aftermarket car stereo system. Quadraphonic is shielded, so it can be mounted behind the dash next to the radio without the need to worry about electrical interference. Quadraphonic has a built-in high pass/full range crossover, and its diminutive size means you can install it virtually anywhere.

    FEATURES

    • 45 watts x 4 channels continuous power output
    • Full range Class D digital circuitry
    • Ultra-low current draw
    • Advanced protection circuitry
    • Shielded to prevent interference with the radio
    • Built-in variable high pass/full range crossover
    • Direct connection compatibility with all RetroSound or aftermarket radios with low-level outputs
    • Compact size (7 1/4 x 3 x 1 3/4 inches / 179 x 71 x 44mm) to fit virtually anywhere
  • The RetroSound Power Amplifiers are full-range Class D (digital) power amplifiers that are designed to plug directly into any RetroSound or aftermarket car stereo system that has low level RCA outputs. They offer exceptional dynamic range and low distortion for the best possible sound reproduction from your audio system. RetroSound Power Amplifiers also have built-in crossover capabilities to fine tune the frequencies that are delivered to your speakers. They are available in three, four or five channel options to provide the best possible sizing and features for your audio system.

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    Features

    • Full range Class D digital circuitry
    • Low current draw
    • Advanced protection circuitry
    • Built-in crossover
    • Works with all RetroSound or aftermarket radios with low-level outputs

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    Part TypeAudio Amplifier
    Product LineRetroSound Power Amplifiers
    BrandRETROSOUND
    Package Height3.4
    Package Width7.9
    Package Length12.6
    Weight3.08 PG
    Part CategoryAccessories
    Vendor Part NumberQUADRAPHONIC
    Package Qty1
    Package TypeEA
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