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R4002 Riot Series Car Amplifier 2-channel 400W x 2

BOSS Audio Systems ★ 3.7/5 · ItemOracle Score Mid-Range

$91 USD
Price subject to change
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BOSS Audio Systems R4002 Riot Series Car Audio Stereo Amplifier 800 High Output, 2 Channel, Class A/B, 2/4 Ohm, Low/High Level Inputs, High/Low Pass Crossover, Full Range, Bridgeable, Subwoofer

Riot Series 2-channel car amplifier with full-range capability and bridging option. Provides multiple input options and crossovers for flexible audio setup; customers note easy installation and value for money, with some quality concerns

Highlights

  • 2-channel amp with bridging option
  • full-range amplification for speakers and subs
  • low & high level input compatibility

Pros

  • easy to install
  • good value for money
  • supports 2 channels and bridging
  • low/high level inputs and crossovers
  • full-range amplification for speakers and subs

Cons

  • reports of noise and alternator whine
  • some units have channels stopping working
  • durability concerns with burnouts

Best For

  • upgrade car audio with 2-channel amp
  • drive door speakers and subs with one amp
  • bridged mode for single subwoofer
  • use low/high level inputs from head unit
  • install in vehicles with noise-prone electrical systems
  • part of budget audio system for enthusiasts

Features

  • 400W max per channel at 2 Ohms; 200W max per channel at 4 Ohms
  • 800W max when bridged at 4 Ohms
  • Full range operation supports speakers and subwoofers
  • Low level (RCA) and high level inputs for signal transfer
  • Class A/B topology with MOSFET power supply

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