HELIX Amplify 204 DIRECT 4-Channel Amp DirectDSP

HELIX Amplify 204 DIRECT 4-Channel Amp DirectDSP

R5,899.00

Compact HELIX 4-channel Class D amplifier with DirectDSP input, 4x100W RMS at 4 ohm, bridgeable to 2x380W, compact design and start-stop capable for car audio systems.

Installation is excluded from the advertised product price unless specifically stated otherwise. Should you require professional installation, please contact the Rivonia Car Sound team for advice and a separate quotation. Additional installation accessories may be required, depending on the vehicle and product.

SKU AC20410 Category Tag Brand:

Vehicle logos indicate compatibility only. This product is not manufactured or endorsed by the vehicle brand.

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The HELIX AMPLIFY 204 DIRECT is a compact 4-channel Class D amplifier engineered for DSP-based car audio systems. It is optimized for transparent signal transmission with DirectDSP inputs and a minimalist input architecture for low noise and precise gain control.

Built for flexible installations, the AMPLIFY 204 delivers 4×100 Watts RMS at 4 ohms, 4×190 Watts RMS at 2 ohms and 2×380 Watts RMS bridged at 4 ohms. It features 4x RCA inputs, a remote input, stereo/mono switches for each stereo input, a clipping LED, start-stop capability, a removable top cover to conceal connections and compact dimensions for tight installations.

  • Amplifier type: 4-channel Class D
  • Power RMS: 4 x 100 W @ 4 Ohm, 4 x 190 W @ 2 Ohm, 2 x 380 W bridged @ 4 Ohm
  • Max output per channel: Up to 240 W RMS @ 2 Ohm
  • Inputs: 4 x RCA/Cinch; 1 x Remote In
  • Input sensitivity: 1 – 8 V
  • Input impedance: 67 kOhm
  • Signal-to-noise ratio: 99 dB A-weighted
  • Distortion THD+N: < 0.02% @ 1 kHz, 1 W into 4 Ohm
  • Damping factor: 70
  • Operating voltage: 10.5 – 16 V (max 5 sec down to 6 V)
  • Idle current: 1,100 mA
  • Fuse: 2 x 30 A LP-Mini-fuse (APS)
  • Power rating: DC 12 V 70 A max
  • Operating temperature range: -40 °C to +70 °C
  • Dimensions (H x W x D): 40 x 248 x 114 mm
  • Additional: Start-Stop capability, Clipping LED, DirectDSP inputs, bridgeable outputs, removable top cover
  • DirectDSP inputs for transparent DSP-based systems
  • 4 fully bridgeable channels for flexible system configurations
  • Class D design for high efficiency and low heat
  • Start-stop capability down to 6 V
  • Clipping LED and high-quality gain stage for precise level setting
  • Compact chassis with removable top cover to conceal connections
  • Disconnect vehicle battery before installation and reconnect only after wiring and fuses are secured
  • Use specified fuses: 2 x 30 A LP-Mini-fuse; replace only with correct type and rating
  • Ensure adequate ventilation and avoid mounting in sealed compartments to prevent overheating
  • Operate within specified voltage range 10.5 to 16 V and temperature limits -40 °C to +70 °C
  • Professional installation recommended to ensure correct grounding and speaker loads
  • Compatible with passenger cars and light trucks using 12 V electrical systems
  • Supports vehicles with start-stop systems with supply down to 6 V for brief events
  • Fits installations where a compact 4-channel amplifier is required

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