4-Channel D Class Amplifier With DSP 4 x 32W

A542DSP Plug & Play DSP amplifier with Bluetooth audio streaming 4 x 32 W RMS

AXTON‘s latest generation of the popular DSP amplifiers is back with a big step forward: Hi-Res audio files – and of course, all conventional music data – can now be played thanks to the additional optical or coaxial inputs via the car audio system. This only requires the also newly developed Hi-Res Audio streaming interface ABT50: Just plug it into the A542DSP and enjoy your favorite music in the best audio quality possible. Hi-Res audio data offer the highest dynamic range, depending on the format and a resolution in original studio master quality. Spatiality and transparency benefit from this, but mainly ensures a voluminous bass. Another innovation of these DSP amplifiers is the possibility to connect a remote control to the amplifier in order to easily adjust the overall level and bass boost or to mute the volume if necessary. This control function is particularly interesting when the amplifier is operating “stand-alone”, i.e. without radio. A542DSP is also convincing with the further range of functions: On board are a 31-band equalizer per channel, a time correction and active crossovers. Additionally there‘s the option of streaming music from smartphones via Bluetooth audio (Hi-Res only with ABT50) directly to the amplifier – the control remains convenient. Just use the free controller apps for iOS or Android smartphones at www.axton.de or download it from the Apple App Store. This plug & play DSP amplifier opens up previously unknown dimensions of sound and offers excellent performance and is ideal for puristic car-audio installations. Thanks to plug & play connection including auto-turn-on function and the DSP operated 5-channel pre-amp outputs the amp offers a wide range of possible uses.


  • 4-channel Smart Digital Amplifier with iOS or Android App controlled audio DSP functions
  • 4-channel RCA Cinch preamplifier input
  • Bluetooth Audio Streaming with automatic source switching
  • Optical and coaxial input for lossless music transmission; with optional AXTON ABT50 lossless transmission of Hi-Res Audio music data via Bluetooth or OTG cable
  • Optional remote control with controls for master volume and bass level
  • Plug’N’Play quick installation system via optional vehicle brand wire harness
  • Auto-Turn-On function

DSP Features

  • Control DSP settings via iOS or Android smartphone app via Bluetooth connection
  • Freely configurable active crossover: High-/Low-/Band-/Bypass with 6/12/18/24 dB/oct. Slope
  • Time Alignment in cm for front, rear and subwoofer channels
  • Gain, phase switch and mute function for each speaker
  • Freely configurable 10 or 31-band parametric equalizer for every single front and rear speaker, freely configurable 5-band parametric equalizer for subwoofer channel
  • Memory for your own settings: 5 on the amp, unlimited on the smartphone
  • Dynamic Bass setting for powerful performance without subwoofer
  • Noise Gate function to reduce car stereo background noise
SKU: A542DSP Category: Tags: , , , , ,

Amplifier Info (Car)

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Technical Specifications:

Type of Amplifier: D Class
Channels: 4
Output power @ 4 Ohm: 4 x 54 W MAX
Output power @ 4 Ohm: 4 x 34 W RMS
Playback range: 20 Hz ~ 20 KHz
Audio sampling frequency: 192 KHz
Distortion: 1 KHz < 0.001%
Voltage range: 9 V – 15 V
Signal To Noise Ratio: > 120 dB
Dynamic range: > 100 dB
Quiescent current: 0 mA
Maximum current consumption: 15A
Dimensions (L x W x H): 145(177*) x 114 x 40 mm*Including BT antenna