Anti-Mode X4

High-End Processor / Preamplifier / DAC



  • Description
  • Features
  • Specifications
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Optimize your stereo system with Anti-Mode X4

Speaker-room interaction is typically the most important performance-limiting factor of any high-end audio system. Every listening space introduces errors that can be in the magnitude of dozen decibels or even more. These errors are most pronounced at the bass and lower midrange regions, where the classic acoustic treatment loses its effectiveness.

Anti-Mode X4 is DSPeaker's newest loudspeaker and subwoofer optimization system capable of perfecting the acoustic performance of any full-range stereo audio system. It is based on our new Anti-Mode 3 algorithm which refines the popular Anti-Mode algorithm even further.

Anti-Mode X4 can be connected to almost every audio system.




  • 2 x Stereo RCA inputs, Stereo XLR input
  • 2 independent analog outputs, both XLR and  RCA
  • 3x Coaxial and 3x Toslink S/PDIF digital inputs
  • Coaxial and Toslink S/PDIF digital outputs
  • USB Audio
  • Headphone output and Microphone input




Digital Specifications

DSP Cores:

  • 1 x VS1205 (GUI & USB)
  • 6 x VS1205 (Audio Input, processing)
  • 3 x Hi-Quality DAC (pre-selected), 3 x Hi-Quality ADC


  • Anti-Mode 2.0 Multi-Rate (FIR & IIR)
  • House Curve, Linear-Phase Tilt, Parametric EQs
  • Adjustable Infrasonic
  • Adjustable cross-over

Analog specifications (typical)

  • Analog Output Dynamic Range: 126dB, THD: < 0.0008%
  • Analog Input SNR+THD: 104dB
  • Volume Control Steps: 0.5dB
  • Input Sensitivity XLR: 2.6/5.2/12.4 Vrms, RCA: 2.5/4.4/6.2 Vrms
  • Output Voltage Unbalanced RCA: 3.2/6.4 Vrms max
  • Output Voltage Balanced XLR: 6.4/14.0 Vrms max


  • 436mm x 70mm x 295mm










User's Manual

Owner's manual is available here: antimodex4en.pdf (in English).

USB Audio 2.0 Driver for Windows

Currently Windows does not come with an USB Audio 2.0 driver that would work with DSPeaker Anti-Mode X4. With the driver you get data rates high enough for DSD over PCM (D64 and D128) and higher than 96kHz samplerates, or you can use "Legacy USB", see below.


If you are not using Windows and your PC does not work with Anti-Mode X4, setting Anti-Mode X4 to "Legacy USB" mode (from the Input menu) allows you to use Anti-Mode X4 as USB Audio 1.0 device with a sample rate up to 96kHz.