Anti-Mode X4

The new DSPeaker Anti-Mode X4TM preamplifier/DAC combines an uncompromising selection of audio electronics with more than a decade of expertise in acoustics and signal processing. It was designed with one purpose in mind: to elevate to a new high what is possible in stereo sound reproduction in the domestic environment.

Three high-end stereo digital-to-analog converters (DACs) are driving the primary, auxiliary, and headphone outputs. Combined with output range control and picking the best converters using an IC tester, the XLR outputs reach 126dB dynamic range and less than 0.0008% total harmonic distortion. Both primary and auxiliary outputs are active simultaneously for speakers and subs, available in both XLR and RCA. The signal of the primary output is also provided as optical and coaxial SPDIF.

Input connections are plentiful. The two stereo RCA and one stereo XLR analog inputs provide SNR+THD of -104dB. Whatever audio source you connect, the input range control selection allows you to gain full performance. Total of six SPDIF inputs and the USB Audio 2.0 input support up to 192kHz and DSD64 / DSD128 (on USB).

Technical Specifications

DSP Cores
1 x VS1205 (GUI & Firmware update USB)
6 x VS1205 (Audio Inputs, processing)
3 x High-Quality DAC (pre-selected), 3 x High-Quality ADC

Firmware Highlights
• Anti-Mode 3.0 room calibration algorithm
• Automatic cross-over frequency optimization (US Pat. 9,955,261)
• Extensive tone controls and user-defined parametric equalizers
• Anti-Mode 3.0 Multi-Rate (FIR & IIR)
• House Curve, Linear-Phase Tilt, Parametric EQs
• Adjustable Infrasonic
• Adjustable cross-over

Interfaces
2x stereo RCA, 1x stereo XLR input
3x optical and 3x coaxial inputs (up to stereo 192kHz with coaxial)
USB Audio 2.0 input (192kHz PCM, DSD64 and DSD128 by DSD over PCM)
Primary Output: stereo RCA, stereo XLR, Optical Toslink, and Coaxial S/PDIF
Auxiliary Output: stereo RCA and stereo XLR
Microphone input, Headphone output
Control wheel with a button, IR Remote

Analog specifications (typical)
Primary XLR: Dynamic Range: 126 dB, Total Harmonic Distortion: < 0.0008%
Analog Input, XLR, SNR+THD: -104dB
Frequency Response: 20…20000Hz ±0.08dB
Input Voltage max RCA: 2.5 / 4.4 / 6.2 Vrms, XLR: 2.6 / 5.2 / 12.4 Vrms
Output Voltage max RCA: 3.2 / 6.4 Vrms, XLR: 6.4 / 14.0 Vrms
Power consumption: 25W, stand-by: < 0.5W

Mechanical
Unit dimensions: 436mm x 70mm x 295mm
Unit weight: 4.5kg
Color options: Black or Silver front plate