DSPeakerAnti-Mode X4newDSPeaker Anti-Mode X4 Room correction/Preamp and DAC with crossoverAsk us about 6 months NO INTEREST & NO PAYMENTS thru PayPal Free freight in the USAGreat Anti-Mode 2.0 trades available-Get $800.00 on your Anti-Mode 2.0 (2013 version) with ...4250.00

DSPeaker Anti-Mode X4 Room correction/Preamp and DAC with crossover [Expired]

no longer for sale

  Ask us about 6 months NO INTEREST & NO PAYMENTS thru PayPal

                  Free freight in the USA

Great Anti-Mode 2.0 trades available-Get $800.00 on your Anti-Mode 2.0 (2013 version) with trade. Call to discuss

Before you buy a DSPeaker or give any money to Tim Ryan (Ceol) at Simplifi read this:


The DSPeaker Anti-Mode X4 is finally here. Quantities are limited but we have both black and silver in stock for immediate shipment. 

The X4 is a full featured 4 channel remote controlled balanced preamp with exceptional DSD DAC and very high quality headphone amp. It will outperform most high end preamps as room correction is amazing and makes a far greater sonic upgrade than minor preamp differences. When combined with a great preamp and DAC the results are spectacular.

It has
7 digital inputs (3 coax, 3 optical and one asynchronous 32 bit 382k USB) and 3 analog ins (2 RCA & one XLR). It features a large internal power supply. It can be used as hi-end room correction only, a preamp with room correction or a preamp with DAC and room correction. It is a major step up over the original DSPeaker Anti-Mode 2.0 that we sold over 300 of. That product was and still is a revolution at its price. It was rated Stereophile Class A as well as receiving a Golden Ear from The Absolute Sound.

The 4 channel X4 can run subs and mains or be used to actively bi-amp your speakers. It has an internal parametric EQ and 6 presets for different tonal balances or for correction at different seating positions in the room. 

 It does automatic room correction with its included mic

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 of decibels or even more. These errors are most pronounced in 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 is capable of perfecting the acoustic performance of any full-range stereo audio system. It is based on the 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.

Call us to discuss the superb preamp with DAC, electronic crossover and room correction. We offer full support for any units we sell.


Technical Specifications

Digital Specifications

DSP Cores:

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

DSP Firmware:

  • 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


  • 18.1" wide x 2.91" high x 12.3" deep


  • 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

Read our AudiogoN #1 rated over 13,000 points of feedback and call us with questions at 770-667-5633
We accept PayPal, Visa AMEX, and MasterCard as well as money orders.
GA & HI residents add sales tax.

Brands carried:
Acoustic Zen, Audio Space tube electronics, Audeze headphones, Auralic streaming devices & DAC's, Bob Carver tube amplifiers & Loudspeakers, Burson Audio, Creek, DSPeaker room correction devices, EAT turntables, ELAC speakers & electronics, Emerald Physics speakers, amplifiers & Digital crossovers, Epos, Focal headphones, Gallo speakers, Graham Slee, HifiMan headphones, Iso-Acoustics, Jolida tube electronics, LSA Speakers, Marantz Reference, Micromega, Mofi turntables & phono stages, MrSpeakers headphones, Musical Fidelity, Music Hall, Ortofon cartridges, Outlaw Audio, Peachtree Audio, Project turntables, PS Audio, Quad, Scansonic speakers, Spread Spectrum Ampzilla amps & preamps, Sumiko subwoofers & cartridges, Sweet Vinyl, Syzygy wireless subs with room correction, TriangleART turntables, Wireworld & Wywires cables

Sales policies on the Underwood Hifi Inc. website at www.underwoodhifi.com

underwoodwally member since July 2000

Underwood Hifi, Inc.  Verified Dealer
Last 12 months
Items from this seller