DSPeaker is a Preamp, DAC & room correction device in one package under $1200.00

Now with Asynchronous USB 

Just Class A rated in Stereophile

"...offers the wonders of DSP correction with ultra-high sonic quality"

"it is Alladin's genie except you get a lot more than three wishes!"

- Dr. Robert E. Greene / TAS September 2012 

See the superb review in the February 2013 Absolute Sound where Robert summed up with:
in the end you can get truly remarkable sound out of a system corrected and adjusted with a DualCore. One thinks of the introduction to The Three-Penny Opera: “Conceived with a splendor that only a beggar could imagine and ….so cheap that even a beggar could afford it.” Well, not quite that cheap. But still a wild bargain, and a sonic wonder.”

Read the full review in The Absolute Sound Magazine here: 

In Paul Seydor's Newport Show report from the 2014 show he says:
Most Significant Product: I can’t think of another investment that will bring more improvement in sound for the dollar than SimpliFi’s Dual Core Antimode DSP with or without the ULN-3 PSU optional power supply

Part Time Audiophile said:
And that’s when Walter showed the Ace he’d tucked up his sleeve: the DSpeaker Anti-Mode Dual Core 2.0 he was using as a preamp. Walter A/B tested this device for me, cutting the room correction in and out of the chain; the DSpeaker greatly cleared up the midrange and upper bass regions to an extent that I would have thought improbable. All I can say is: “more demo rooms at audio shows need this”. Assuming you don’t want to schlepp a couple hundred pounds of room treatments across the country, it really can nail down an unfriendly room, and do so with some shockingly great results. Wickedly cool.

Read the entire report at:

Paul Seydor from the Newport Beach show report in 2012 said:

Greatest bargain (single product)

DSPeaker Anti Mode ($1.1k)—a fully automatic room correction device (also DAC) that works spectacularly and at almost a chump change price.

Call to discuss into pricing and this amazing product.
The Updated '2013 Edition' is now available and shipping in 1-2 days from order date

$1099.00 with FREE FREIGHT in the lower 48 states

Anti-Mode 2.0 Dual Core ($1199.00) is a must-have device for any audiophile who is serious about the sound quality in home environment.It can be used as a room correction device belwo 500Hz or as room correctiuon plud preamp plus DAC. It also has a full parametric Equalizer for tonal balance control.

It is not only a new generation automatic room correction and one of the most versatile devices to adjust the overall tonal balance, but also a standalone room analyzer. With a press of a button, it offers the same performance and accuracy as the best computer based measurement softwares accompanied by a professional level soundcard and calibrated microphone. Of course, you can even export the measurement data using USB, but then again, you don't really need to. You can see the accurate response on screen, and all the important room corrections have been made automatically. It can run with your preamp and DAC or be used with an amp and speakers as the entire front end.

Anti-Mode 2.0 Dual Core can be connected to almost every audio system. 


• 2012 edition:
◦ Input Sensitivity RCA: 1.6 / 3.25 Vrms, XLR: 1.3 / 2.6 Vrms
◦ Output Voltage RCA: 1.65 Vrms (max), XLR: 3.25 Vrms (max)
◦ Power consumption 9VAC / 12VDC (typical): active 2.6W, stand-by 0.6W

• 2013 edition:
◦ Input Sensitivity RCA: 2.0 / 4.0 Vrms, XLR: 3.9 / 7.9 Vrms
◦ Output Voltage RCA: 7.2 Vrms (max), XLR: 14.4 Vrms (max)
◦ Power consumption 12VDC (typical): active 4.5W, stand-by 0.8W

Features include:

  • New, improved Anti-Mode 2.0 automatic room correction algorithm
  • Can be used as a locally clocked high quality jitter-free DAC
  • Supports USB audio as well as S/PDIF input/output via optical toslink
  • Dual balanced ADCs to deliver the highest level of audio performance that meets the expectations of most demanding audiophiles
  • Dual per channel balanced DACs with jitter free operation (local crystal), oversampling to 6144 kHz, DSP buffering and filtering.
  • Can be used as a high quality pre-amp with remote volume control
  • Extensive sound customization options, including quick house curve design tool, linear-phase full spectrum tilt, several parametric EQs etc
  • Supports several sound profiles (e.g. independent ”sweet spots” and/or equalizer settings), quickly switchable with the remote controller
  • Friendly graphical user interface, very easy to set-up and operate
  • Ability to measure and display room responses on a built-in 262k-color TFT display
  • ”Pure digital” mode using S/PDIF input & output: signal is processed in the digital domain all the way (S/PDIF output resolution is independent from input)
  • Digital signals are re-aligned for jitter-free operation
  • Versatile connectivity: insert Anti-Mode 2.0 Dual Core between your existing pre-amp and power amplifier or powered speakers or utilize the processor loop or tape loop of your integrated amplifier (or use it as a standalone DAC / preamp!)

  • 1) The NEW Simplifi Audio designed ULN-2 PSU improves all aspects of the Dual Cores performance including Analog in/out , USB DAC and SPDIF in/out.The ULN-2 has been under development for over 9 months and consistently betters an 18 Amp Battery Reference in Blind tests. It does require about 200 hours of play to fully break the caps in for ultimate performance. 

    2) The Wyred4sound uLink USB to Toslink Converter powered by the ULN-2 provides stellar HI-REZ 96Khz Computer Audio Playback.

    $899.00 or $799.00 if purchased with the DSPeaker at $1,890.00. The Wyred USB to SPDIF converter adds $299.00 if needed and it goes inside the ULN-2 power supply
     ULN-2 power supply under DSPeaker with battery reference next to it
    • includes 5 ft Captive AC cable with fuse to power the ULN-2
      - includes short 12 Captive DC cable to power the internally fitted Wyred4sound uLINK.
      - includes 5 ft Captive 12V DC cable with 5ft Toslink cable in the same harness to the Dual Core
        (this is the recommended cable by DSPeaker and is a $25 value)
       UPGRADE to a 5 ft. 470 strand Glass Fiber cable for only $79

                              ?? WHY CAPTIVE CABLES ??

      EVERY CONTACT in a system IS A SOURCE OF LOSS OR FAILURE ... the Best Contact is NO contact !! These are soldered right to the board for the best connection.

                   ?? WHY a CHEAP LOOKING PLASTIC CASE ?? 

      SIMPLIfi searched far and wide for a Plastic Case which had a similar footprint to the Dual Core... WHY ??

      Many of the best sounding audio equipment use NON-Metallic cases..... there are very good scientifically based reasons for this !!
      Think of the ground wires in your walls as antenna harvesting RF Noise which you BRING into your PSU and Audio cables by connecting your units to ground !!

      USE of a NON-METALLIC case allows us to avoid this source of audio contamination & to SAFELY lift the Ground! 
           Closeup of rear with cables
    Customer feedback on the ULN-2 power supply
    Rich-Hi, Walter – I got the power supply yesterday, and it is wonderful.  I had been powering the Anti-Mode from one outlet of a Bel Canto VBS, which was an improvement over the stock supply, but the ULN-2 results in a transformation!  Quieter, greater soundstage depth, more impact – everybody using an Anti-Mode in a high-end setup needs this.  Thanks for recommending it.
       DSPeaker Connections   
  • 1 x RCA inputs
  • 1 x XLR inputs
  • 1 x RCA outputs
  • 1 x XLR outputs
  • Toslink S/PDIF digital input
  • Toslink S/PDIF digital output
  • USB
  • Datalink
  • Microphone jack
  • 12VDC/9VAC power connector

Technical Specifications

Digital Specifications

DSP Cores:
  • 1 x VS1000 (GUI&USB)
  • 2 x VS8053 IceDragon (Audio)
  • 40-bit, 2-channels
DSP Filters:
  • Anti-Mode 2.0 Multi-Rate (FIR & IIR)
  • House Curve filter
  • Linear-Phase Tilt
  • Parametric EQs
  • Adjustable Infrasonic
  • Adjustable cross-over

Analog specifications

  • Dynamic Range: > 108dB
  • Volume Control Steps: 0.5dB
  • Input Sensitivity XLR: 1.35/2.60 V(RMS)
  • Input Sensitivity RCA: 1.65/3.25 V(RMS)
  • Output Voltage Unbalanced RCA: 1.65 V(RMS)
  • Output Voltage Balanced XLR: 3.25 V(RMS)
  • ADC: 6.144 MHz oversampling dual per channel
  • DAC: 6.144 MHz oversampling dual per channel, local clocking, buffering
    The original Dual Core had the standard / typical RCA and XLR input / output sensitivities which worked fine with sources and downstream devices which adhered to these standards.

    Based on customer feedback and to cater for a wider range of sources and down stream devices DSPeaker have now increased both the input and output sensitivities....

    If you are an existing Dual Core user and did not encounter ' input clipping messages ' this upgrade is likely of  NO BENEFIT to you.