DSPeakerAnti-Mode 2.0 Dual Core newRoom Correction preamp with DAC at our Sale dealAsk us about 6 months NO INTEREST thru PayPal Free freight in the USA at $799.00 price My latest DSPeaker customer emailed: Hi Walter, I just got around to hooking up the rep...799.00

Room Correction preamp with DAC at our Sale deal [Expired]

no longer for sale

       Ask us about 6 months NO INTEREST thru PayPal

      Free freight in the USA at $799.00 price

My latest DSPeaker customer emailed:

Hi Walter, I just got around to hooking up the replacement DSPeaker 2.0, we now have a stay at home Governor’s order in Oregon.

I ran the the calibration per the instructions. The sound of my system was transformed from good to spectacular. The DSPeaker 2.0 is a sensational product. 

The DSPeaker 2.0 is not an accessory, it is a mandatory piece of gear for all hifi systems!

Also, thank you for your excellent service in addressing the defective DSP, and promptly replacing it. Your service is impeccable, and honesty beyond reproach!

Please feel free to use my experience as a reference for customers who are considering a purchase.

Best regards, Bennett

Here is another customer email:

"I’m astonished how full the Magnepan .7’s sound with the Nova 150 combined with the DSPeaker.  The bass response in particular is blowing me away.  There may be tube amps in the world which can drive Magnepan’s, but when people say the speakers need high current SS, they ain’t jivin’.  As "good" as my tube amps are, there is no comparison."


"Your suggestion of running up to 500hz was a very good one. In my situation, it made a significant improvement over the "typical" sweep "

Almost every audiophile need bass room correction. Plus exceptional tone controls. Now shipping from stock typically within 1-2 business days of order. Was rated Class A in Stereophile.. Golden Ear award winner in The Absolute Sound.

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 the Dual Core Anti-mode DSP.


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:

Now shipping the 2013 model with Asynchronous USB and higher gain. Read the killer review in The Absolute Sound. They said: "it is Alladin’s Genie except that you get a lot more than three wishes!" Dr Robert E Greene

They gave it a Golden Ear award. In their recommend components issue they also gave it a great write-up.

Stereophile has also wrote it up as a superb value.

See the superb full review in the February 2013 Absolute Sound where Robert Greene summed up with: “in the end you can get truly remarkable sound out of a system corrected and adjusted with a Dual Core. 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.”

Anti-Mode 2.0 Dual Core ($1099.00) 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 below 500Hz or as room correction plus preamp plus DAC. It also has a full parametric Equalizer and excellent tone controls. It is not only a new generation automatic room correction device 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 software accompanied by a professional level sound card 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. The Anti-Mode 2.0 Dual Core can be connected to almost every audio system.

It is the following 5 products all rolled into one small high performance package:

1) Automatic digital room correction device

2) Parametric Equalizer

3) Super flexible tone controls that are controlled by the remote control

4) Remote controlled balanced preamplifier

5) High quality DAC with Asynchronous USB and Toslink inputs


Anti-Mode 2.0 Dual Core is a must-have device for any audiophile who is serious about the sound quality in home environment. The 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 a dozen dB or even more. These errors are most pronounced at the bass and lower midrange regions, where the classic acoustic treatment loses its effectiveness.

The Dual core is based on DSPeaker’s Anti-Mode 2.0 algorithm which refines their original, award-winning, Anti-Mode algorithm even further. Anti-Mode 2.0 Dual Core can be connected to almost every audio system.

The Owner’s Manual is available in PDF file here: AntiMode20DualCoreEng.pdf .

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 (Asynchronous) 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 DAC’s 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

-Analog resistor network volume controller to ensure full digital precision

-Extensive sound customization options, including quick house curve design tool, linear-phase full spectrum tilt, several parametric EQ’s etc

-Supports several sound profiles (e.g. independent ”sweet spots” and/or equalizer settings), quickly switchable with the remote control

-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 preamp 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)

Read our AudiogoN #1 rated 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: Audio GD electronics, Audio GE Teddy speakers, Black Ice Audio tube gear, Bluesound music streamers & servers, Bob Carver tube amplifiers, Burson Audio, Core Power Technologies A/V power conditioners & cables, DSPeaker room correction devices, Earmen portable products, EAT turntables, ELAC Speakers, Emerald Physics speakers & amplifiers, Focal headphones, HifiMan headphones, Iso-Acoustics, LSA Speakers, headphones, electronics and turntables, Marantz Reference, Martin Logan speakers & subwoofers, Melco streamers, MOFI turntables & phono stages, Musical Fidelity, Music Hall, Ortofon cartridges, Peachtree Audio, Project turntables, Quad, Raal headphones, SPL Electronics, Sumiko cartridges, Sweet Vinyl, Wireworld & Wywires cables, Zesto Audio

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


member since July 2000

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