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Linear Power Supply for DSPeaker Anti-Mode 2.0 Dual Core DAC

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

From: £235.00

Fit and hear the improvements!

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Special Offer add our recommended power lead up-grade the IsoTek EVO3 Initium to your order and you will get £25 off the retail price of £75 (you will pay £50) available while stocks last.

MCRU and LDA present our fully regulated linear power supply for the DSPeaker Anti-Mode 2.0 Dual Core DAC/room equalizer. This is a multi award winning design of power supply which replaces the wall wart brick to provide a regulated 12V DC current to the DAC. Fitted with a power cable to suit your country as standard UK, EU, USA, AU and available in 240V or 120V. 

The Long Dog Audio designed power supply has been reviewed by Hi-Fi Choice and given it’s top marks of 5 stars, sound quality improvements are immediate, 100’s of happy customers testify to the power supply’s ability. The unit simply plugs into your DAC using the supplied Oyaide audiophile gold plated DC plug, no on-off switches to degrade sound quality, a power cable is supplied and that is all you need to do, plug it into the mains and enjoy.

A word or two from the designer Nick Gorham about the power supply….

When thinking of regulation, it’s worth remembering the Roman god Janus. Who was the god of gateways, and was a two faced god looking in both directions. Likewise a good voltage regulator is required to look in both directions at once. From one direction you have the mains supply, with the ever increasing noise, distortion and random variation that exists on our household mains supply. In the other direction you have the device you are supplying power to. The load will be asking constantly varying current, and the job of the regulator will be to ignore the varying load and to supply a rock steady voltage that ignores the changing load.

To ask a single regulator to perform both tasks means that it can not do either as well as it could. We don’t ask our regulators to be two faced, we split the two functions into two separate regulators and put them both where they can do the best job.

The first regulator is close to the mains supply, its job is to take the incoming mains and convert it into a low(ish) noise DC supply, and to isolate the mess that is our household power lines from what follows. In most power supplies on the market, the output of the first stage would be directly connected to the load device, and that would certainly be an improvement over the supplies that most manufactures provide. But we can do better by adding the other face of Janus to the system.

The second regulator is supplied with a clean low noise supply, and its job is to handle the changing demands of the load. To do that, it needs to be as close to the load as possible. So we remove the second regulator from the main box, and place it close to the load, both electrically and physically, that removes it from the noise and interference of the mains supply, and allows it to spend its time looking towards the load. Typical commercial voltage regulator chips are general purpose devices, but are not quiet enough for the task on hand, so the second regulator uses a bespoke regulator based on a low noise multi stage filtered voltage reference, a low noise error amplifier and a high current low resistance mosfet. To allow it to handle the changing load it also needs to supply current on demand, so all the remaining space in the second regulator is filled with low impedance capacitors to act as a local energy source.

Using the two stages of regulator, we achieve a noise floor equal or better than most battery supplies, and a effective source resistance of the order of 0.02 ohm (and the short cable run to the load avoids increasing this valve by adding copper where its not needed, and the use of a discrete regulator design allows that tiny value to be maintained way above frequency any audio device operates at.


Reviews (1)

1 review for Linear Power Supply for DSPeaker Anti-Mode 2.0 Dual Core DAC

  1. Rated 5 out of 5

    frederic rome (verified owner)


    “I’m an happy owner of this magic box, the Dspeaker anti-mode dual core 2.

    Low frequency correction is amazing in my room!

    I was just a bit disappointed by the little noise noise on the analog output and feel the sound a bit “cold” in my opinion.

    I thought maybe could be usefull to upgrade the “cheap” power supply to get the sound even better.

    So, I’ve just upgraded the std power supply to this linear PSU and the slight “coldness” is now warm and detailed. Fit and finish is really top-end.

    Unfortunatly the little noise on the analog output is still present.

    The sound difference is night and day, and really worth the money. Keep in mind it’s one of the most affordable PSU for this magic box.

    Highly recommended!”

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