For NAS drives + Music Servers

MCRU 12 Amp Regulated Linear Power Supply

New product


New design from Longdog Audio's Nick Gorham, fully regulated linear power supply very low noise to power equipment up to 12 amps x 12V DC. Terminated as standard with an Oyaide gold plated DC power plug, compatible with a wide range of equipment.

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NAS drives, music servers and any equipment that is powered by the dreaded wall wart switch mode power supply will suffer as a result. It is well documented that SMPS injects interferance into the mains system and into your equipment itself, vital sound quality will diminish, there are so called "bench power supplies" which provide a stable output but they are not as good as a fully regulated linear design as most are industrial in nature.

The Longdog Audio XLCR power supply has been designed from scratch by Nick Gorham to power any equipment that requires up to 12V DC and up to 12 amps such as the Naim Unitiserve and the Ripnas Statement. Nick has been designing power supplies for MCRU for over 3 years and in that time we have sold well over 1000 power supplies with many being reveiwed in the hi-fi press and ALL the ones submitted gaining the maximum 5 stars.

The casework is 207mm wide  x 315mm deep, the rear panel as a fused IEC inlet and an IsoTek EVO3 Premier power cable to suit your country (UK | EU | USA ) is included, we build to order so please allow 5-7 days for construction and testing, 120V ad 230V versions available and we ship to any country worldwide.

The XLCR power supply simply provides the cleanest supply of voltage possible, sound quality will improve or your money back, no quibbles. Supplied as standard in a silver or black case designed and built in the UK, available with optional up-grades to futher enhance performance, this power supply will enhance your listening pleasure.

Please note the power supply is also available housed in a streacom case to match music servers.


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By (Norwich, United Kingdom) on  11 Nov. 2016 (MCRU 12 Amp Regulated Linear Power Supply) :

Is your audio server delivering all it should?

In December 2009 I took my first steps into the world of dedicated computer audio when I bought a RipNAS Statement, which has been used as an audio-file server running JRiver Media Center in Library Server mode.

I found the RipNAS quiet enough to install it in my main listening room, connected to various dacs across the years. The biggest change was the purchase of a Devialet D-Premier – now upgraded to a Devialet 250 currently with direct usb connections between the two.

But all good things must end and after 5 years the hard-drive started to fail and then the external power supply failed.

In order to resurrect the system I plunged for a new psu from mcru – the 12amp fully regulated linear power supply designed by Longdog Audio's Nick Gorham. It is the third item on this page,

although mine is housed in the full width Streacom FC5WS Evo Fanless Chassis to match the RipNAS. (as shown as the top unit in the second photo). That is another customer’s RipNAS at the top of the page.

And the difference it makes is little short of a revelation. The Devialet is an excellent dac and amp, resolving an amazing amount of detail. Audio reviews often describe equipment as if supplying macro level focus. I prefer to describe the effect as one of providing full unravelling or separation between all of the voices and instruments. To rephrase the focus comment, it is as if everything is visible and all simultaneously in focus – but audibly rather than visually.

And the mcru psu performs the same role with great certainty. Musical passages reappear as they were on the day they were captured in the studio or on stage.

I used to flinch when I read that the musical soundstage had become so wide that it now extended outside the speakers and indeed beyond the walls of the room, but now I experience that too. My conclusion is that this high degree of separation is responsible for this apparent magic. There are simply so many audible strands that each needs to find its own place beside each other, and our brain interprets separation this as ‘width’.

I was never a total sceptic of the need for good clean power supplies, and computers are notoriously fickle in this respect, but it is truly surprising to witness the degree of difference that a high quality regulated linear psu can make to a well sorted server playing via Media Center.

And if, like me you have not embarked down a route where the server came from a company also renowned for its power supplies, then put a mcru psu at the top of your audition list. “£975 for a power supply – that’s way too expensive”. No £975 is a small price to pay for this sort of result, and way cheaper than some other big names out there.

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