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Router + Gigabit Switch Linear Power Supply

(1 customer review)

Price range: £235.00 through £430.00

MCRU and Longdog Audio regulated linear power supply for internet routers, wireless routers and gigagbit switchers such as Netgear. Please note we do NOT sell the router itself just the power supply.

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Description

With many hundreds sold globally our linear power supplies so one thing well, improve the sound quality of anything attached to it. Proven by 100’s of satisfied customers. Internet routers and ethernet gigabit switchers are no different, they are usually powered by a 12V DC nasty wall wart power supply which is proven to inject interferance into your system and degrade sound quality as a result.

The Longdog Audio fully regulated design feeds your equipment with 12V DC of the purest quality mains possible. Similar to a battery power supply but far more convenient for obvious reasons. The sonic improvemenst can be startling.

The standard unit has a 2.1mm DC power plug fitted and outputs 12V DC up to 1 amp, it fits 90% of routers such as Netgear, we can provide different sized DC plugs and outputs on request.

The power supply is available as 230V input for Europe, 120V for USA and is supplied with a basic power cord to suit your country, UK | EU | USA | AUS etc.

The designer Nick Gorham’s thoughts on the power supply design……

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.

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Price range: £295.00 through £795.00

Available Models

OPTION ONE – Standard Model – Basic mains lead £295.00
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OPTION Four Pure Silver DC Cable, Furutech Rhodium plated IEC inlet, SR Pink fuse, MCRU No. 75 SE mains lead to suit your country, Black Ravioli support stand £795.00
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OPTION ONE – Standard Model – Basic mains lead £295
OPTION TWO Kimber DC Kable, Furutech Gold plated IEC inlet, AMR Gold plated fuse, Puritan audio classic mains lead to suit your country  £395
OPTION THREE Pure Silver DC Cable, Furutech Rhodium plated IEC inlet, SR Orange fuse, MCRU mains lead to suit your country £655
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Select options This product has multiple variants. The options may be chosen on the product page

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Router + Gigabit Switch Linear Power Supply

Price range: £235.00 through £430.00
MCRU and Longdog Audio regulated linear power supply for internet routers, wireless routers and gigagbit switchers such as Netgear. Please note we do NOT sell the router itself just the power supply.
Select options This product has multiple variants. The options may be chosen on the product page

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Select options This product has multiple variants. The options may be chosen on the product page
Reviews (1)

1 review for Router + Gigabit Switch Linear Power Supply

  1. ritchieblackmore65 (verified owner)

    Having been familiar with Power supplies for Hi-Fi equipment since the very early 90’s and now having bought myself into modern times streaming more and more I see the router as a source (Just like a turntable or CD Player) so I decided to buy this as it just makes sense, (cleaner electricity, cleaner sound).
    WOW!! for the money I felt I had more than value for money. Sound for my Hi- Fi streamer (Oppo sonic dac) and even Picture Quality for TV (LG Oled) was instantly noticeable better.
    Trust me I’m no fool and I’ve seen and heard a lot of nonsense in the the sound and vision industry.
    In a nut shell I would strongly recommend this Product as I have stated cleaner electricity cleaner sound and even Picture quality.
    To Put icing on the cake David is a Great Guy to buy of with straight answer’s to straight Questions and a fast delivery and and after sales service.

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