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Gieseler Audio

Low noise power supplies, 5v, 9v & 12v.

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What do I think? .................. I think you should have posted this a week ago .............. before I ordered the HDPLEX ..................... :( :( ............ :) :)

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Very timely for me too!

Wouldn't a nice (read sexy) vented box with heatsinks be a good idea, even at low current outputs? For those in the tropics of course - we others would just have to stare glassily at it and just know how cool it is.

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Hi,

Good project!

Re the 16v 2.5A AC supply, the maximum DC load current available will be 1.5 amps.

Cheers

John

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Hi Rab,

Sotm mods as follows.

​Replace all the 470uf 16v (9x) generic electros with Panasonic FM series

http://au.element14.com/panasonic-electronic-components/eeu-fm1c471l/aluminum-electrolytic-capacitor/dp/1219462

I would have liked something better but not enough room.

Replace the 3 X 1uf film caps, 5 mm pin pitch so no drop in polypropylene but at least these are only 7.5 pitch 

http://au.element14.com/panasonic-electronic-components/ecw-fd2w105j4/film-capacitor-1uf-450v-5-radial/dp/2413398

Bit messy for me though so I would just go with a good Wima polyester

http://au.element14.com/wima/mks2c041001f00kss/cap-film-pet-1uf-63v-rad/dp/1006040

Now the really good part! Replace one of the USB sockets with a Wurth Electronics filtered types.

http://au.element14.com/wurth-elektronik/8492121/conn-usb-2-0-a-w-esd-emi-filter/dp/2442757

This is like adding a jitter buster but only costs $17

Now the credit for these tips must go to Tam Nguyen from the building the ideal(ish) Music server thread. How much better does it sound? Well I haven't had time to fully evaluate it yet as I only did it this morning.

John, thanks for the current rating tip, I will do some real world testing next week on that external transformer.

cheers  Clay

Edited by Gieseler Audio

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Hi Clay,

Registering my interest in a +/-12v and +5v dc supply. ~2-3A would be good. Would like to use it for a Najda DSP module. Could also use it for a miniITX/ppa usb card setup.

Cheers!

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Hey just found this

http://www.tortech.com.au/power-supply-australia/ac-power-supply/Input-240v-50hz-output-15v-ac-5amp-ac-power-supply

15 v 5A AC output, looks like it would do the job nicely where you need a bit more current.

Edited by Gieseler Audio

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If you were to design an 18V, 1000mA unit, I'd be keenly interested!

Sent from my iPad using Tapatalk

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Just thought I'd be the first to ask a standard newbie question but what exactly is the purpose of these low-noise power supplies and what do they go with?

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Just thought I'd be the first to ask a standard newbie question but what exactly is the purpose of these low-noise power supplies and what do they go with?

I cant tell you the technical terms, but the theory is that the power you feed your equipment with has an influence on the sound.. Computers were not designed for music, so by improving a few things in there it gets better. These power supplies can power a dac, or a computer and or parts thereof, a hard disc, a usb/spdif converter, a music server etc. 

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