home made PSU query....

Discussion in 'Hi-Fi and General Audio' started by mr cat, May 9, 2005.

  1. mr cat

    mr cat Member of the month

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    I've just bought a dac and I'm after a suitable PSU, I've done a search on the web and came up with this - http://www.rock-grotto.co.uk/x-psu2.htm

    I've tried to e-mail the guy - no luck yet, but the other pages aren't valid so I'm won't hold my breath...

    do you think it's worth building..?
    if so, anyone here willing..? ;)
     
    mr cat, May 9, 2005
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  2. mr cat

    T-bone Sanchez

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    You could do alot better than that seems nothing more than a transformer in a box, no rectification, smooting etc. Whats the dac?
     
    T-bone Sanchez, May 9, 2005
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  3. mr cat

    mr cat Member of the month

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    it's a Music Musical Fidelity X-ACT DAC - picked it up from fleabay the other week...
     
    mr cat, May 9, 2005
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  4. mr cat

    T-bone Sanchez

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    What a coincidence it says that in your kit at the bottom.

    I dont know the circuit for that DAC. Is it AC or DC input?
     
    T-bone Sanchez, May 9, 2005
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  5. mr cat

    Sid and Coke

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    Whatever you do don't spend lots of cash on an X-PSU you will get.. a transformer in a box that does absolutely nothing to improve the sound. The Guy who runs the the Rock Grotto website is a very friendly fella by the name of Mike. He also uses these online discussion forums and goes by the handle of Pinkfloyd , often to be found over on PFM, Headwise, etc.
     
    Sid and Coke, May 9, 2005
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  6. mr cat

    Lt Cdr Data om

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    yes, xpsu is just a toroidal transformer, cheap one at that, toroid international.
    nice box tho' bit like ferrero rocher and david becham, both cum in a posh box :eek:
     
    Lt Cdr Data, May 9, 2005
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  7. mr cat

    mr cat Member of the month

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    ok, cheers for that guys...so, is it worth getting any PSU for it then..?
     
    mr cat, May 9, 2005
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  8. mr cat

    Anex Thermionic

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    A bigger VAC rated transformer may help. Thats similar to the michel Hera stuff, the ISO HR supply is just a big ass transformer in a box afaik.
     
    Anex, May 9, 2005
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  9. mr cat

    Sid and Coke

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    I bought an X-PSU a while ago to use with my X-Can headphone amp.I tried and tried to hear a difference betweeen the X-PSU and the standard wall-wart type supply and was just completely unable to hear even the minutest amount of improvement to the sound. The only advantage that i could see was if you owned 4 different X-Ponents. In this case an X-PSU is ideal as it can power 4 x X-Ponents at the same time, which is probably better than having 4 seperate wall-warts in use. Obviously another advantage of owning an X-PSU is that they do look seriously cute in a purely Hi-Fi 'pride of ownership' sense.

    I sold my X-PSU on, making a small profit into the bargain and made myself a clone of the X-PSU as per Pinkies instructions on Rock Grotto. Again I couldn't detect any sound improvements, however for the sake of the few hours that it took to make and the modest cost ( circa £30 against the going rate for a s/h X-PSU of circa £160+ ) I considered it time and money reasonably well spent. This is a hobby after all.
    I don't think i would bother repeating the exercise though.. Another small advantage of the X-PSU is that it adds an on-off switch into the power circuit enabling the X-Ponent to be switched off, this can easily be done with a wall-wart by adding an in-line single or double pole light cord switch into the long power lead.

    Here are a few photo's of my own : http://imageevent.com/sidandcoke/sidsypsu
    http://imageevent.com/sidandcoke/musicalfidelityxcanv1mods

    Hope this helps and good luck ....
     
    Sid and Coke, May 9, 2005
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  10. mr cat

    mr cat Member of the month

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    cheers sid and coke - you've just saved me a bit of cash..! I'll do without!

    thanks again
     
    mr cat, May 9, 2005
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