Caiman PSU

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Originally Posted by Fi-Wi

What?! Shame on TNT to deliver to Nootdorp first before De Bilt! ;)

Still in suspense.

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You folk should be supporting Philips of Eindhoven!

Well Brian, that is not done in non-PSV crowds. :lol:

Wee question?

Stan said the Psu works well with the 7520, so I take it there's no problem running a 7520 modded with Wolfsen Dac and opamps at 15v either?

Ta.

I was wondering about running at 15v also. I thought that if the input caps were 16v the rule of thumb is to peak at 10% less. Certainly the 7510 is 16v but Stan possibly has uprated the 7520 and Caiman to 25v. I will have to take the lid off to have a look - and break Stan's special warning sticker!

Regards

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Originally Posted by bergdus

Got my PSU today (Dank Stan,)

first impressions, boomy not very defined bass, therefore missing the insane linear transparancy, closer to voices but a more narrow sound stage

listening both PSU,s A/B at this moment I do appreciate the non caiman psu more.

Maybe i'm to fast, to greedy, maybe it's also room acoustics,



Ron

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So it was too fast, to greedy

Indeed a more fullbodied sound without being overblown. with a nice big stage and after a night of intensive listening, no sign of fatique.

So Stan, another opportunity missed to refund!!

Ron

I return to an earlier point. Any honest appreciation of the Caiman Supply must compare it with the Caiman DAC running with another competent 15v supply. The extra 3v might alone be responsible for the improvement in the Caiman.

It may be an academic point, for Stan's Caiman Supply will probably cost less than a competing supply. I have an adjustable power supply lying around the house - I used it with the 7510 (at 12v), but will not risk trying the Caiman with it.

Others may be brave enough to try another 15v supply and report.

Anyone stupid enough to try out any such experimemt should make sure that the DAC is closed and the case securely screwed down. The power capacitor has a metal casing and in the event of it exploding the flying metal bits could form a danger.

A timely caution Stan.

And two straight questions from me to you.

Does the Caiman supply output 15v?

If so, does the extra 3v account for much of the improvement noted between the PSUs.

Sorry Brian, but I am unwilling to answer that question unless other DAC and power supply manufacturers disclose the reason why their upgarded power supplies work better. I invested a lot of time and £££ in my products and would not be willing to save anyone any money in their search for a similar outcome in their product development.

Didn't someone earlier hook the PSU up to a scope and compare the voltage output of the New PSU with the standard one?