Which is the better PSU for T-amp?

[:tom:germany:]

Hello
I've posted that question some days ago in the thread "sound of a psu" too. But cause there was no answer I will try it with a own thread now ;-).
I'm just searching for a SPS for my T-amp (AMP3 from 41Hz.com).
The reason is cause my self builded regulated PSU don't work proberly and I also read that SPSs should sound better with t-amps.
I've found two SPSs now:
http://www2.produktinfo.conrad.com/..._SPS_060_15.pdf
http://www2.produktinfo.conrad.com/...ZTEIL_LPS64.pdf
Voltage, ripple and load are the same. The main differences I can see are efficiency, adjustment range and switching frequency.
Cause of the better efficiency, the higher adjustment range and the cheaper price (45 instead of 55 Euros) I would prefer the first one.
But how important is the switching frequency. The first one I prefer has 50kHz but the second one from ASTEC has 110kHz??
Is that important and if yes which one would be better and why would it be better?

many thanks Tom

[BWRX]

Originally posted by :tom:germany:
The reason is cause my self builded regulated PSU don't work proberly and I also read that SPSs should sound better with t-amps.

I'm gonna go ahead and say that you shouldn't believe everything you read Having said that, you can build a small regulated linear supply for less, but go ahead and try one of the SM supplies and see how you like them. Many people like the sound with a switching supple but bear in mind that they aren't all created equal.

[:tom:germany:]

Thanks for the answer!
What means SM supplies, maybe "switching mode"?
And what frequency woul be better now, 50kHz or 110kHz?

many thanks Tom