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That's a shame. I wonder if @@Gieseler Audio would be able to do a DC version without too much difficulty? I'd say there is a decent market for people who would like to use external PSUs...

 

Regards,

 

Chris

Edited by Juicester

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I suspect that a good part of the Dacs performance is due to the power rectification/regulation designed within it. Having not heard this Dac it's pure speculation on my part, but I do know how important power delivery within digital circuits is.

 

AJ 

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Hi Juicester,

Spyne is absolutely correct in that my DAC needs a AC supply. The reason for this is that internally the Klein has eight different regulated supplies & four of these have there own SIC/Schottky rectifiers setups.

To try & run the DAC with a single DC input would severely compromise & cripple the performance. Also the output stage uses + & - 12 volt supplies, difficult to implement well with a single DC input supply.

The current power pack is way over specified at 2.4 Amp, the DAC only draws abut 650 MA & with a class A output stage current draw does not vary much. As an experiment I compared a huge RS components IE core transformer

to the plugpack I use & had great difficulty hearing any difference.

I hope this has answered your question.

 

Regards,

 

Clay

PS thanks AJ - absolutely spot on!

Edited by Gieseler Audio

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I suspect that a good part of the Dacs performance is due to the power rectification/regulation designed within it. Having not heard this Dac it's pure speculation on my part, but I do know how important power delivery within digital circuits is.

 

AJ 

Precisely my point. As good as the little power pack is; I'm very doubtful it's as good as my external linear PSU.

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Precisely my point. As good as the little power pack is; I'm very doubtful it's as good as my external linear PSU.

Juice an external ac powerpack is usually just a transformer. So my understanding is that the Klein dac has it's own sophisticated and dedicated Linear psu with external transformer, making an external linear psu irrelevant.

Edited by Ozcall

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Juice an external ac powerpack is usually just a transformer. So my understanding is that the Klein dac has it's own sophisticated and dedicated Linear psu with external transformer, making an external linear psu irrelevant.

 

I'm attached to mine though....

kecesdc116_002.jpg

 

Anywho - thanks for the answers; and congrats on what seems to be a Giant Killer @@Gieseler Audio

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I suspect that a good part of the Dacs performance is due to the power rectification/regulation designed within it. Having not heard this Dac it's pure speculation on my part, but I do know how important power delivery within digital circuits is.

 

Having chatted to Clay about how he designed this DAC its secret sauce is indeed its power supply.  Clay has put a lot of work into it.

 

Thanks

Bill

Edited by bhobba

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How are you guys finding the filter switches?

Any prefered settings?

I find in my well damped room at home both up works best but say in a tiled room both down is better.

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Picked up a Klein DAC yesterday so it's still early days.

 

But first impressions...

 

It's very natural sounding and not overly etched or detailed.

 

Only tried the USB input so far and it's better with my iFI iUSB power.

 

I didn't like up sampling with Audirvana.

 

I prefer the filter switches both being up.

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