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Re: RAKK DAC on Batteries

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Rafal

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In Reply to: RAKK DAC on Batteries posted by mourip on December 13, 2004 at 11:50:08:

I have tried AC, 12v battery straight to the RAKK-DAC and 18v battery through the minimal reactance supply. To my ears:
In order I prefer
18v through reactance supply
AC
12v direct to DAC board
With the 12v the background is blacker but there seem to be some slight veil in the midrange.
With 18v the veil is gone.
Not sure why battery with the regulator is better.
I run lead acid battery (12V+6V) with 10,000uf capacitor in parallel.
Would be interesting to try separate supply for Tent XO-DAC clock.

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Re: RAKK DAC on Batteries - Wongstein 16:37:20 08/10/05 (0)
Hi, this thread is a little old, but I just got my RAKK DAC without the Tent clock and I'm loving it. The Tent clock is on my aquisition list, and after that I want to play with power supplies. I'm interested in powering the DAC chip separately from the receiver chip and the Tent clock. Any thoughts?
Can anyone share some plans for a charging battery system? I think I like the idea of 6v+6v+6v regulated down to 12v.
Thanks very much,
Anthony
Re: RAKK DAC on Batteries - Pooge 20:36:28 12/15/04 (0)
"Not sure why battery with the regulator is better."
It might be due to regulator lowering the output impedance of the power supply. Just because a battery doesn't have AC doesn't mean it is inherently better. Batteries can have high output impedances.

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