K&K Audio / Lundahl Transformers

SB3

82.46.39.69

Hi

First post here. I was drawn to this forum by the prospect of the RAKK DAC.

I've recently purchased a SB3 and am already looking at upgrades. I've read various forums and one upgrade path suggested is to take the audio outputs direct from the DAC, bypassing the op amps and capacitors. I'm not to keen on this approach, but it got me thinking.

I've looked into the data sheets for the two DACs (PCM 1743 and 1794) and both appear to output similar voltages (3.1V P-P and 2v RMS). I'm looking to use the passive output stage from the RAKK DAC as an output stage for the SB3, directly from the output of the PCM1748. This would be done in conjunction with a XO-3 clock upgrade. The idea being that all parts can then be used in the RAKK DAC at a later stage.

I realise this will not provide the same results as the RAKK DAC but it may be a cost effective solution.

A few questions -

Does anybody know if this has been tried before.
Any problems foreseen
Will K&K sell the passive output seperately from the rest of the DAC

Dave

Follow Ups:

RE: SB3 - KevinC 05:38:33 10/19/07 (2)
- RE: SB3 - UK Dave 08:05:44 10/19/07 (0)
- RE: SB3 - AnandR 07:41:42 10/19/07 (0)

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