Yes, I can imagine that is where TotalDAC sits. Trouble is I can't get to try one without paying the 100% cost first (10 day return deal). My thoughts are my Audio Note DAC 4 which is tweaked up may well be close to the Audio Note DAC 5 Special. How far ahead the TotalDAC will be I have no idea. A lot of the impact and sound improvements from users here sen to be folk leaving the DS camp and entering the R-2R camp. I am interested in hose who have heard other top R-2R DACs alongside the TotalDAC. My curiosity over the MSB may be the wrong road for me on reflection. I don't need more detail as that could start to sound unreal and digital. I note that MSB has taken a rather risky strategy recently and dropped the Platinum IV unit which was around 10K. So they now go from the Analogue DAC at 8K to the 24K Signature DAC. Seems like they have lost a busy middle budget area there IMO. On TotalDAC, has anyone heard the D1 Single to the D1 Dual, or D1 Six, and how is the more costly DACs sound different? I can never afford a Six, maybe not a Dual either unless used, but the Single is attractively priced. But not if it is well below the Dual for example. Any insight would be very useful to me.