Fitted the Dexa's myself and very happy to see the back of that annoying background noise

Dont know about temps or anything, but MartinT has been running the Dexa's for some time now without any heatsink.
Good question about the R1 wire link, I've removed the resistor in my Dac and the regs seem to work fine?
Would it better with a resistor in there...dunno.

I'd be interested in other Dexa reg users and if found the regs sound changed over time. My experience (using my lug'oles) is that most electronic components DO show change over time from new.

Just wondering about these Dexa's...