Charles - PWD Direct-to-amp. I would like to add a Coincident LS, but need the remote version, can only afford to buy used, and have trouble committing to that cost when the DAC already handles all my inputs. I'm not currently buying anything, but vacillate pretty strongly between wanting to spend on the LS, a speaker upgrade to the Total Eclipses, or dealing with my power (probably by buying a regenerator like the PS audio P5 or P10, as my power browns out semi-regularly). Tough to figure out which is the best investment.
OP - One of my fuses was used and the other was new. I never checked on hours though. The PWD has two fuses and replacing either with a Red (new or used) always hurt the cause. It's been a while so I don't remember the exact details, but I did run them in for at least three days (the DAC is always on). My comparisons to the stock fuses happened after that.