my two amps needed about four days of being up and running 24/7 to get them to sound right even after they were broken in. It took my amps a solid 400 hours to reach that point! But let me tell you the wait is well worth it.
What you have will flatly smoke a pair of Krell mono blocs, and in my opinion run right with an Accuphase amp (and in many repects beat it). I might add here that I've had no less that five pairs of speaker cables hooked to my amps, and the ones I expected to be the best just didn't get it. The Audioquest Slates were bland and kinda dark. Monster cables (not their cheap ones) were about as good. The Synergistics were kinda bright with some glare, but very detailed. Gronenburgs are not bad, but the Cardas were my favorites. Gronenburg IC's seem to be the best so far, but have only had three or four others hooked up to them. I did find that MIT's and Synergistics worked well with the Candella preamp. The MIT was very smooth, but lacked the inner detail that the Synergistics have.
gary