Replace the Supratek Chardonnay with Accuphase?

Jay,
I am probably a bit late, but have you tried tube rolling on your Chardonnay?
If you are using stock or wrong tubes (I am not saying the stock one are bad, but there are much better ones) you haven't heard what the pre is capable of. You can also perfectly taylor the pre to you liking and to better suit your power amp and speakers

hi,i used to have accuphase a-50v !!!i try to match with levinson 380s. krell krc-hr bat 50se 51se ...do not find the good match !!! finally i so lucky to get the used accuphase 280l ...the minutes i hook up to the a-50v the magic happen i never heard anything so good before !!!bottom line is accuphase product will work good with family only!!i did try theaccuphase pre with krell & plinius amp ...there is no match..do not try anything else get the accuphase & done.

Jay,
I have the Chardonnay too. In my own system, tube rolling to Ken Rad Black Glass VT-231 and changing power cord to Black Sand Silver Ref bring big improvements in the bass - tighter, better control and resolution. I am planning to change the output caps to v-cap soon. Before switching, try them first if you still like what the Chardonnay does in your system. Hope this helps.