Accuphase E600 or Esoteric F-03A

greg, when you had the F-05 Esoteric how much of a step up was it on your E460? 

@cool_jeeves - It wasn't much of a step up, if at all.  I had an E-470 BTW.  

Greg, thanks. I am veering towards the Gryphon Diablo 300, which seems to be sitting all by itself at the table...

All good things come to those who wait & conduct due diligence.

My system to date :
 Vienna Acoustics Beethoven baby grand S.E's
 All Primare  source to date:
 A32 power amp
 BD32Mkll universal player
 Pre 32
 XLR Interconnects
 Isotek power board
 After auditioning Accuphase's E600 (which has now been superseded) finances restricted that purchase the guys at Frank Prowse Hi-fi came to the party, A change of distributors leading to reasonable discounts on above components. 4 months have passed since taking ownership. Initially a bit harsh/fatiguing it's now an enjoyable listening experience. To George hifi thanks for your advice ( B.P.J.T's) theA32 has plenty & works quite well with the bbg's. Plenty of control/power.
  
Happy listening,
Troy

I just acquired an F-03A. It replaces a full stack of ARC tube separates. I was leery that I would not have enough power/gain to drive my Verity Audio Parsifal to acceptable level in my 15.5´ x 24´ room. Not so. 
This is my first SS piece in over 30 years and I can say that this pure class A 30w/ch integrated is sonically stunning. Just stunning. 
This is certainly the best decision I have made in my 40+ years in this hobby. 
No regrets.....