Which Onkyo pre/pro are you using? I own an Onkyo SR-706 AV receiver (does duty in my HT setup) that I have used both alone and as pre/pro w/ Rotel amplification. I know it is an unfair comparison of an AV receiver with a dedicated pre/pro, but I have definitely found the Onkyo to have a "glassy" and somewhat harsh sound quality. I am currently auditioning some integrated amps- and the difference is considerable.
Have you heard your speakers sound more to your liking with other amplification? Perhaps when you first auditioned them?
Have you heard your speakers sound more to your liking with other amplification? Perhaps when you first auditioned them?