I am using the 635 as a pre pro. My amp is the Parasound 1205A ( 5 channel)
I've been visiting these pages for some time and am very intrested in the 990.Within the next couple months I'll be upgrading from the 635.
My speakers are Monitor Audio gr-20's and RS 8's. A common complaint of these speakers is there brightness.The 635/Parasound combo seems to tame the brightness. Will throwing the 990 in the mix, replacing the 635,cause any increase in brightness( listener fatigue)or is this condition attributed to amplifiers only.
Thanks