Am I defeating the benefit?

Hey all,
I am running a Sonic Frontiers pre amp wich has no remote, I run it thru my Rotel Pro using the Multi channel bypass inputs because I am disabled and it is nice to have volume control from remote.
My question is does this have a serious downside in sound because of going thru the Rotel, and if so how else can I run this in a dual use system? Would I be able to link both preamps at the amps using a 2 into 1 RCA?
For the record the tube pre is linked to the Rotel with MIT 330 series II IC'S and I just cant seem to get 100% happy with the sound...OK I am not happy with it at all, it seems the VMPS have way too many adjustments and it is hard for me to dial them in (these are biamped with outboard bass crossover and adjustments for the ribbon mid and tweeters.....I am kinda at my end with all this, it seems impossible to do things right and be on a fixed income, music is one thing a guy like me can enjoy, and I am losing the passion with all this frustration, I am pleased with the bass performance using an Aragon 4004MKII
but the mids and highs are for shit and I cant even think about an amp upgrade because of income.
Any ideas or suggestions on a affordable solution to my problems, not really sure what anyone could really do but I am really getting miserable and fed up with something I have always taken great pleasure in.....and I guess I just need to vent so thanks guys. Chad