Are there really any high end pre/processors at a

I am playing with HT and have been into 2 channel for many years. I finally find a 5 channel amp that I can stand listening to but I am back to what has stopped me from setting up 5 channel; the crappy sounding processors.

I have tried several older processor (Lexicon MC12, Cary Cinema 11, Parasound P2 ECT) via analogue out to my Cambridge 751 and although interesting certainly not close to a really good preamp. I did try a newer Onkyo and I will leave the model number out because it was the worst sounding but I did get to try direct HDMI connection with that unit.

To clarify I do use very high end signal cables when going analogue so it is not the cabling. My HDMI cables are also very high end so again not the problem. I am using about $40K worth of very good speakers so let's eliminate them. For me it comes back to the processor. I really do not want to spend huge money on a processor because next week it will be worth nothing with technology so one thought was the Marantz 7005 but I am real open to any suggestions.