Best AV receiver to use as an AV pre amp


I want to get another AV receiver, but I want one that has a really good pre section in it so I can also use it well for 2 channel music. I have a Bryston 5B ST that I use for the front 3 channels(and for 2 channel music), but I want to use the internal amps in the receiver for the surround channels only (hence why I can't use *just* a preamp).
I am using my Denon AVR 2808 as the pre now with the Bryston and it is OK, but I feel is really holding it back.
Any suggestions on what would be a go AV receiver that has a great preamp section in it ?
dallyd31
Is there a slimline receiver that would free up the space needed for a two channel preamplifier?
i have a mcintosh mx132 h/t pre-amp tuner for 2 chanell listening paired with a mcintosh amp. is this ok?? i like it.
This is an old thread but I'd like to know the final resolution from OP.
Currently aventage series from Yamaha claims to have really high end preamp and DAC. 

     I think zd542's post way back on 1/26/2013 contained all the answers the OP needs to answer his original question.  That was 5 years ago but zd542's advice is still valid today.
    Due to the OP's insistence on only using an AVR for 2-ch music and his insistence on not utilizing a high quality separate preamp with HT Pass Thru, however, I seriously doubt the OP has improved his system's 2-ch music performance unless he followed zd542's very good advice.
    My thought is "you can lead a horse to water but you can't make him drink"
  Tim