Looking back at the feature list of the Pioneer Elite 94, I can't think of anything else they could possibly add. From everything I've read, the only big gripe seems to be the lack of a fancy menu system.
Something I never really thought about... if I'm using the preamp outs to run my Sunfire Amp, can I still use the internal Pioneer amps? Also, I'm thinking I might bi-wire the Def Tech 7002's and use a couple channels of the poineer to run the surrounds. Seems like the power doesn't have to totally go to waste because I have a seperate amp. Thoughts?
Absolutely!
You could just use the Front L & R preamp output to your Sunfire amp. I forget, is it a 2Ch or 3Ch or more?
If it's 3Ch, you could use the Front L + C + R preamp out to your Sunfire, and have the AV Receiver power the surround speakers. (EDIT: since these amps have different gain level, you definitely need to check the speaker level).
No, do not bi-wire the 7002s. Reason: The 7002s are bi-amped like this: Low + High: Subwoofer + midranges/tweeters.
Even if you use an external amp to power the subwoofer section (LOW), the 7002s' internal amps will be powering the subwoofer drivers no matter what! So you would be just wasting amps.
I was doing this too until I found out directly from Def Tech. So by justing using single channel amp (like Sunfire), you are Bi-Amping the 7002s and CLR2500.
Now the CLR2500 (like the CLR3000) can be Tri-amped. This means you can use 2 external amps to power the HIGH Tweeters and MID Midranges, and let the internal amp power the LOW Subwoofer.
Also, when you bi-amp, make sure you use the same amp with the same voltage gain. So do not use one amp from the Sunfire and one from the Receiver. They need to have matching gain level.
Also, as Gene pointed out, you might consider Onkyo, Denon, or Yamaha since the Pioneer Elites under-perform spec-wise compared to these other 3.