2 channel to 5 channel question(s)


I've been enjoying my 2 channel set up for years. I'm now getting the itch to expand to 5 channel
but I'm a little confused. I feel like I'm close but missing something. 
Currently using an Oppo BDP-93 Universal Player, Parasound Halo P5 preamp(which has HT Bypass), Krell KAV-2250 2ch
Amp powering Def Tech BP7002 Dipole Towers. I have another Amp (KAV-2250/3} 3 channel Amp in the waiting.Also Rear Surrounds.
I`m also considering purchasing the Oppo UDP-205 Player to replace the BDP-93. I know I'm missing a 5.1 
preamp but do I need it?  Also, I feel I don't need a Sub because the Def Techs have built In Subs. 
I do have some Concert Blu-Rays but my main desire is to explore SACD's as well as listening to 2 ch.
Any suggestions?

Thank You,
Jeff Swanson
audioslain02

Showing 1 response by mgattmch

I use an Oppo UDP-205 feeding a Krell HTS 7.1 into a Krell TAS. The results on video and audio are excellent. I have no plans to upgrade this system. In my case, the Krell HTS 7.1 is simply acting as a glorified volume control (processing is done in the Oppo with analog out to the Krell). I suspect if I used the Oppo volume control and fed the analog output directly into the Krell TAS, results would be similar, possibly better.