So were you saying that your Onkyo av receiver does not have pre-outs for you to connect to a dedicated stereo preamp with HT bypass? So I’m under the impression that you are going to get a separate stereo preamp and power amp to drive your speakers. And you will be using your stereo preamp for listening to stereo music and your Onkyo av receiver for HT?
Well.....if your Onkyo av receiver doesn’t have pre-outs, there’s nothing you can do. You can upgrade your AVR to the one that has pre-outs or perhaps get an AV preamp surround processor?