Well guys here's the method that works and no need to connect using the speaker out on the sub.
2 channel - paired RCA's from preamp out to sub in. No problem here and I can save a 2 channel preset with this sub. Can also switch sub on and off from preamp (OUTPUT2 in my case)
HT/Satellite - Simply run a Y-cable from the processor SUB OUT single into any pair of inputs on the preamp.(In my case I used the TAPE, but all inputs work). I know the sub signal still passes through another component but it gets too tricky doing the other methods. I can still use the crossover from either the pro or the sub in this case and can also switch the sub on/off with the OUTPUT2 button on the front or the remote. Can also save a preset for HT and satellite in the sub's memory to default there even time HT is needed.
2 channel - paired RCA's from preamp out to sub in. No problem here and I can save a 2 channel preset with this sub. Can also switch sub on and off from preamp (OUTPUT2 in my case)
HT/Satellite - Simply run a Y-cable from the processor SUB OUT single into any pair of inputs on the preamp.(In my case I used the TAPE, but all inputs work). I know the sub signal still passes through another component but it gets too tricky doing the other methods. I can still use the crossover from either the pro or the sub in this case and can also switch the sub on/off with the OUTPUT2 button on the front or the remote. Can also save a preset for HT and satellite in the sub's memory to default there even time HT is needed.