I agree with Zed in that the Rega is a stereo output player. My suggestion is to split the outputs from the Rega's analog outs. Run one left and one right to the 5.1 direct FL and FR. Combine the other two outputs and connect to the 5.1 direct sub. Use the subs crossover and there you go, I think
You could also insert an ICBM in the chain between the CD player and the 1050 for better bass management of both the mains and sub.
[This message has been edited by morphsci (edited April 16, 2002).]