you would connect the pre-amp left and right outputs of your HT processor to the "Processor" input on LS-25(either single-ended or XLR). After that's done, there is a front panel toggle switch on the 25 to activate the processor loop. I wouldn't worry about degrading HT performance. Just use same good cables you were originally using with your HT processor and that'll do.
ARC LS 25 Mk 11 Bypass
I'd like to get better "2 channel" performance out of my HT system (Bel Canto Evo 6 amp and PrePro processor, Theta CD transport). When I was at my local stereo store the salesperson recommended that I simply purchase the LS 25 Mk II. He told me that it has a "bypass" feature that will allow me to use the LS for 2 channel music and the PrePro for HT and multichannel applications...without having to move cords everytime I want to move between music and HT. I've tried to find literature on line that would explain how the wiring would work, but I've been unsuccessful. Has anyone out there done this with the LS 25 or some other preamp? If so, did you find the 2 channel sound to be substantially better than simply running it through the processor?
Thanks everyone.
Thanks everyone.