i run a second system in my kitchen off my main pre's tape outputs. the second system is a separate amp/pre. i don't tink it's subtracting too much from the kitchen system - changes in amplification/preamplification in the kitchen are readily apparent. i have had integrateds in the kitchen, in the past. and, the kitchen rig works fine even when the main pre is off. but, other than someting like what i'm doing, i really dunno why ya would wanna do this... some folk want remote, so they run someting like a placette passive remote in front of their pre's...
doug s.