I'd like to do a kind of "poor man's zoning" where I've got an amp for each room, and I run the outputs from the pre-amp to the first amp where they plug into a T-connector and then from the T-connector it runs to the second amp. That way, by turning each amp on or off I can have music in either room or both rooms simultaneously. My question is, is there anything dangerous about doing it like this? Would a Y-connector at the pre-amp be safer? Why or why not? Thanks for any advice.