I just got a new entertainment center and have only 2 shelves to place all my equipment. I know certain components don't like being close to others, but I can't remember which they are. I have the following: Amp Tape deck CD player DVD player VCR I almost think I need to place something under the amp (since I don't want to put anything on top of it). Only the DVD player or CD player are big enough to have the Amp on top. Any suggestions?