Like most others here, I recently read Jim Smith's book on improving a sound system and incorporated some of his suggestions in a room redo. Added 18 acoustic panels and moved gear from a low rack 2' behing speakers to stands on the side. Amp is near subwoofer (unavoidable in my room in this configuration) so amps are on 70 lb sand filled wooden blocks. Foreplay and DAC on a roller bearing shelf. Have computer screen and mouse beside listening chair - extremely convenient.