Im wondering if anyone knows whats happening....Just did a upgrade the Asus motherboard Sabertooth Z77 & the Asus Xonar Essence STX sound card & whats happening just started after the upgrade....What i do always when i listen to music i make a list of say 20 song and let it run...But soon as the list is done and the logitech Z-5500 sits idel for a bit the volume pod power that runs the unit shuts off....Hit the start button add 20 more song off i go no problem but soon as it sits idel for a bit the power shuts off....Some say not much of a problem but i do want to know why is it doing this...Theres no power saving feature on the sound card same on the motherboard as far as i know...It shuts off just like theres a settings but i cant find anything