I got a gold x from Valley gaming ( Timathie W/HopsonENT ) and the power supply make a moderately loud noise reminiscent of a cricket when the machine is idol and varies in tone corresponding to the lights flashing when in idol. I very carefully tracked the noise to the top half of the power box (definitely not the speakers). it stops when your playing. I've been waiting about 2 weeks to hear back from Hopson. does anyone have any thoughts? Thanks.