I just bought a pair of Audioengine A5 speakers for my iMac. Truly a fantastic product. The only downside I've found is the very audible (and annoying) popping sound the speakers make when the amp goes to sleep after 15 minutes or so of inactivity. Obviously this is not ideal. Is anyone aware of an app or trick in OS X that will feed an inaudible sound every X minutes to prevent these powered speakers from sleeping? Any advice appreciated. Thanks! UPDATE: trying Antipop (http://www.macupdate.com/app/mac/29024/antipop). Will advise if this fixes the problem. I seem to recall that Antipop failed to fix the popping from my Logitech system because it didn't work with Snow Leopard? I'll give it another go for this Audioengine scenario.