Hi bassers. I had been eagerly awaiting the arrival of an Aguilar AG500 which I won on eBay a few days ago. Sadly when it arrived it was behaving a little strangely... The amp turned on, and was working fine for about 10 seconds. Then the sound disappears (with a relay click), then it comes back, then it goes off again ... etc ... This happens every 1 second or so, regardless of what I am putting through it, channel selection, settings, bass, leads, anything. I checked the cab and it was reading out at 4 ohms on my multimeter. But what on earth could be causing this? A faulty protection circuit maybe. Has anyone had an experience like this from this or any other amplifier? Any suggestions would be welcome, it will be going in to the repairers in the next couple of days and the seller has agreed to cover the costs so that's all dandy... but I'm really surprised by this totally weird fault.