Hey everyone, I have a SWR Workingman's 160. An old amp that is discontinued. I was prcaticing with my new band last night **www.infernoracket.com** and my amp started to intermitently trun off and on again. I checked my power plugs, all of them were plugged in, and both of my volumes (Gain, and Master volume) were only on about half. I didn't noticed the pre-amp clip. But I dont' think it was constantly on. Does anyone have any idea what the problem might be? Do I need to trun down my gain volume? and crank up my Master? Please help soon. Thanks.