sumitr 0 Posted May 5, 2015 Hi, I am using a DT25 head with 2 cabs. I turn on the amp 1 evening for band rehearsals and all I get is a very low volume, fizzy sound. Please see the attached video. In the video, it actually sounds louder than it is in real life...I probably had the iphone close to the speaker.. - this is at full channel and master volume. Does anyone know why this is happening? I was using it just the night before with no indication of any kind of potential failure. Thinking it might be a tube issue, I reseated all the 3 tubes but no luck. I havent tried changing the tubes out yet - looking to see if anyone else has experienced something similar Any thoughts would be much appreciated DT25 issue.wmv Share this post Link to post Share on other sites
radatats 918 Posted May 5, 2015 stop using it and get the tubes checked/replaced. Don't risk anything more serious failing as a result of a bad tube. And unless you truly know what you are doing, keep your hands out of your amp. Tube amp voltages and currents will kill you DEAD. Share this post Link to post Share on other sites
