This amp has broken down on me twice in the month and a bit I have owned it. I purchased it early January and it started distorting after a week of use. I took it to the shop I bought it from and it took like four weeks for them to fix it. They said that it was most likely not a speaker fault (what everyone on UG has been telling me) and it was covered by warranty, so it couldn't have been. I get it back just under a week ago and it started making the same distorting noise after 3 days. I have had a bit of a read and everyone is saying that these amps are known to have a lot of fuse problems. The guy in the shop didn't know what it was because he had to send it to a repair place somewhere else in Australia (that's why it took so long). Should I pressure the shop into giving me a new amplifier, or hope that the 2nd time it has fixed it will work again, or might I be doing something stupid with it?