Hartke repeat repairs, power output HELP!!!!!!
here's the quick and dirty..I bought a used Hartke 3500 on ebay. I received it, played it for a few hours. I took it to practice, and played a little longer, and the output section blew. I emailed the previous owner, he says "I had that same part just replaced before I sold it". No warranty. So I get it repaired at an authorized dealer. After $250 later, the amp only lasts one song and blows again.
It's back in the shop, and Im gonna get charged for parts again.
The repair guy thinks it's my 2 cabs blowing the amp. They are BRAND NEW SWR Workingman's 2x10 and a 4x10. He connected the 2 cabs together and put a multimeter on the output of one of the cabs and it reads 2.6 ohms, so he says that the amp is only rated for 4 ohms, thats why it's blowing.
Am I right in suspecting that he's wrong, is overlooking another problem in the electronics, and the head is gonna blow again even if I only play thru my 4x10 without the other cab?
HELP!!!!! Please...I'm gonna end up spending $600 on a $400 head