I bought a crate FXT120 about a year ago and randomly I can't play through the regular combo amp speakers. I can only play if I'm using a cab. I think something got disconnected sround the input jack but I want to make sure before I take it apart. If anyone can help me out with fixing this it'd be sweet. Give me any information you know.
either the speakers came disconnected somehow at the speaker itself or the cables insert jack like you said. Make sure the tips inside the insert jack are touching the cables tip once you get it open.