So, I have a Spider Classic 15 and am having issues with the guitar output sound. Whenever I plug my cell phone into the MP3 input I get sound just fine but when I unplug that and plug in my guitar I get nothing. The tuner works just fine, so it's picking up something. I've already toyed around with both the volume knobs on my guitar and the amp and still nothing. I also tested the cable and my guitar with another amp and they were working just fine. This just doesn't make sense to me because it plays sound through the MP3 and the tuner also works. I got the amp as a Christmas present over a year ago and it's been fine up until now. Am I going to need a new amp or is there some solution to this I'm not seeing?
