I fried one 30 W Spider by playing it too quickly after bringing it in from the cold. However, the CD/MP3 in works fine. I've already spent more than it it worth trying to get it fixed so I bought another one - like new. Store stickers still on it. In a perfect world I would make use of the cd/mp3 in jack to connect the broken one to the new one using the phones/record out. Having two 30W amps in a small venue could give an awesome sound - especially with effects. But the problem noted by so many occurs, plug into the record out jack and I loose the speaker in that amp. I have read some comments about altering the 1/4 inch jack going into the record out jack. Any ideas?