Here's my feeble speaker upgrade. It didn't cost much, only the cost of the speaker.Aound $20.00 for the speaker and I bought the '86 amp for about $36.00 from a Pawn shop about nine years ago. I felt it was needed because the amp actually sounded better through headphones than through the speaker. ;D It actually has a good clean sound and spring reverb. The gain channel is nothing to write home about - about like a SS Marshall. I had to disassemble the cab and take the chassis out to make the change, but it needed some cleaning anyway. The speaker has MUCH better Bass response and a tighter sound overall. It'll get me by until I get something better.I oughta try a back panel!