what kind of fender is it?

I want to change out the tubes in the ga-5 also, but I don't think it's going to cost all that much since it only has 1 power tube, 1 rectifier tube, and 1 pre-amp tube. I would like to put some tubes in that would let me crank it a little more before it starts to break up, which it does very early right now. I also might look into changing out the speaker for one that can handle bass a little better since the neck pup in my custom 22 is pretty bass heavy. Anybody have any tube or speaker suggestion?