#1
So I use a Peavey JSX head through am ampeg 4x12 cab, when I play with my band I have to turn up it up to at least almost 10 on my channel volume and 7 or 8 on my master with that head it doesnt seem like I should have to turn it up to that just to hear myself over my drummer, I only turn my peavey studio pro 1x12 to 5 or 6 when I use that...

Any ideas as to whats going on? Could it have something to do with the tubes maybe? Maybe a better speaker cable between my head and cab?
#2
Definitely sounds like the power tubes need to be replaced. Also make sure your speaker cable is adequate, and you're matching the cabs impedance to the head.
#3
Ok, Thanks. The impedance is matched right, I am using a cheap-o speaker cable at the moment. And ill look into getting the tubes checked out, whats a ballpark price for getting new powertubes installed? This is my first tube amp, bought used and its a little over 2 years old.