#1
Hey, I'm kinda really knew to the whole amp thing as I have just generally been playing an acoustic my entire guitar career except for my ibanez though a 15 watt practice marshall. I have been thinking about getting the JCM900 recently though but I'm a little lost about the whole thing. I don't know what a 'head' really does or if you need one to get an amp like the JCM900 or if that is just a 'cabinet' but i don't really know what that is either. i think a cabinet and an amp are two different things and you only need a head for a cabinet but I really don't know. If you could help me out with this that would be great. thanks.
#2
if you look on your marshall practice amp it has all the knobs connected to the amp eg the volume controls etc a head is basically that but it is not connected to the actual speaker you have to buy the speakers seperatly.
Head= volume control, gain, bass, contour, treble etc. some have extra features like reverb delay and more.
#3
a cab is basicly, just a box full o' speakers, most commonly 4 x 12 inch speakers.

The head is what you plug your guitar lead into and has all the volume control nobs and all that kinda fing, you have to have a cab to hear the sound from the head and equilly you need a head to send the sound to the cab.

The above is called a half stack, and will be EXTREMELY lOUD!!
#4
Slightly off topic but, what's the difference between a half stack and what I suppose would be a full stack?
21st Century Digital Boy
#5
Half stacks consists of one cabinet and a head, full stacks have two cabinets and a head.