A few weeks ago, I was looking for a schematic for a PA amp, and called it a
"head" on here. I got told that it wasn't a head, because it had a preamp in
it, and a head has only line level inputs.

Today, I was looking on the site where I get all my Marshall info -

http://www.drtube.com/marshall.htm#M2000

- for schematics for a 2195, which is a guitar amplifier with a preamp in
it. Interestingly, that site calls this amplifier - and indeed anything that
is not a "combo" - a head ...

So now I won't feel so wrong continuing to call these amps heads, as the
muso who owns the shop where I get most of this work from does too, and has
for as many long years as I have known him.

Arfa