My first amp is still in my garage, a beast of an amp.
An Acoustic 320 Head and an 804 Cabinet. The cab has four 15 inch speakers, two facing out, and two in the middle: one up and one down.
I found a picture of it on an old ad at the Acoustic360.com site
Writeup on the head, also courtesy of acoustic360.com
"The 320 measures 26.5" x 6.5" x 11.5" and features two switchable channels and one blender channel!! Each channel features: Input Jack, 10dB PAD, BRT, Volume, Treble, Midrange, Bass There are Power Boost and Equalizer switches, and a 5-band EQ "
All I know is my guitar player at the time had a full Marshall stack and this amp could drown him out when I felt like punishing him in practice.
It shook the windows whereever it went, and could be heard for blocks at outdoor parties.
It's huge, almost 6 feet tall I would guess. It has a built in dolly system: two huge handles a set of wheels only in the back. Tip it back and coast it around like a fridge!
I love it!
George