Clockwise from top right:
Roland RE-201
Traynor YBA 1a Bassmaster
Sunn Solarus
Sunn 612s
Sunn 412L
Traynor YGC-412
Are you sure that cabinet has six
12's? I think the only Sunn 6 X 12 was the 1200S cab (48"x30"x15"). It looks like a 42"x24"x15" 610S (Sunn Transducers), 610M (Sunn Magnas), 312S (Sunn Transducers), or a 312V (Cerwin Vegas) from the early 70's.
If it has six 12" drivers it would be the only 42"x24"x15" one
I've ever heard of, and it doesn't appear in any of the Sunn literature I've collected.
Measure one of the drivers and see if it's 12" or 10". If it
is six 12's, take some pictures while you're in there, and see if you can find any date codes or serial numbers.
Thanks!
Nice YBA by the way. Do you know about the easy plexi mod you can do to it? Makes that old Traynor scream!