Wow! that is a monster player!
A few observations...I love the bass that dude's playing; such a cool finish...the clothes are BAD (and this coming from a guy who owns and wears vintage shirts with wide collars...
I also spotted a nice Traynor Custom Special behind the keyboardist; those are seriously cool amps-and loud-the only tube amp at the time to compete with a SVT; it used a weird tube usually used in tv's...most today have had 6550's put in them(a direct replacement) and they're still loud as hell; a friend of mine has one and it'll peak out at 170 watts or so, scary loud...the coolest things about those amps though is a few things; two lights, red and green so you could tell if the amp was on standby or ready to go, they were built like old Fenders with eyelet board but with better transformers, and the era seen in the video had a cool feature where the top of the box was held on with four bolts; remove them and the top came off and you could service the amp without removing the chassis...I have no idea why no one else has done this, it is genius...Tony.