HH Performer One Hundred And Fifty Watt Musical Instrument Amplifier (catchy name).
Dirst time to work one of these amps and have not seen gut shots anywhere so thought these may be of use to others. Massive amp with Mosfet output devices. Seems rather large for the power it can provide and a bit bulky in design compared with their earlier amps which were pretty innovative. Seems styled a bit after Peavey amps of the time (similar knobs and power amp on rear panel preamp on front panel. Looking forward to hearing her but need a few replacement parts first.