Up for sale is a cool vintage GBX guitar amplifier + cab. Made in Canada in the late 60s/early 70s, this is an interesting amplifier as the head is the pre-amp and the cabinet has a built-in power amp. It is in good overall condition with no scratchy pots. Features on the head/preamp: -Gain, brilliance, depth, and contour controls -Tone response selector (essentially a 5 way eq switch) Features on the cabinet: -4x10" Speakers -Built-in power amplifier -Auxiliary power output