GBX Amplifier
The GBX series was a concept created by Guy Beresford, (now with Yorkville Sound) the domed-headed madman who inhabited the basement of Kalua Music on Kingston Road in Scarborough. His family owned the store and he worked the rental and repair shop in the basement. Legend has it he designed the circuitry based on the idea that the head should be the pre-amp and the cabinet should carry the secondary amp and the power. The idea is you could scale up your power according to need since the cabinets would stack, driven by the four outputs of 0.5 watts from the head. Thus you could have four 140 watt cabinets pushing a total 560 watts.
GBX is said to stand for Guy Beresford Experimental.
The guitar series offered different configurations.
The Reverb Bug was a 1x12" Solid State combo offering 2 channels (Clean, Effect)
The Super Bug was a 2x12" Solid State Amplifier.
GBX also built 4x10" and 4x12" cabinets for guitars with the rear mounted amplifier.
Bass series were known as the 'Bass Bug' with a single 15 inch speaker. They also made 4x10", 8x10" and 2x15" enclosures for bass as well as a matching driver. There may have been other series but it's not clear since most of the history has been lost in time.
In the back of each cabinet was a power amp which was interchangeable with a unit that ranged from 90 to 140 watts (and probably some lower wattages). The head, a small, black and blue unit with a variety of channels for sounds, a single input and an effect input, was either designated for guitar or bass. It had four outputs on the back which fed the secondary, power amplifiers. It made the cabinets very heavy but the heads, conversely were incredibly light.
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