Augmenting the already highly successful GB4 console range is the new GB8 8-bus console. The GB4 has found many friends including the Cavern Club in Liverpool, and in use at the Bedford venue inAugmenting the already highly successful GB4 console range is the new GB8 8-bus console. The GB4 has found many friends including the Cavern Club in Liverpool, and in use at the Bedford venue inAugmenting the already highly successful GB4 console range is the new GB8 8-bus console. The GB4 has found many friends including the Cavern Club in Liverpool, and in use at the Bedford venue in