GRGuitar   acoustic guitar combo, 2 channels 80W biamped, 5"+1", 6,7 kg

GRGuitar   acoustic guitar combo, 3 channels 120W biamped, 6"+1", 7,6 kg

GRGuitar   acoustic guitar combo, 4 channels 140W biamped, 8"+1", 9,3 kg

GRGuitar Aerotech Series   acoustic guitar combo ligthweight fiber, 2 channels 80W biamped, 5"+1", 3,7 kg

GRGuitar Aerotech Series   acoustic guitar combo lightweight fiber, 3 channels 120W biamped, 6"+1", 4,0 kg

GRGuitar Aerotech Series   acoustic guitar combo lightweight fiber, 4 channels 140W biamped, 8"+1", 5,5 kg