1979 Hiwatt DR 201. This is an amazing sounding head for bass or guitar. This particular head was built for Neal Schon of Journey. The front end of the amp was tuned to his requirements. We do not have any documentation to prove this but the amp does sound incredible. Tons of headroom for guitar and also one of the best sounding bass amps ever built. These sound great through SVT cabs and through 4x12 cabs. Overall amazing condition.