In this video I compare a 1967 Gibson SG Special to a Custom Shop Gibson SG Standard. So we're comparing P90 to Humbucker to see which comes closest to Tony Iommi's Black Sabbath Guitar tone! I'm using a 1977 Marshall Super Lead through a 1968 Marshall 1982A for the comparison but we also have references with Laney Super Group and a Laney Klipp Cab, both Goodman equipped.