The Speaker Cabinet Model to record Back in Black is compared to the model used in the 1970s. 1980 Marshall 1960A Vs 1971 Marshall 1960A. The 1971 Cab has G12M25 75Hz Celestion Greenbacks (AC/DC used a lot of the later Blackback equipped cabs too in the 70s)and the 1980 Cab has G12-65 Celestion. Amp: 1976 Marshall Super Lead modded with a Forsberg DF100VH Preamp. Guitar 2008 Gibson Les Paul R9.