The most iconic rhythm guitar tone in hard rock. Angus Young's tone on Back in Black is deceptively simple: a Gibson SG plugged straight into a cranked Marshall Super Lead 1959 (Plexi) with nothing in between. No pedals, no effects, no tricks. The entire sound comes from the interaction between the SG's bridge humbucker and the amp pushed to the edge of breakup. The bright, biting attack of the SG cuts through the mix, while the Plexi's warm British overdrive provides just enough grit without losing note clarity. Malcolm Young's identical rig on rhythm creates the massive wall of sound.