Gibson' Birthday Tribute to Black Sabbath's Tony Iommi
What's the secret of his literally monstrous tone? In 1969 and 1970 Iommi was experimenting to find a signature sound during the making of both Black Sabbath and Paranoid when he hit on the combination of Gibson SGs and Les Pauls teamed with a high-gain amp, specifically Laneys, to set him apart from all the six-stringers blasting through Marshalls and Hiwatts at the time.
First, he tuned his guitars down to allow for greater flexibility and to create a darker instrumental voice. Rolling the tone pots back on his instruments and turning the mids, treble and gain up to 10 on his amps, Iommi created a basic sound that was entirely unique, varied only by the positions of his pick-up switch — full rhythm up for chords and full lead down for solos. Treble was an essential part of his tone crafting as well, and he employed a Rangemaster treble boost box to enhance highs. more on this story
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