Distortion/Sustainer
https://www.ehx.com/products/deluxe-bass-big-muff-pi
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Electro-Harmonix Deluxe Big Muff Pi 1978This vintage unit from 1978 is a standout piece of analog history, featuring the specialized EH1330A circuit board. It combines the iconic op-amp fuzz saturation of the late seventies with an integrated compressor circuit for unparalleled sustain and note leveling. The interface includes dedicated controls for compressor threshold and volume, along with a blend switch that allows for complex parallel signal processing. It is housed in the classic large chassis and represents a highly versatile evolution of the traditional muff circuit, offering everything from thick violin-like leads to aggressive percussive textures.Artist References Artist Use: The op-amp era Big Muffs are most famously associated with Billy Corgan of The Smashing Pumpkins, who used this specific circuit architecture to define the massive guitar sound on Siamese Dream. Other notable users of the 1970s muff variants include David Gilmour, J Mascis of Dinosaur Jr., and Jack White.

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