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The Electro Harmonix Mainframe can be deployed to brutally cut your guitar signal down from 24-bits, to just 1, opening up deliciously low-fi and crunching electronica-style sound. You can even reduce the bit-depth to 8 and transform your guitar into an ’80s arcade game soundtrack. Besides crushing the bits, the sample rate can be set to tweak the pitch and general vibe of the effect, and this signal-chewing little stompbox kindly comes including a 9.6DC-200mA power supply.
The Mainframe: Crushed it Up
With the Filter switch, together with the provided Filter Freq and Peak pots, you have full control over the characteristic, distorted side-noise of the bit crusher so it can be fine-tuned in detail. The Blend pot sets the balance between the crushed and dry signals, and for fully effective hands-free control over certain parameters, an expression pedal can be hooked up to the EXP input and assigned using the EXP/Present button, making you master of the bit-crushing universe – or just the humble yet devastating EHX Mainframe.
