Here is the aforementioned ’71 Super Lead that the core of his Kemper’s tone is mimicking. The head was supercharged by adding another preamp tube for another gain stage and a resonance knob on the rear panel that bypasses the amp’s low-end circuitry to avoid getting a flubby, muddy sound.
















![Rig Rundown: Russian Circles’ Mike Sullivan [2025]](https://www.premierguitar.com/media-library/youtube.jpg?id=62303631&width=1245&height=700&quality=70&coordinates=0%2C0%2C0%2C0)


























