Model T150 Preamp

The Model T150 puts the preamp of the rare first-generation Sunn Model T into a pedal, the amp that shaped a lot of doom and drone tone. It runs a dual-channel gain structure with Normal and Brite controls for the two voices, a Master for overall output, and a full Bass, Mid and Treble stack to shape the response. That combination covers clean, thick low-gain push through saturated, sludgy distortion, and the EQ has enough range to tighten the low end for down-tuned riffing or open it up for a fuller amp-like sound. It works in front of an amp as a character drive or into a power amp or effects return as a standalone preamp. Runs on 9V center-negative from an isolated supply, draws 45mA, true-bypass relay switching.