Red Devil

The Stam Audio Red Devil is a dual-stage tube preamplifier in 500-series format, designed with coloration and low end in mind. Essentially a tube version of the vintage API A312 preamplifier from the 1970s, it retains the aggressive character and punch of the original while adding further harmonic distortion and warmth through a second output stage based on an ECC83 tube and a US-made 5:1 steel output transformer. The US-made 1:8 input transformer and Stam's reverse-engineered SA-25 discrete op-amp are exact replicas of those found in a vintage API 312 card from the 70s. The signal flows through the discrete op-amp into the ECC83 tube stage for additional coloration before hitting the steel-lamination output transformer. Built with 1% tolerance resistors, Vishay capacitors, and the most accurate 2520 DOA replica available. Features include 48V phantom power, impedance switch, polarity switch, and a built-in DI. Ideal for electric guitars, drums, and hard vocals. Each unit is handmade in Chile with custom Stam aluminum knobs made in the EU.