Locomotive Audio Releases Two New American 1940s-Style Tube Preamps

St. Louis, MO (January 23, 2025) — Locomotive Audio has released two new tube preamps. The 40AM-1 500 series single-channel mic preamp and 40AM-2 stereo rackmount mic/line preamp. Both products offer the same big, thick, and compressed sonic signature of their 1940s inspirations. Drawing inspiration from iconic models, these preamps combine RCA BA-11A and Gates SA-70 design elements into one ultimate creation. Packing a powerful punch but versatile enough to be used on a wide range of sound sources, the 40AM will help produce recordings that embody the warmth and character of a bygone era.

The 40AM's true beauty lies in the subtle nuances available by adjusting any combination of its features. Whether choosing between input transformer windings or utilizing the 5-position Response switch, you can easily tailor the sound of any source. With added features like a 20 dB pad, 85 Hz low cut filter, and a high impedance DI, the 40AM is an essential addition to your rack, allowing you to sculpt the sound you desire.

"I've been asked repeatedly over the past few years when I would offer a 1940s-style preamp," says Locomotive owner Eric Strouth. "With the growing interest in designs that use metal octal tubes like the RCA BA-11A and Gates SA-70, I took the opportunity to create a new hybrid design that combines the best features of both. Customers can expect a thicker, more compressed sound that complements the Locomotive 86B and WT-72, finishing the Locomotive preamp lineup with little crossover in the sonics."

The Locomotive Audio 40AM-1 and 40AM-2 are currently available for preorder at $999 and $2299, respectively, and will ship in early March. For further details, please visit locomotiveaudio.com