Paying homage to the classic American two-stage circuit originally manufactured in the 1930's through the 1950's, the CA-70S perfectly encapsulates the huge thick tone that is what many consider to be the quintessential “old tube preamp” sound. Utilizing our component level modeling technology and meticulous refinements with the team at Coil Audio, we were able to bring the sought after sound of old octal tube circuits into the modern world.

The Coil Audio CA-286S is a modern homage to the iconic European two-stage amplifiers of the 1950s and 60s, inspired by legendary brands like Telefunken™, Langevin™, Collins™, and Gates™. While the CA-70s delivers a deep, massive tone, the CA-286S offers a more mid-forward, high-fidelity character, while capturing the rich, detailed tones typical of vintage EF86 tube-based preamps.