Pinnacle Microphones is a ribbon microphone manufacturer based in Washington State that picked up the lineage of Cascade Microphones, the cult-favorite ribbon brand whose products it now builds, services, and upgrades. The company's catalog centers on hand-tuned ribbon mics assembled in-house, including the short-ribbon Fat Top and Fat Top II (the latter offered with selectable active/passive operation) and the long-ribbon Vinnie, which uses a Lundahl transformer.

The Fat Top is essentially a continuation of the Cascade Fat Head design — a passive figure-8 ribbon mic with a corrugated aluminum membrane, prized in project and pro studios for its warm, meaty character on electric guitar cabs, drum overheads, brass, and piano. Beyond new builds, Pinnacle runs a custom shop that handles repairs, re-ribboning, and transformer upgrades on legacy Cascade microphones, keeping a large installed base of those mics in service.

The brand sits in the affordable-ribbon niche alongside companies like Royer, AEA, and sE, with a reputation rooted more in word-of-mouth and engineer recommendations than in heavy artist marketing.

Pinnacle Microphones has 11 products cataloged on Equipboard, including Ribbon Microphones.