The Bottle Caps are Blue's innovative system of nine interchangeable capsules, each offering the recordist a different tonal characteristic and pickup pattern. From airy highs to larger-than-life lows, the Bottle Caps capture anything from vocals to bass, wind instruments to horns — and everything in between with a level of detail and clarity found in only the most expensive and rare vintage classics. The Bottle Caps work with Blue's Bottle, Bottle Rocket Stage Two, and Bottle Rocket Stage One mics, or any microphone with a foundation for interchangeable capsules. Each capsule in the series is numbered from B0 to B8, and each has their own unique sound.
The Blue B4 Bottle Cap is a Perspex Sphere Omni Small Diphgram capsule for the Blue Bottle, designed to capture lush lows, and sweet highs. Well suited for the ambient recording of classical and orchestral instrumentation, as well as background vocals, organ, accordion, and drums, you can capture nearly any distant background source with the Blue B4 Bottle Cap.
B4 Bottle Cap Features: