The B2 capsule has a vintage rich ribbon sound with muted top end and detailed mid-range.

Blue's Bottle Caps are interchangeable capsules designed for any mission. The Interchangeable Capsule series contains microphones capable of providing a wide palette of tonal characteristics and pickup patterns to satisfy even the most discriminating tastes. The series integrates the best of Blue's discrete Class A circuitry with a unique and revolutionary system of interchangeable capsules that provide the engineer a wide range of potential tonal characteristics. This series is employed in the world's most respected studios, and is recognized by industry insiders as the world's premiere microphone system.
 
Features
Sonic Character
Big, warm, and full sound reminiscent of vintage ribbon mics
Suggested Applications
For bringing out the warmth of vintage brass and woodwinds, jazz and horn ensembles, all extended-range strings and bowed instruments, acoustic and electric guitars, slide guitar, vocals and organ.
Inspiration
B2 pays homage to the full sound of classic ribbon mics in a whole new way. Outfitted with a condenser capsule, B2 is able to replicate the sound of vintage ribbon mics while bearing up to higher SPL for an exquisitely present timbre.