UNIVERSAL AUDIO UA Bock 251 Tube Condenser Mic

Multipattern tube condenser microphone

• Wide-diaphragm tube condenser microphone, handcrafted at the UA Custom Shop in Santa Cruz, Calif.
• "Golden unit" sound inspired by the iconic ELAM 251, with modern enhancements by David Bock
• Selectable polar patterns: omnidirectional, cardioid and figure-8
• German-made CK12 capsule and Cinemag transformer
• Extended frequency response: 10 Hz - 18 kHz, ± 2 dB
• Handcrafted construction with premium components and dedicated linear power supply

Universal Audio UA Bock 251: the reference for studio recordings

The UA Bock 251 is Universal Audio's flagship tube condenser microphone, capable of delivering the smooth, open tone of the iconic ELAM 251, considered by many to be the best vocal microphone ever made. Each unit is hand-built in California, following the exacting specifications of renowned designer David Bock.

Craftsmanship and innovation

The result of decades of experience in servicing and studying the finest vintage 251s, the UA Bock 251 is a faithful yet updated interpretation. The German-made CK12 capsule and Cinemag transformer ensure extended bass response down to 10 Hz and superior SPL handling compared to vintage models.

Built to last a lifetime

Hand-assembled with select components and point-to-point wiring, the microphone includes UA Bock 251 linear PSU, spring suspension, and vintage-style hard case. An investment destined to last a lifetime career.

Technical Specifications.

• Type: wide-diaphragm tube condenser microphone
• Polar patterns: omnidirectional, cardioid, figure-8
• Capsule: CK12 made in Germany
• Transformer: Cinemag
• Valve: NOS ECC85
• Frequency response: 10 Hz - 18 kHz, ± 2 dB
• Max SPL: 118 dB SPL (1% THD)
• Power supply: linear PSU included
• Accessories: elastic suspension, vintage hard case