Universal Audio Bock 251 Tube Microphone

Universal Audio

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Product Code: 3835
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The Universal Audio Bock 251 Tube Microphone is a flagship large-diaphragm tube condenser mic, that provides the smooth, open and balanced tone of the iconic ELAM 251. The 251 voicing is not only stellar for vocals, but also a real studio workhorse for any sound source. Each Bock 251 is handmade in Santa Cruz, California, to the exacting specifications of world‑renowned mic designer David Bock.

The Universal Audio Bock 251 Tube Microphone is David Bock's loving interpretation of the classic 251 microphones he studied and maintained as chief technical engineer of the world's top recording studios for two decades. Handbuilt at UA’s Custom Shop in Santa Cruz, California, the UA Bock 251 mic puts "golden unit" sound at the heart of your recordings. The Bock mics are a beautiful coming together of an award winning industry brand with an equally awarded designer; it's a perfect combination and we are proud to have these available at Front End Audio!

Rich Tube Mic Sounds, with Updated Sonics
With its German-made CK12 capsule and large output transformer, the UA Bock 251 gives you extended low‑frequency response down to 10 Hz and higher SPL capabilities versus vintage 251 microphones.

Built for a Lifetime of Harmonious Recording
Handwired using premium components, each UA Bock 251 is built and tested to David Bock's exacting specifications. With its vintage-inspired case, robust shock mount and accessories, this mic spares no expense to last a lifetime.

Universal Audio Bock 251 Tube Microphone Features

  • Large-diaphragm tube studio condenser mic, lovingly handmade at the UA Custom Shop in Santa Cruz, California
  • Iconic, "golden unit" mic sounds with modern enhancements by David Bock
  • Switchable omnidirectional, cardioid, and Figure-8 polar patterns
  • German-made CK12 capsule and Cinemag transformer

Universal Audio Bock 251 Tube Microphone Specifications

  • Frequency Response: 10 Hz - 18 kHz, ± 2 dB
  • Max SPL: 118 dB SPL, 1% THD
  • NOS ECC85 tube
  • Requires included UA Bock 251 PSU true linear power supply

Universal Audio Bock 251 Tube Microphone Includes

  • Bock 251 Tube Microphone
  • True linear power supply
  • Shock Mount
  • 7-Pin Mic Cable
  • Premium vintage-style suitcase
  • Warranty information

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