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New Bock Audio 5-ZERO-7 Tube Mic Announced

September 15, 2008

Designed to be the ultimate in studio vocal microphones, the Bock 5-ZERO-7 is a new approach in high-end mic design that combines a unique and patent-pending elliptical capsule with a vintage-inspired, fully discrete, tube mic amplifier and custom power supply.

The new elliptical capsule design by David Bock and George Cardas strives to resolve the chronic in-band resonance issues of both large and small diaphragm microphones. Round capsules have a relatively low frequency in-band resonance, typically around 1kHz. Small diaphragm mics usually have a much higher in-band resonance, typically about 15kHz or higher. The elliptical capsule avoids the constant distance "edge to center" of round capsules, reduces in-band resonances dramatically, and expands the application possibilities.

The capsule also has many conventional attributes, such as the time-tested six-micron, gold-sputtered diaphragm used in the Bock 251 and edge termination design. The elliptical capsule is hand-built in very small quantities in Germany.

The 5-ZERO-7 offers many other unique features. To protect the microphone's large body, a three-layer head grille design prevents moisture (and therefore dirt) from becoming a continuing issue in the sound and long-term life of the capsule and microphone. A unique, vintage 47-inspired tube mic amplifier with very high gain was created by David Bock using his hand-selected parts. In addition, no negative feedback or filtering is used to affect the sound in any way. An extraordinary Bock-designed four-section transformer, handmade in the U.S., completes the audio path.

The custom Bock power supply is designed specifically for the 5-ZERO-7 and combines the best of the old with new and modern parts. It is a special inductor-based design, something not seen in modern production microphones, and offers the best combination of long-term power, low noise floor and high-end mic sonic performance.

More info at bockaudiodesigns.com.



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