Las Vegas, NV (August 25, 2010)–TransAudio Group, the worldwide distributor for Bock Audio, has launched the Bock Audio 507 hand-built, large-body, tube microphone.
Designed for studio vocals, the Bock 507 combines a patent-pending elliptical capsule with a vintage-inspired, discrete, tube mic amplifier and custom power supply.
The 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 1 kHz. Small-diaphragm mics usually have a much higher in-band resonance, typically about 15 kHz or higher. The elliptical capsule reportedly avoids the constant distance “edge to center” of round capsules, reduces in-band resonances, and expands the application possibilities.
The capsule also has many conventional attributes, such as the 6-micron, gold-sputtered diaphragm used in the Bock 251 and edge-termination design. The elliptical capsule is hand-built in small quantities in Germany.
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 vintage, 47-inspired tube mic amplifier with 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. A Bock-designed four-section transformer, handmade in the U.S., completes the audio path.
Brad Lunde, president of TransAudio Group, said, “For years, we’ve been asked to offer a mic that could compete with the best 47s and other legendary vocal microphones. Now we have the 507 that incorporates unique designs that are technically superior. This is the best-sounding vocal mic David Bock has ever built.”
Bock Audio (dist. by TransAudio Group)