Anyways I thought about it and wonder if anyone made a capsule that is dual but has a center
terminated "k47" on one side and the other have an edge terminated "k12" on the other side?
The rear side of every Braunmuhl-Weber style (dual diaphragm, large diameter) capsule, including the K47 and CK12 styles, is part of the sound of the front side. If you were to change the rear side of the CK-12 to anything else, the front wouldn¡¯t sound like a CK-12 any more. The same applies to the K47.?
As a practical matter, the K47 has a single backplate, so there¡¯s no "rear half" that could be removed and combined with something else. And of course the true CK-12 has a tunable inner backplate piece that sets the two chamber volumes. There is more to the sound of these than just the termination style.?
That¡¯s not to say someone couldn¡¯t engineer a mic with two distinctly voiced sides, of course.?
MXL had a mic that was promoted as a ¡°dual voice¡± design. It had a front/rear switch and an LED that indicated which side was active. The capsule was a 32mm K67, IIRC, with 6-micron film on one side and 8-micron on the other. I assume they were tuned differently. In my testing, the side described as ¡°warm¡± had an exaggerated 12kHz bump, +5.5dB, while the ¡°bright¡± side peaked at +6dB around 10kHz.
Find notes on that here:?
With in-circuit EQ, it¡¯s possible that mic would have been smoother and more usable, although I¡¯m not sure the two sides would have sounded different enough (after EQ) to justify the cost of the switch, LED, and the special capsule.?
The alternative is to have two mics that were both purpose-built to sound like whatever distinct sounds you¡¯d want. Hang them side by side, record both simultaneously, and then choose later which track to use. Yeah, that might cost more than one mic that does everything, but the benefit is that you only need one great performance, not two.
¡ª
matt.
