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Blumlein pair for double bass?
Old 5 days ago
Gear Nut
Ukiah Bass's Avatar

I've been systematically trying different mic configurations at different heights and distances from the bass. The large diaphragm condenser in omni mode is rounder, fuller, and bassier than cardioid. Someone said omni captures sound an octave lower; not sure if that's true or how it does so, but omni is a winner for double bass! The Blumlein Pair sounds very good, relatively tight sound and some room noise. The M/S with cardioid as M less so. The M/S with omni is the best stereo config of all three placed about 3 feet in front of the bass. I've also tried small diaphragm condensers about a foot above the top of the fingerboard / bridge area pointing down. Summed-to-Mono sound great and merged with a single LDC in omni, but a stereo X/Y config of the SDCs plus a single mono LDC in omni three feet in front of the bass is sounding really good. Normally the X/Y has a strong center image, and placing it close to the bass (esp. for fingerboard noise) enhances the combined signal with a touch of "3-D" moving up and away from the instrument. The photo roughly shows the layout. The X/Y and LDC placement is roughly 1:3 to help minimize phasing issues.

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