The Beta 27 is a large-diaphragm FET condenser with a supercardioid pickup pattern, very low self-noise, and high SPL capabilities. It is intended as an all-purpose stage or studio condenser.
The capsule in the Beta 27 is essentially the same as is found in many of the company&rsquo,s one-inch LDCs &mdash, namely, it uses a 2.5-micron, gold-sputtered diaphragm in an edge-terminated design. The capsules are made in-house by Shure, and because of the company&rsquo,s tight tolerances, vary less than 0.5dB in frequency response from one another.
The Beta 27, like its namesakes the KSM27 and SM27, uses a single-diaphragm capsule. It achieves its supercardioid response through an acoustic resistance network or the rear side of the capsule.
Its frequency response is nominally flat from ~60Hz to 3kHz, with two small HF peaks (+2dB or less) at 5500Hz and 9kHz. The HF -3dB point is above 15kHz. This is generally a flatter response than is produced by Shure&rsquo,s similar LDCs &mdash, for example, the SM27 has a +4dB peak at 6500Hz.
The mic&rsquo,s supercardioid pickup pattern is extremely consistent below 6400Hz, with no sign of opening to omnidirectional at low frequencies. Above 6400Hz, the mic&rsquo,s polar pattern narrows, becoming more directional. At all frequencies, the nulls at 120°, are deep and consistent. This behavior makes the mic suitable for environments where isolation is valuable, such as onstage or in a live tracking situation with multiple instruments.
The mic&rsquo,s 3-layer mesh grille is the same as is found in many of the other LDCs, such as the KSM42, KSM44A, and SM27.
The Beta 27 ships with a mic clip (p/n A32SM) and a padded storage pouch (p/n A27ZB).
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