Microphone with surface effect for the bass drum, the piano or any other serious instrument, the BETA 91A surprises by its design. But it is thanks to his performances that he made a name for himself!
Surface effect?
This type of microphone uses the surface on which it is placed to capture, in addition to the direct acoustic wave, the reflected wave of the sound source. Thanks to this acoustic reflection, the surface effect microphone provides excellent results in terms of sensitivity and dynamics.
Resistant for the bass drum.
The Beta 91A is particularly suitable for catching the bass drum, whether placed in front of or inside the latter preferably. Its hemi-cardioid static capsule withstands high acoustic pressures and allows maximum gain before feedback. Its frequency response, optimized for low frequencies, makes it easy to use in high volume environments. In order to bring out the attack and the dynamics of the sound, the Beta 91A has a switchable frequency-correcting filter that neutralizes the low-midrange and emphasizes bass and treble. The microphone preamplifier XLR connector has been integrated into a robust construction and a streamlined design that induces a smaller footprint on stage, and resistance to any event!
The nuances of the piano.
Inside, on the soundboard, or under the lid above the strings, the Beta 91A offers a different acoustic sound and aesthetics depending on what you are looking for. Its capsule, which accepts a high dynamic, will be able to perfectly transcribe the nuances of the piano, whatever its position. This makes it an extremely versatile microphone, whether with a upright or grand piano, or for a close-up sound.
Surprising in its design, the Beta 91A offers musicians and sound technicians another way of capturing the source, with a microphone with a surface effect for close proximity to high pressure, particularly suitable for bass. A real asset for drummers and pianists!
Electrostatic micro-cardioid surface effect microphone for bass drum and other high-level bass instruments. Max pressure 160 dB SPL. Successor of the SM 91A. Needs no external fixation and can be placed on a cushion or on any other surface placed inside a bass drum. Comes with thick C98D cable and RPM626 detachable preamp.
Hémicardioïde.
Their extraordinary performances and the talent of the greatest artists have made Beta microphones true "stage beasts", now available in wired or wireless versions. Their legendary warmth, presence and sensitivity, optimized response curve, and multiple configurations of Beta capsules appealed to anyone looking for perfection. All models benefit from optimal insulation and minimal off-axis coloration.
The Beta series represents the highest technology developed by Shure. Totally avant-garde design and unequaled performances, the Beta series is truly the standard of live concerts. Very high quality stage pickups, great sensitivity to capture the slightest nuances of sound, even in demanding environments.
- Optimized cardioid, supercardioid or omnidirectional directivity.
- High sensitivity ensuring studio quality at high sound pressure levels
- Anti-shock system pneumatic.
Category: wired microphone
Type: instrument
Directivity: hemicardioid
Capsule: static
Frequency response: 20 Hz - 20 kHz
Attenuator: 7
Rated impedance: 146
Sensitivity: -48.5 dBV / Pa (3.8 mV)
Clean noise: 29.5 dB
SPL max: 155,00
Connectors: XLR
Cables included: no
Switch: no
Including pliers: no
Accessories included: carrying pouch
Dimensions (mm): 139 x 95 x 20.5
Weight (kg): 0.43
Brand reference number:
SSP BETA91A
en 
Certified
