Features & Applications
Features
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Applications
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Detailed Description BETA 58A
BETA 58A is a Shure BETA dynamic microphone for live vocal reinforcement and recording. Its supercardioid pickup pattern focuses on the intended source, with a published frequency response of 50 Hz–16 kHz. The microphone is passive and does not require phantom power.
The tailored vocal response, internal shock isolation and protective grille address close-up stage use. A neodymium magnet and supercardioid pattern support focused vocal pickup; monitor placement should account for the pattern’s rear pickup lobe.
A balanced three-pin XLR output connects to a suitable microphone preamp or mixer. Placement and distance remain central to tone and rejection. The table below keeps output impedance, open-circuit sensitivity and weight distinct from maximum SPL or preamp-gain claims that are not specified for every model. Consult the manufacturer guide for positioning and accessory information.
Manufacturer documents: Microphone user guide · Manufacturer product overview
Technical Specifications BETA 58A
Microphone |
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|---|---|
| TYPE | Dynamic, moving coil |
| POLAR PATTERN | Supercardioid |
| FREQUENCY RESPONSE | 50 Hz–16 kHz |
| OUTPUT IMPEDANCE | 150 Ω rated; 290 Ω actual |
| SENSITIVITY | −51.5 dBV/Pa (2.6 mV); 1 kHz, open circuit; 1 Pa = 94 dB SPL |
| CONNECTOR | 3-pin male XLR |
| POLARITY | Positive pressure produces positive voltage on pin 2 relative to pin 3 |
| NET WEIGHT | 278 g |
| CONSTRUCTION | Dynamic moving-coil; die-cast metal and hardened steel-mesh grille |
| PHANTOM POWER | Not required for the passive microphone |
| SHOCK ISOLATION | Internal shock-mount system |
| SUPPLIED ACCESSORIES | Stand adapter and zippered storage bag |
| SWITCH VARIANTS | See the exact regional package |
| DIMENSIONS (LENGTH × GRILLE DIAMETER) | 160 × 50 mm, manufacturer drawing |
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