Electrovoice ND-257B Dynamic Microphone - Vintage U.S.A. 1991
The Electro-Voice N/D 257B is a vintage cardioid dynamic microphone, part of the popular N/DYM series introduced by EV in the 1980s and 1990s. This series features neodymium magnets, which offer a more powerful output signal than traditional dynamic microphones.
Serial Number Analysis: S41835350
S: Production line or factory identifier.
41: Often indicates the year of production within a specific decade (in this case, 1991).
83: Indicates the week of the year or an internal lot code.
5350: Sequential unit number.
Technical Specifications
Element Type: Dynamic.
Magnet: N/DYM® (Neodymium).
Polar Pattern: Cardioid (very effective at rejecting off-axis sounds).
Frequency Response:
Close response: 35 Hz – 15,000 Hz (for close use).
Far response: 70 Hz – 15,000 Hz (at a distance greater than 60 cm).
Sensitivity (Open Circuit Voltage): 3.1 mV/Pascal.
Impedance: 150 Ohms (balanced).
Construction and Design
Material: Durable die-cast metal housing.
Finish: Dark Gray / Black (Non-reflecting black).
Grill: Memraflexâ„¢ (an ultra-durable grille that resists easy deformation).
Connector: 3-pin XLR.
Weight: Approximately 200 grams.
This item is sold As-Described
This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.
| Listed | 2 months ago |
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| Condition | Very Good (Used) Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more |
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