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DATA |
Production: | Current |
| Hire stock: | Yes | |
| New stock: | Yes | |
| Used stock: | No |
ELECTROVOICE RE20 MICROPHONE
SPECIFICATIONS:
Element: Dynamic
Frequency Response:45-18,000 Hz
Polar Pattern: Cardioid
Impedance: 50, 150 and 250 ohms
changed by solder connections
Sensitivity,
Open Circuit Voltage: 1.5 mV/Pascal at 1,000 Hz
Power Level: - 57 dB at 1,000 Hz
(0 dB = 1 mW/Pascal)
Case Material: Steel
Dimensions: 216.7 mm (8.53 in.) long,
54.4 mm (2.14 in.) widest diameter,
49.2 mm (1.94 in.) body diameter
Finish: Fawn beige micomatte
Net Weight: 737 g (1 lb, 10 oz) without cable
The microphone shall be a cardioid type with integral blast filter protecting all acoustic openings. The blast filter shall also serve as a shock mount for the internal microphone element. The microphone shall have a wide-range uniform frequency response from 45 to 18,000 Hz. An integral passive network shall be provided so that when the filter switch is in the "on" position, low frequency response shall tilt down 4.5 dB from 400 to 100 Hz. With switch in "off" position, microphone shall be essentially "flat" from 80 to 6,000 Hz, with a broad 2.5 dB rise in response from 6,000 to 14,000 Hz, and nominally down 3 dB at 18,000 Hz. Response below 80 Hz shall be nominally down 3 dB at 45 Hz. Output level shall be - 57 dB (0 dB = 1 mW/Pascal). Nominal impedances of 50, 150, and 250 ohms shall be selectable by changing an internal solder connection. Response at any angular position away from the major axis shall be essentially similar to the response on the major axis, but attenuated uniformly at all frequencies by an amount appropriate to that angular position. Attenuation at frequencies from 45 to 10,000 Hz (refer to major axis signal value) shall exceed 15 dB at 180° from major axis in any plane. Attenuation above 10,000 Hz shall exceed 13 dB. Polar characteristics shall be sufficiently uniform in all planes so that it is, effectively, a cardioid of revolution. There shall be a shield to prevent dust and iron particles from reaching the diaphragm. The case shall be made of steel.
The RE20 is supplied wired for 150 ohms impedance.
DESCRIPTION AND APPLICATIONS
The Electro-Voice Model RE20 is a Dynamic professional quality dynamic cardioid microphone
created specially for recording, broadcast, and sound reinforcement applications requiring
essentially flat response over a very wide frequency range. The wide frequency response,
coupled with excellent transient response, makes the RE20 easily comparable to the finest
condenser cardioid microphones. Typical applications include kick drum, toms, bass guitar,
brass, studio voice-over.
The RE20 is virtually free of bass-boosting "proximity effect" when used close, because in design it is a Continuously Variable-D microphone. An easily operated "bass tilt down" switch corrects spectrum balance for use in long-reach situations, or other applications where bass attenuation is needed. A true cardioid microphone, the RE20 offers greatest rejection at 180° off axis - directly to the rear of the microphone. Directional control is so effective that the frequency response is nearly independent of angular location of sound source, creating virtually no off-axis coloration yet providing greatest possible rejection of unwanted sounds. An integral blast and wind filter covers each acoustic opening on the RE20. At recording sessions and on stage, singers can "close talk" the microphone, singing with their lips almost touching the grille screen with no worry of "p-pops" or excessive sibilance. Part of the filter also shock mounts the internal microphone element, reducing the transfer of vibrations from external sources. Using the mechanical nesting concept of design - the internal transducer parts are nested one within another - the RE20 is able to withstand all rigors of professional use.
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