RE20

Variable-D

®

Dynamic Cardioid

Microphone

Key Features:

• Favorite of broadcast show hosts and voiceover studios

• Ideal for instrument recording, especially kick drums and acoustic guitars

• Studio condenser response yet no powering required and immune to overloading

• Large Acoustalloy diaphragm and low-mass aluminum voice-coil

• Dual-ported, continuously Variable-D® with minimal proximity effect

• Steel case and hum-bucking coil provide exceptional magnetic shielding

General Description:

The Electro-Voice RE20 is a professional-quality dynamic cardioid microphone created specially for recording, broadcast and soundreinforcement applications requiring essentially flat response over a very wide frequency range. The wide frequency response, coupled with excellent transient response, make the RE20 easily comparable to the finest condenser cardioid microphones and 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

180º off axis - directly to the rear of the microphone. Pattern control is so consistent that the frequency response is nearly independent of angular location of the 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. In recording sessions or 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. The exceptional performance of the RE20 is achieved by using a large Acoustalloy diaphragm in combination with an exceptionally low-mass aluminum voice coil. Using this diaphragm assembly, the RE20 is capable of reproducing extremely high sound pressure levels with no fear of the overload and distortion often experienced with phantompowered condensers. The RE20 will also continue to function flawlessly in high humidity and elevated temperatures that would seriously degrade competitive condenser microphones. A massive steel housing and effective hum-bucking coil assure the RE20’s resistance to magnetically induced hum and noise. This means the RE20 can be used successfully in situations where other microphones would experience unacceptable levels of hum and buzz.

Technical Specifications:

Element Type: Dynamic

Frequency Response: 45 Hz - 18,000 Hz

Polar Pattern: Cardioid

Impedance: 150 ohms balanced

Sensitivity, Open Circuit

Voltage, 1 kHz:

1.5 mV/pascal

Hum Pickup Level, typical

(60 Hz/1 millioersted field):

-130 dBm

Polarity: Pin 2 will be positive referenced to Pin 3 with positive pressure on diaprhagm

Case Material: Steel

Finish: Fawn beige

Dimensions: Length = 8.53” (216.7 mm)

Widest Diameter = 2.14” (54.4 mm)

Body Diameter = 1.94” (49.2 mm)

Net Weight: 1 lb, 10 oz (737 g)

Shipping Weight: 3 lb, 4 oz (1474 g)

Accessories Included: 81715 stand clamp

Optional Accessories: 309A shock-mounted stand adapter for use with floor stand or recording boom

By exploiting the strength of its steel housing and employing a mechanical nesting concept, EV designers have created an exceptionally rugged microphone with superior handling noise rejection ideally suited for professional uses.

Frequency Response: Wiring Diagram:

General Description (cont’):

The bass-boosting proximity effect common to most directional microphones when used close to the sound source, is eliminated in the

RE20. This is accomplished via the application of the EV-exclusive

Variable-D® technology. By controlling the effect of microphone proximity, the RE20 can be located very close to sound sources without a loss in clarity or definition making the RE20 ideal for tight vocals and challenging instruments. It can be used inside bass drums, on acoustic guitars, and is found in voice booths and broadcasting studios everywhere.

Polar Response:

Architects’ and Engineers’

Specifications:

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 45-18,000

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 400-100 Hz. With switch in “off” position, microphone shall be essentially “flat” from 80-6,000 Hz, with a broad 2.5 dB rise in response from 6,000-14,000 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 1.5mV/Pascal. Nominal impedance of

150 ohms. 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 45-10,000

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 microphone shall have a maximum diameter of 54.4 mm (2.14 in.), a body diameter of 49.2 mm (1.94 in.) and a length of 216.7 mm (8.53 in.). Finish shall be a nonreflecting fawn beige. A stand adapter shall be supplied. The Electro-Voice

RE20 is specified.

Dimension Drawing:

RE20 Part Numbers

• 16207816 RE20, Dynamic Cardioid Microphone

Electro-Voice

®

12000 Portland Avenue South, Burnsville, MN 55337

Phone: 952/884-4051, Fax: 952/884-0043 www.electrovoice.com

© Bosch Communications Systems

Part Number 534678 Rev G

07/2010

U.S.A. and Canada only. For customer orders, contact Customer Service at:

800/392-3497 Fax: 800/955-6831

Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:

+ 49 9421-706 0 Fax: + 49 9421-706 265

Other Internatonal locations. For customer orders, Contact Customer Service at:

+ 1 952 884-4051 Fax: + 1 952 887-9212

For warranty repair or service information, contact the Service Repair department at:

800/685-2606

For technical assistance, contact Technical Support at: 866/78AUDIO

Specifications subject to change without notice.