Electro-Voice RE90L Frequency Response, Microphone Placement and Cord Looping, Operation

Frequency Response:

Architects’ and Engineer’s Specifications

The microphone shall be an ultra-miniature, back-electret condenser with an omnidirectional polar pattern. The microphone shall have a frequency response from 50 to 18,000 Hz and a balanced output with a 150-Ohm nominal impedance. The open- circuit output voltage shall be 12.6 mV/pascal. The microphone capsule shall be black: the electronics housing made of black polycarbonate resin. The microphone shall be permanently connected to its electronics module with a 1.8 m ( 6 ft.) length of rugged, three conductor, shielded, miniature audio cable. The microphone shall be supplied with tie clasps and a storage pouch. The Electro-Voice RE90L is specified.

Microphone Placement and Cord Looping

Typical microphone placement is shown in the illustration. For best results, the RE90L should be positioned as close to the mouth as possible. It is important to loop the cable as shown to eliminate cable rustling noise.

Looping the Cable to Eliminate Cable Rustling Noise:

Polar Response:

Powering the RE90L

The RE90L is powered by an external 9- to 52- volt phantom power supply. The electronics circuitry is wrapped with an insulated copper foil for superior emi/rfi shielding. The module is enclosed in a high-strength poly-carbonate resin housing to form a package that is very light-weight and extremely durable for outstanding reliability and long life.

Operation

To operate the RE90L use high-quality balanced cable with 3-pin XLR-type connectors to connect the electronics housing to the mixer input which is providing the phantom power. The connecting cable used should be standard two-conductor shielded type; the shield is used as ground return and must be properly connected to avoid electrical noise.

Windscreen

Use the external windscreen to prevent wind and pop noise.

Microphone Placement:

12000 Portland Avenue South, Burnsville, MN 55337 Phone:952/884-4051, Fax:952/884-0043

www.electrovoice.com

© Telex Communications, Inc. 6/2006

Part Number 535039 Rev C

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 International locations. For customer orders, contact Customer Service at:

+ 1 952 884-4051 Fax: + 1 952 736-4212 For warranty repair or service information, contact the Service Repair department at:

800/553-5992 or 402/467-5321 For technical assistance, contact Technical Support at: 800/392-3497 or 952/736-4656

Specifications subject to change without notice.