Owner’s Manual SR Series Equalizers • SR 231QX • SR 430QX • SR 431QX • SR 830QX • SR 831QX A Harman International Company
Warning For your protection, please read the following: Water and Moisture: Appliances should not be used near water (e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc.) Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. These symbols are internationally accepted symbols that warn of potential hazards with electrical products.
SR Series EQ’s The symbols shown above are internationally accepted symbols that warn of potential hazards with electrical products. The lightning flash with arrowpoint in an equilateral triangle means that there are dangerous voltages present within the unit. The exclamation point in an equilateral triangle indicates that it is necessary for the user to refer to the owner’s manual. These symbols warn that there are no user serviceable parts inside the unit. Do not open the unit.
2 SR Series EQ’s • The core which is colored blue must be connected to the terminal marked N or colored black. • The core which is colored brown must be connected to the terminal marked L or colored red. These units comply with the European “EMC Directive” for emissions and susceptibility. The power cord is terminated in a CEE7/7 plug (Continental Europe). The green/yellow wire is connected directly to the unit's chassis.
SR Series EQ’s INTRODUCTION Congratulations, and thank you for your purchase of DOD equalization components. DOD equalizers are versatile, cost-effective equalization tools for the musician, performer, studio engineer, and sound contractor. Each equalizer allows the user to see a graphic representation of the equalization applied to the audio spectrum, and offers the flexibility to provide solutions to many EQ problems.
4 SR Series EQ’s DOD graphic equalizers offer both 1/3rd and 2/3rds octave models in stereo and 1/3 octave models in mono to meet any need. INSTALLATION Install the equalizer in a rack with the provided rack screws. Route the AC power cord to a convenient power outlet away from audio lines. The unit may be turned on and off using the front panel power switch. Since the units draw a relatively small amount of current during idle, they can be left on continuously.
SR Series EQ’s APPLICATIONS DOD graphic equalizers can be used wherever modification of the frequency contour of a sound or sound system is needed. A graphic equalizer offers a solution to many common sound problems, both large and small. Also, creative experimentation on the part of the user can produce some nice results.
6 SR Series EQ’s MUSICAL INSTRUMENT APPLICATIONS A. Putting an equalizer in line with a musical instrument allows you to modify the sound of the instrument. You can brighten the sound, add body to a thin sounding instrument, or you can give the sound a totally different character. B. An equalizer allows you to eliminate unwanted sounds, such as the 60 cycle hum from a badly grounded sound source. STUDIO APPLICATIONS A graphic equalizer is one of the most useful tools in the sound engineer's bag.
SR Series EQ’s OPERATION FRONT PANEL FUNCTIONS DESCRIPTION POWER SWITCH: Turns the power to the equalizer on or off. EQUALIZER SLIDERS: Each one of these linear potentiometers will boost or cut its noted frequency by +/- 12 dB. When all the sliders are in the center detented position, the output of the equalizer is said to be flat. The numbers marked over the top of each slider represent the center frequency that each band will control.
8 SR Series EQ’s ATTENTION: DO NOT USE BOTH THE BALANCED AND UNBALANCED INPUT/OUTPUT JACKS TO A CHANNEL AT THE SAME TIME. Using more than one connector at a time for the input/output pair can unbalance balanced lines, cause phase cancellation, short a conductor to ground, or cause damage to other equipment connected to the equalizer.
SR Series EQ’s DOD WARRANTY 1. The warranty registration card must be mailed within ten days after purchase date to validate this warranty. 2. DOD warrants this product, when used solely within the U.S., to be free from defects in material and workmanship under normal use and service. 3.
10 SR Series EQ’s SR 430QX SR 431QX SR 830QX SR 831QX SR 231QX
DECLARATION OF CONFORMITY Manufacturer’s Name: DOD Electronics Corporation Manufacturer’s Address: 8760 S.
V ISIT DOD E LECTRONICS ON THE WORLD W IDE W EB HTTP :// WWW. DOD. COM AT DOD E LECTRONICS C ORPORATION 8760 S OUTH S ANDY PARKWAY S ANDY, U TAH 84070 T ELEPHONE 801-566-8800 FAX 801-566-7005 I NTERNATIONAL D ISTRIBUTION 8760 S OUTH S ANDY PARKWAY S ANDY, U TAH 84070 T ELEPHONE 801-568-7638 FAX 801-568-7642 DOD IS A R EGISTERED T RADEMARK OF H ARMAN M USIC G ROUP I NC .
