User manual DOD FX67

[. . . ] Do not attempt to service the unit yourself. Refer all servicing to qualified personnel. Opening the chassis for any reason will void the manufacturer's warranty. If liquid is spilled on the unit, shut it off immediately and take it to a dealer for service. [. . . ] FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING: Water and Moisture: Appliance 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. POWER SOURCES:The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance. GROUNDING OR POLARIZATION: Precautions should be taken so that the grounding or polarization means of an appliance is not defeated. POWER CORD PROTECTION: Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance. SERVICING:The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel. 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. The units offer up to 12 dB of cut or boost per band with a switchable low cut filter for each channel. 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. DOD equalizers generate very little heat during operation and thus do not need to be specially ventilated or cooled. The units should not, however, be subjected to high temperatures for extended periods. Although the unit's chassis is shielded against radio frequency and electromagnetic interference, extremely high RF and EMI fields should be avoided. The XLR inputs and outputs are for balanced connections. Only the 1/4" phone plug inputs and outputs can be used for unbalanced connections. Use only one input/output connector pair at a time. Using more than one input/output connector pair at a time can unbalance balanced lines, cause phase cancellation, short a conductor to ground, or cause damage to other equipment connected to the equalizer. FOR BALANCED 1/4 " TRS PHONE PLUG CONNECTION - Wire the connectors as follows: Phone Plug tip ring sleeve Connection : high : low : ground FOR 1/4" MONO PHONE PLUG CONNECTION: Phone plugConnection tip : high sleeve : ground XLR CONNECTORS - XLR type connectors are wired as follows: XLR Balanced Unbalanced Connector Connection Connection pin 1: pin 2: pin 3: ground high low ground high or hot ground Once the graphic equalizer has been installed and adjusted for the required equalization and level, an optional security panel can be installed to keep unauthorized persons from changing settings. 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. [. . . ] Input impedance for a balanced connection is 80 kOhms. UNBALANCED INPUT: Accepts an1/4" plug (see section on installation for wiring connections). Input impedance for the unbalanced connection is 40. BALANCED OUTPUT:Accepts a standard XLR type connector [see section on installation for wiring connections]. [. . . ]