User manual PEAVEY CEQ 280A

[. . . ] Cover for CEQ 280a Peavey Electronics Corporation 1 Intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. Before using this appliance, read the operating guide for further warnings. Este símbolo tiene el propósito de alertar al usuario de la presencia de "(voltaje) peligroso" que no tiene aislamiento dentro de la caja del producto que puede tener una magnitud suficiente como para constituir riesgo de corrientazo. [. . . ] The mic is an omnidirectional condenser mic with a wide, smooth response. The compensation curve for this mic is stored in the CEQ 280a and is selected by placing the cursor next to "AVR-1" in the RTA mic selection display. It is possible to use other microphones with the CEQ 280a by selecting "CREATE" in the mic selection display then entering its frequency response. ThecharacteristicsofgoodRTAmicrophonesarethattheyareomnidirectionalwithawide, smoothresponse. Most directional microphones have several characteristics that make them poor choices. First, directional microphones 20 CEQTM 280a seldom have directional characteristics that are the same at all frequencies. Most become almost omnidirectional at low frequencies, which causes the frequency response to change as a function of how much sound enters the rear of the mic. Next, directional mics have a characteristic called "proximity effect. " This causes the bass to be boosted as the source gets close to the mic. Because most vocal mics are designed to be used up close, the low frequency response is reduced to flatten the response up close. Finally, mics intended to be hand-held often have reduced sensitivity at low frequencies to reduce handling noise. 7. 2 Creating a Microphone Curve Although it is recommended you use the Peavey AVR-1 microphone for automatic equalization, it is possible for youtocreateanewmicrophonecurveifyouhavethemicrophonefrequencyresponsecurvefromthemanufacturer of the microphone you intend to use. Note: Whatisneededforthisprocedureisthetrue microphonefrequencyresponsecurvefromthemanufacturer, not the optimized frequency response curves found in advertisement copy for a microphone. Use the left and right arrow buttons to position the cursor alongside "CREATE. " NEXT MIC: AVR1 INSTR CURVE1 CURVE2 EXIT CURVE3 CURVE4 CURVE5 *CREATE 4. Pressthe"NEXT"softbutton. NEXT EXIT Create new mic curve from: *INSTR The CEQ 280a defaults to "INSTR" because it is a flat curve. You can change this to use any of the stored curves as a starting point. Use the up and down arrow buttons to select the curve with which you want to start. Press the "NEXT" soft button and begin to enter your microphone curve. NEXT //////////////////////////// 0dB EXIT / //////////////////////////// 32Hz 6. When you have completed entering the curve, press the "NEXT" soft button to store the curve. STORE EXIT Store mew mic curve to: *CURVE1 7. Select from CURVE1 through CURVE5 as the storage location for your new microphone curve and press the "STORE" soft button. The following screen will be displayed briefly: STORE COMPLETE Peavey Electronics Corporation 21 7. 3 Room Target Curve Selection/Creation What is a target response curve?The target response curve is the system frequency response you wish to achieve after equalization. High frequencies are absorbed by air at a greater rate than the low frequencies. There are few people who are used to listening to a snare drum or vocalist from one inch away. [. . . ] Peavey's liability to the original purchaser for damages for any cause whatsoever and regardless of the form of action is limited to the actual damages up to the greater of Five Hundred Dollars ($500) or an amount equal to the purchase price of the product that caused the damage or that is the subject of or is directly related to the cause of action. This limitation of liability will not apply to claims for personal injury or damage to real property or tangible personal property allegedly caused by Peavey's negligence. For information on service under this warranty, call a Peavey customer service representative at (601) 483-5376. 42 CEQTM 280a IMPORTANT SAFETY INSTRUCTIONS WARNING: When using electric products, basic cautions should always be followed, including the following: 1. All safety and operating instructions should be retained for future reference. [. . . ]