User manual PEAVEY IMPULSE 500P

[. . . ] 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. CAUTION: To reduce the risk of electric shock, do not remove cover. 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. [. . . ] While music will often benefit from the extra low end the subwoofer adds to the pairing, vocals do not maintain their clarity as well when additional bass output is added. By using the mic input on the Impulse 500P, the vocals in the mic will not get any additional bass boost, and the microphone input filtering will aid in maintaining vocal clarity. There is less tendency for very low frequency feedback, which could damage the powered subwoofer. see the Impulse 500P owner's manual , the Rear Panel Description , Mic Input portion , and the Use of the Impulse 500P section , the Use of the Mic Input with Simultaneous Music playback portion. If the Impulse 500P Subwoofer is used as part of a full PA sound system, and multiple microphones are run into a mixer, and into the Impulse 500P Subwoofer, it might be helpful to make sure that the subwoofer's output is not set too high, so that the vocals are not made to sound too boomy or muddy. Avoiding bass boost on the mic channels, or even using a little bass cut on each mic might help avoid vocal boominess as well. APPLICATIONS The Impulse 500P Subwoofer has a variety of applications when used in conjunction with a full range system, such as sound reinforcement, or for musical playback. A typical signal source for the line level inputs (5) of the Impulse 500P would be a sound reinforcement mixing console (mixer), or the output from a CD player or tape deck. Make sure the input plugs are fully seated in the input jacks (5) on the rear panel of the Impulse 500P Subwoofer. Check to see that the proper inputs are being used (5), and not the high pass filter output (7), for line level input signals. Make sure that a power amp has not been plugged into the input jacks of the Impulse 500P Subwoofer. If an extension cord is being used to provide the AC power to the unit, is it of sufficient current capacity and not also being used to supply power to any other units?Bass boost and infrasonic roll off have been applied, and the system has a nominally flat response, and should require little, if any, additional EQ. if excessive additional bass boost or EQ boost have been added externally to the Impulse 500P , it may cause premature overload at high SPL's. Try backing off of any external (mixer, rack Equalizer) EQ and see if that clears up any tendency to distort. Finally, realize that even though the Impulse 500P Subwoofer is an extremely powerful and high output unit, it does ultimately have limits, and it may need additional powered units to provide enough sound output or coverage. In this case, try turning the mixer levels down a little to see if that clears things up. If, after checking all the listed things to check, and anything else you can think of to check safely, and the system still exhibits problems, carefully note all conditions and check with your Peavey dealer for advice. CARE and MAINTENANCE Your Impulse 500P Subwoofer is a sturdy and durable product, which will provide years of reliable use if properly cared for. Use common sense and read the safety warnings to avoid hazardous operating conditions. Sunlight/Heat Avoid prolonged exposure to direct sunlight, as this may cause the unit to overheat and thermally shut off. excessively hot operating conditions can also cause a thermal shutdown. [. . . ] Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. Unplug this apparatus during lightning storms or when unused for long periods of time. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. [. . . ]