User manual NUMARK DM900

[. . . ] Power Cord Protection - Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed on or against them. When removing the cord from a power outlet be sure to remove it by holding the plug attachment and not by pulling on the cord. Object and Liquid Entry - Take care that objects do not fall into and that liquids are not spilled into the inside of the mixer. Damage Requiring Service - This product should be serviced only by qualified personnel. [. . . ] Pay attention to the color-coded, labelled Input and Output jacks. · ALWAYS remember: "TURN AMPS O N LAST AND OFF FIRST". Begin with master faders or volume controls on minimum and the amplifier gain/input control(s) down. Wait 8 to 10 seconds before turning up the volume. This prevents transients which may cause severe speaker damage. · Use restraint when operating controls. Rapid adjustments could damage speakers due to amplifier clipping. · Avoid amplifier "clipping" at all costs: this occurs when the red LEDs (usually on the front panel of most professional power amplifiers) start flashing. "Clipping" is when the power amplifier is distorting and working beyond it's limits. Amplifier distortion is THE major cause of speaker failure. · To prevent fire or shock hazard, do not expose the unit to rain or moisture. Never place cans of beer, soda, glasses of water or anything wet on top of the mixer! A NOTE ON CABLES: Make the input and output connections with readily available low-capacitance stereo cables. Quality cable makes a big difference in audio fidelity and punch. See your Numark dealer or an electronics or audio specialist store if you are not sure which cables to get. Numark - The Proven Leader in DJ Technology ©1997 Numark Industries 5 http://www. numark. com DM900 DM900 FRONT PANEL DIAGRAM. . . 8 5 2 3 2 3 1 6 7 4 DM900 REAR PANEL DIAGRAM. . . 5 1 5 2 7 6 43 4 3 Numark - The Proven Leader in DJ Technology ©1997 Numark Industries 6 http://www. numark. com DM900 GUIDED TOUR OF FEATURES AND OPERATING INSTRUCTIONS. . . CROSSFADER SECTION If the D M 9 0 0 is your first mixer, please read this entire manual before you begin operation. If you are an experienced DJ, simply replace your old mixer. The D M 9 0 0 can be rack-mounted or used as a free-standing unit (four 6" rack unit spaces). The Replaceable Crossfader achieves clean segues between the two input channels. "Hard left" selects Channel 1. "Hard right" selects Channel 2. With the crossfader centered both assigned channels are live. Use the crossfader for fast and seamless segues from one selected channel to the other. N o t e : The crossfader is user replaceable in case of failure. Simply unscrew the two large screws which hold it in place, lift it out and disconnect it's cable. [. . . ] You can connect stereo audio from HiFi VCRs, cassette and reel-to-reel tape decks, DAT machines, CD players, laser discs, tuners, even synthesizers or other mixing consoles. N O T E : Plug mono audio sources into both Left and Right inputs using a "Y" cable connector. Use this to allow line level equipment to be plugged into your phono inputs. The Tape Outputs are low-impedance unbalanced RCA jacks which output the program mix and allow you to connect any recording device. [. . . ]