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Фрагмент инструкции
Keep this unit away from water. If water or other liquids are spilled on or into this unit, unplug the power cord immediately from the wall socket (with DRY HANDS) and get a qualified service technician to check it out before using. Keep this unit away from heaters, radiators and other heat producing devices. DO NOT ATTEMPT TO SERVICE THIS UNIT. ONLY A QUALIFIED SERVICE TECHNICIAN SHOULD OPEN THIS UNIT FOR SERVICING. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN The lightning flash with arrowhead symbol, within an equilateral triangle, The exclamation point within an equilateral triangle is intended to alert the is intended to alert the user to the presence of uninsulated 'dangerous user to presence of important operating and maintenance (servicing) in- voltage' within the product’s enclosure that may be of sufficient magni- structions in the literature accompanying the appliance, tude to constitute a risk of electric shock. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL KEEP IT CLEAN: Dust, dirt and debris can interfere with the performance of this product. Make a special effort to keep this unit away from dusty, dirty environments. Cover the unit when not in use. Dust it regularly with a soft, clean brush. Careful attention to these details will be time well spent, and this product will reward you with years of trouble free operation. 1 Front-Panel Description Channel Strip 1. Peak LED This light indicates that the level coming into the mixer is too high, which will result in distorted sound. It works in conjunction with the GAIN control (2). 2. Gain control This controls the level coming into the mixer from the instrument or microphone. It is used to bring the incoming signal to the optimum internal operating level of the console. Setting up a channel is very simple: plug the instrument/ mic into the mixer, and play/sing at the sort of level you would during a performance. Adjust the gain control until the light flashes only occasionally during the loudest parts of the program. The adjustment ensures the best sound to noise ratio possible. If the gain is too low, the ratio drops; if the gain is too high there will be distortion. Some instruments, such as keyboards and guitars, have their own output level control. In some cases it may be desirable to leave the output and input gain of the mixer with room to spare, so that you can crank up the instrument if necessary. 3. High EQ The DM Series has a three-band EQ. This control sets the level of the high frequency portion of the sound. In technical terms it is a 15dB boost/cut shelving at 10kHz. This is useful for reducing sibilance or adding brightness to cymbals. 4. Mid EQ This boosts/cuts the middle frequencies, which is useful for improving guitar tones or reducing nasal vocals, among other things. This is a peaking/dipping control giving 15dB boost/cut centered around 1000Hz. 5. Low EQ This gives 15dB of boost/cut shelving at 100Hz. It can help reduce mic rumble or boost kickdrums. The key with EQ is to use it sparingly - too many large boosts everywhere can result in a mushy sound. Remember that you can cut as well as boost. It is possible to emphasize bass sounds by cutting the high • and mid instead of just boosting the lows. Too many boosts can also overload the circuitry and result in distortion. 6. AUXes 1,2 and 3 These three knobs allow you to create three separate mixes for monitoring or for outboard effects. AUX 1 is pre-fader, which means that the signal is tapped before the channel fader, and is therefore unaffected by any changes to the fader level. This is typically used as a monitor send in a live show; the musicians hear a different mix than the audience. The monitor mix is constructed to allow the musicians to stay in time and therefore the definition of individual instruments is critical. Effects which can sound nice but ‘mask’ the sound are not present in the monitor mix, and cues and count-ins can still be heard by the musicians when the main outputs are faded down. AUXes 2 and 3 are post-fader. These types of AUX sends are typically used for reverb, delay and other effects. All the instruments which require a particular treatment are mixed together and sent to the outboard effect. The effected sound is then returned to the mixer using the AUX returns or input channels. The reason for using a post-fade AUX send is that the sound going to the reverb is then dependent on the various channel fader levels. When the lead guitar is faded down, its accompanying reverb is reduced proportionally. o ■2£l. "3&— •40 •50 Æ_ 2 7. Pan The pan control sets the stereo placement of each channel. All the channels on the DM Series are mono. With the pan control, each instrument can be placed at any location from hard left to hard right and anywhere in between. If you need to input stereo instruments into the DM Ser...