YORKVILLE M1610 Owner's Manual

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YORKVILLE M1610 Owner's Manual Manual pdf 10 page image

8Keep the Main Speakersbetween mics and audienceto minimize feedbackDO NOT place MainSpeakers in back ofthe stage!!General Operating Instructions1. Connect the AC power cord to a 120 Volt AC grounded power outlet (220 to 240Volts in export units).2. Turn the MAIN and MON master controls to 0 initially, then switch on the Power.3. You can connect low-impedance microphones to the 3-pin XLR type MIC inputs.4. Connect high-impedance mics or mono line-level signal sources (mixer line outputs,keyboards etc.), to the ¼-inch balanced LINE IN jacks on channels 1-4, 7/8 and9/10. Connecting more than one signal source to both XLR and ¼-inch inputs is notrecommended; this includes stereo sources (if you try to connect a stereo source to amono channel using a Y-adapter, you may get distortion). The ¼-inch channels 5 and6 are optimized for musical instruments and are not balanced.5. Connect stereo sources (CD players, tape decks, stereo keyboards etc.) to channels 7/8 or9/10 via the stereo ¼-inch balanced LINE IN type inputs. Once again, connect only onesignal source per channel, and use shielded patch cords for all pre-amp connections. If amonitor send or EFX send is not required use the Tape/CD input for your stereo source.6a. Use 18-gauge (or heavier) speaker cables, using shielded patch cords to connect speak-ers will waste power by heating up. Connect one or two 8-ohm PA speakers to theSPEAKER outputs on the rear panel.Note: To deliver maximum power to a pair of 4-ohm PA speakers, connect only onespeaker to each amplifier.6b. If you are using a separate power amplifier for the stage monitor speakers, connect themain speakers (as in #6, above) and run a shielded patch cord from the Pre-EQ or Post-EQ Out jack to the input of the monitor power amp. If you are using a separate graphicequalizer for the monitors run a shielded patch cord from the Pre-EQ or Post-EQ OutOUT jack to the input of the EQ. Then, another one from the EQ’s output to the input ofthe monitor power amp.7. Position your main PA speakers at the front of the stage, pointing directly at theaudience. Position your monitor speakers on the stage floor; preferably to one sideof the mic stands, pointing up at the performer. Try to use cardioid or uni-directionalmics to help reduce the threat of feedback through the monitors (avoid having theback of the mic pointing directly at the speakers).8. During a sound check and with the band playing, make the following control adjustments:i. On mono channels, you need to set the TRIM appropriately. To set the TRIM, first turnthe channel LEVEL control down, with a normal signal (present at the input) adjustthe TRIM control until the green LED flashes only during the peaks in signal. Now youcan use the LEVEL control to set the channel volume level.ii. Set the channel Lo, Mid, and Hi EQ controls at center. Set the channel LEVEL, MON,and EFX controls to seven. The Graphic EQ sliders and rotary shelving controls shouldbe set at the center position at this point as well.iii. Turn the MAIN and MON Master controls up to give the desired volume, the MAIN EFXreturn to around 7. Effects in the monitors tend to increase the possibility of feedbackso if the band insists, set the MON EFX return to 5.iv. Adjust the channel MON control/s to give each performer the desired volume levels.Use the MON master control to adjust the overall monitor level.v. Use the channel LEVEL control/s to balance each channel’s volume level through themain PA speakers.vi. Turn up the EFX controls on those channels requiring the selected Digital Effect. Typically, thelead and harmony vocal channels would be good candidates for effects. Reverb can be used onother channels or on recorded music, but should be used sparingly.9. Feedback during a performance is usually caused by one of the stage monitors. Themain PA is less likely to feedback because the mics are usually a good distance fromthe main PA speakers. Therefore, if you’re using monitors, and feedback occurs, try thefollowing procedures:i. Turn the MON Master down until the feedback stops.ii. If a graphic equalizer is patched between the MON output and your monitor poweramp, adjust the EQ sliders individually to determine which frequency band will reduce thepotential of feedback.iii. Now turn the MON Master back up. If the feedback returns, reset the sliders to theiroriginal positions and retry using different sliders.iv. In the rare case of main system feedback, follow the above type of procedure, but usethe MAIN Master and the built in Graphic EQ.Input Wiring tips:1. For all input connectiv-ity use shielded wire only.Cables with a foil shield or ahigh-density braid are better.2. When changing inputconnections, turn down thelevel controls on the mixer toeliminate pops and thumpsout of the loudspeakers asthe cable contacts the mixer.3. Keep input connectioncables as short as possibleto minimize noise and hum.