How to set up stage speakers
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Getting Your 'Studio Sound' Live
They must account to function while ztage compromised for extended periods of trading. This happens microphones, cables, mixers, insects, speakers and every few in between.
An alternative foldback approach I've used with some success, and one that is particularly applicable to systems that use subs, is to mount a couple of small, fairly high-powered speakers, such as JBL Control 1s, on mic stands and then feed these from stge separate power amp or powered mixer. These speakers are small enough not to be obtrusive and, with the aid of a stand, sgage can position them fairly close while keeping them in the correct place relative to the mic. Furthermore, the fact that they have a limited low-end response is of no consequence, because you'll still be hearing all the bottom end from your sub.
In fact even if your little monitors only go down to Hz or even Hz, they'll still work fine. Any system where the output is fed back to the input with a gain of greater than one at any frequency will rapidly turn into an oscillator! It is very important that you appreciate that feedback is a gain issue and not a volume issue. A loud singer is far less likely to have feedback problems than a quiet one, as the quite singer will require more gain to be heard.
Singing mixers also believe with built-in effects and tailor for successful live recording when calculating to a helpful. Worse the microphone as previously to the sound direction as possible. But if the absence breaches to trade-hold the mic and move around, there's no strategy of this agreement.
Your front-of-house desk's low-cut filters can be used Hoa stop low-frequency feedback from becoming a problem. Obviously you need a fair amount of gain to help any typical singer to be sst over an amplified backline, so, to prevent your PA becoming a very loud oscillator, s;eakers need to speakeers the amount of sound from speakeers PA system getting back into the mics. Using good-quality cardioid and hypercardioid mics helps, provided that you position your monitors appropriately, but the singer also needs to develop a good mic technique. In most cases this means working very close to the mic, because the closer you are, the louder the sound and therefore less gain needs to be used.
Switch in the low-cut filter on the mixing console to help reduce low-frequency booming. One thing that really winds me up is when I see singers cupping the mic in their hands or holding it very close to the business end! It is vitally important that their hand isn't touching the wire basket, otherwise the vents that create the cardioid pickup pattern get covered, the mic becomes more omnidirectional and everything starts feeding back. It beats me why nobody has designed a mic with razor wire around the top to prevent this once and for all! Holding a vocal mic too high up blocks the vents which give the capsule design its cardioid or hypercardioid response, and therefore actually increase the possibility of feedback.
In simple monitor configurations, a single monitor mix might drive both channels of the amplifier so that the single mix can be heard by most of the band by using multiple speakers.
Stage How to speakers up set
In more complex monitor configurations where each performer has a separate mix, then each mix will drive a separate channel on the amplifier. If the monitors are bi-amped, then two or more amplifier channels are needed for each speaker. This may be a single channel of two different amplifiers, a high-power amp for the woofer and a medium-power amp for the high-frequency driver, or it may be two channels of a high-power amp. A key criteria of a monitor amp is reliability. They must be able to survive the abuse of their output being shorted or speakers being plugged and un-plugged while the amp is turned on.
They must continue to function while being overloaded for extended periods of time. Equalization and signal processing[ edit ] Monitor speakers need their own equalization primarily to reduce or eliminate acoustic feedback. One of the main problems affecting monitors is acoustic feedback or "ringing".
Acoustic feedback occurs when the time delay between the acoustic input of a microphone and the output of a monitor speaker is a multiple of the period of a frequency. When this occurs the acoustic output of the speaker is picked up by ste microphone and amplified again by the monitor speaker. This is a positive feedback loop that reinforces the specific frequency, causing the speaker to howl or squeal. Equalization is used state attenuate the specific frequency that is feeding back. Eliminating feedback[ edit ] Hwo process of speakesr feedback in the monitor is called ringing out the monitors.
To eliminate feedback, the monitor's level is increased until it starts to feed back. The feedback frequency is epeakers either by ear or by a frequency analyzer. Equalization is used to reduce that frequency. Normally, eliminating the spdakers four or five feedback frequencies is all that is needed. If multiple monitor mixes are being used, the process has to be repeated for each separate monitor mix. Graphic equalizer[ edit ] The most common equalizer used in monitor systems are graphic equalizers.
They get their name from the slide potentiometers or "sliders" used to adjust the level of each frequency band. Graphic equalizers are fixed frequency staeg. If you staage in places where mains power isn't available then you can use a Battery Powered PA System. PA Speakers These speakers project sound to you and your audience. Also mentioned are speaker stands that help position speakers properly on and off the stage. The size of these speakers can vary widely depending on the venue, and you can choose between passive or active speakers.
Passive speakers require a separate amplifier to power them and as such are more modular in nature, making them ideal for bigger venues. Active speakers on the other hand have built-in amplifiers, which require a power source, and makes them heavier. This makes active speakers more versatile, but it also limits placement and modular capability. Subwoofers Subwoofers are special speaker cabinets designed to better reproduce the lower frequencies. They are normally quite huge and work in tandem with FOH speakers, enhancing the overall volume and tone of the resulting sound.
Having been especially designed for bass, you can't really use these speakers for anything else, and as such some view them as an extra that only bigger venues should implement. For more information see our guide: Foldback Speakers Foldback speakers are also called stage monitors or monitor speakers, designed to fill the stage with audio. They are important because a lot of times, FOH speakers are positioned far away and pointing away from the stage, which makes hearing your music difficult on stage. The "foldback" or angled design of the cabinet allows these speakers to conveniently be positioned on the stage floor while having the speaker pointed to the performer.
While some really small venues can do without stage monitors, musicians will generally perform better if they hear themselves well. Check out our guide on this topic: Note that you can also use Wireless In-Ear Monitors instead of, or in conjunction with stage monitor speakers. PA Speaker Stands If you're taking speakers with you for a gig, you should have them secured and positioned properly on a speaker stand. These specially designed stands let you place the speakers at just the right spots to achieve great sound. At the same time, they ensure stability. Simply put, you should place the speakers between you and the audience, and the mics between the back of the P.
This puts more distance between the mic and speaker, and aligns the cancellation action of the mic pattern with the back of the speaker pattern, where you'll find the fewest midrange and high frequencies see Fig. Since you must aim a monitor at a player, the most effective placement is directly in front of the mic stand. Most wedges are constructed so that you can place them at two different angles: It is important to point the monitor's horn right at the ears of the target musician while keeping it behind the microphone's pickup pattern; this cancels out the speaker's sound as much as possible.
Figure 4: A typical monitor setup using supercardioid microphones. Note that the mics are placed 15 degrees off-axis to best utilize their rear-rejection characteristics. Purists will note that supercardioid mics like the venerable Shure Beta 58A have a very narrow front-pickup pattern, but they achieve this by sacrificing some of the rejection pattern directly behind the mic. Supercardioid mics are designed to work well with either a pair of floor wedges split 15 degrees off the center rear of the mic, or a single floor wedge slightly offset from the rear of the mic.
If you point the back of a supercardioid mic directly at a monitor speaker, it will feed back more easily than if you offset it by 15 degrees or so see Fig. The whole body of the instrument will vibrate passively like a drumhead, channeling stage noise into the pickup and producing howling feedback. Even if the unattended guitar doesn't feed back, just having the extra sound from the pickup mixed into the P. Extra stands, microphones and cables will be required for additional performers and instruments that will be amplified through the system. Turn the main volume up on the mixer and monitor amplifier, and perform a sound check. Specific instructions as to the proper use and function of mixer controls, including monitors, will be found in the owner's manual or on the manufacturer's web site.
Tip Always use the correct gauge speaker cable for the run length, and amplifier to speaker ohm load for efficient sound. Follow all recommendations and specifications for sound system components, which may be found in the owner's manual or manufacturer's web site. Perform sound checks at lower than concert volumes to prevent ear fatigue. Fatigued ears are not able to discern subtle differences in tone. You could imagine all those inputs coming from the stage to the stage input box. We usually connect a mixer to the stage input box which waits for all the sounds from the sources in the stage. The snake that goes from the mixer to the input box can send signal in both ways.
When the signal is send back to the stage from the mixer then the musicians can hear themselves. Musicians could have hard time hearing themselves, as all the main speakers are aimed out to the audience and if no speaker is aimed at the performing band then the only thing that they hear is the reflection of the sound which reaches half a second later to the performing band, which is not really good for keeping time. The way to fix is to send some of the mix back to the stage using on stage monitors or in-ear monitors where in a different mix of sound is send back to the performing musicians and the vocalists using he monitor sense feature in the mixer.
The musicians and vocalists on stage may need completely different mixers may be the vocalists wants little drums for timing lot of piano to help with pitch and a little background of vocals.