Again, in this set-up you can substitute the sound sources for other things; the microphone could be wireless, the iPod could be an iPad and of course it could also be a spare CD player or whatever… but the idea is the same. The point is that the PA mixer is the hub to joins all the connections from sound sources. Now some DJ controllers do have microphone inputs, but most DJs prefer this kind of set-up as the talkover function on DJ controllers the thing that ducks the music volume when the mic is in use is in most cases not as good if it exists at all in a DJ controller, and a PA mixer will usually give you a greater level of control.
However, there are times when you may be forced to use the microphone input on your DJ controller, which is when you might encounter…. I know some mobile DJs who use this set-up instead. The better your DJ controller, the more likely such a set-up is to deliver good results for you. So these are the very basic set-ups. I hope you can see that it is very simple if you think in these building blocks, there is no magic or voodoo about it. Nothing to be afraid of.
Where it all gets a bit more technical is in choosing a PA system, as there are lots of factors involved in choosing correctly.
So in the next part we answer some common PA questions to help get you set.. Do you struggle understanding how all the parts fit together in PA system? Are you considering buying one for yourself? Let us know your thoughts in the comments.
Click here. By , multiple units were installed throughout the Comiskey Park baseball stadium in Chicago, both to make announcements and to provide musical interludes. Charles A. Comiskey was quoted as saying: "The day of the megaphone man has passed. Any system of one or more speakers designed to replicate audio or speech to a group of people qualifies as a PA system. The first component that comes to mind when thinking about PA systems is the most important one, the speakers.
PA speakers come in countless different shapes and sizes. Each type of speaker serves a different function within the system, but each depends on the other.
In basic PA systems, the main speakers are either placed on speaker stands or mounted on top of the subwoofers. Main speakers in your basic PA system are normally sized between 10"" with a smaller tweeter speaker above the woofer. Subwoofers are larger than the main speakers and produce lower frequencies than the mains. Subwoofers are typically 15"" speakers, although dual 12" subs have become more common.
To separate the sound of the subwoofers and mains, a crossover unit will almost always be employed. The crossover is usually rack-mounted and separates the signal going through it by frequency, sending lower frequencies to the subwoofers and higher ones to the mains.
An important part of tuning a PA system is selecting the correct crossover frequency for the room in which the PA is situated. Stage Monitors are usually positioned near the performer or speaker to help them hear themselves. They are on a separate mix than the mains and subs, also known as the front-of-house speakers. Many main speakers are purpose-designed to also act as stage monitors if so required. An input device is the interface between a sound source and the sound system. In most cases, it will consist of either a microphone or a direct input DI box.
These devices convert the sound or the electrical signal from an instrument or voice into an electrical signal that is compatible with the components of a sound system. The characteristics and features of these devices vary widely between different manufacturers and models. The cables used to connect components of a sound system have three wires conductors , similar to the three prong plug used to supply power to grounded electrical equipment.
The mixing console mixer is the heart of the sound system. It is the device that controls how the input signals are routed to various signal processors and output devices loudspeakers connected to the system.
They are available in analog and digital flavours, but they are all designed with the same architecture. Mixers can appear intimidating with their dense array of knobs, buttons, faders, lights and displays. Their operation is, however, very straightforward and logical if you keep the purpose of their various functions in perspective. Beyond these core functions, there are many routing options that can vary substantially between different models of mixers.
That said, the important thing to remember is that the mixing console is used to control — a the tone of each channel and — b the combination of input signals into a number of separate mixes, each with its own output from the mixer. Signal processors are tools that allow you to modify a signal in real-time.
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