Sound reinforcement is an important component at any given event. While it might just be easy to call the PA systems providers such as Drama Sounds and Events, have them come over and do their thing, it might also be important to know what exactly happens behind the scenes. This will put you a good position to rightly critique their setup in the event of poor sound quality. Here are some of the important components of a good public address system.
Modern digital mixers pack in a load of features designed to enhance sound quality. Effects/dynamics processors and instant settings recall features of these mixers make for crisp clean sound. Its also easy to add more components to the mixer, making it effective for any level of performance.
There is no better way to enhance stage vocals than using a quality dynamic or condenser mic. Condensor mics are known for their high quality studio recording, and since many people nowadays prefer studio quality sounds during their live events, a nice road-worthy, wireless condenser mic might be ideal for spoken word situations.
PA speakers can either be passive (unpowered) or active (powered). Active speakers have inbuilt amplifiers while passive speakers come with no inbuilt amplification. Its worth noting that passive speakers have a higher power capacity, and are immensely convenient if you already own power amplifiers. Its vital to know whether your service providers will be coming along with bi-amped or tri-amped speakers, and whether or not a subwoofer will be added to the system.
Stage monitoring systems are on the rise. A good system helps to maintain checks and balances during the entire performance. Many DJ units choose to work with either in-ear monitoring systems (wired or wireless), traditional unpowered stage wedges, small stage fills or powered solutions.
Once again this will depend on the type of speakers available. However, if a power amp has to be matched to a PA speaker, the guiding rule is usually to pick an amp that can deliver power that equals to twice the continuous IEC power rating of the speakers. This is a sure way to deliver clean, undistorted power.
Proper cable management makes the difference between your audience getting to hear your music or not. A good PA system should make use of solid cables, long enough to sustain all the necessary connections.