A sound reinforcement system, more commonly referred to as a PA system or simply PA (short for "public address"), serves to amplify speech or music for an audience. Having made the initial decision to purchase a PA system, however, users are immediately confronted by a vast range of options. Thomann's webshop includes a selection of active and passive PA systems as well as individual components in addition to various sub-categories such as column PA systems and battery-powered PA speakers. PA systems are also available at a wide range of different price points, with Thomann's selection of active PA speakers alone covering everything from the affordable Fun Generation BP 108 A for under 100 euros through to high-end speakers costing around 10,000 euros.
This makes it all the more important for users to consider right from the outset what they require from their PA system and how exactly they are going to use it. Thomann's online guide to PA systems will also provide a helping hand here and contains detailed information about everything that needs to be considered when purchasing a PA system. What is more, the team from Thomann's PA Systems department will be happy to help you with any questions you might have. You can contact them by telephone on +49 (0)9546-9223-35 or by e-mail at pa@thomann.de. PA systems are of course also covered by Thomann's 30-Day Money-Back Guarantee in addition to our 3-year warranty.
The best PA system is always the one that is fully suited to the relevant requirements, which means that it is important to know the size of the location and the precise application for the PA system right from the start - a small bar in which only singer-songwriters will be performing, for example, will need a compact PA system that can be set up quickly, while large-sized events like the Hurricane Festival will need a different type of solution altogether. Users who have made the firm decision to purchase a PA system thus need to clarify the following points first of all: Is the PA going to be used for live music, does it need to be suitable for mobile use, and - a particularly important point - what room size and how many people does it need to cover?
If the PA system is only intended for a home rehearsal space, a compact solution such as the box PA110 A Bundle, which are characterised by their ease of operation. Owners of clubs and live music venues who are planning to purchase a PA system need to make sure that the model they select is powerful enough for their needs, since smaller and lower-powered systems are seldom sufficient for larger locations. In such cases, an active system like the JBL EON 715 Power Bundle or the box pro Achat series will provide an ideal option for medium-sized venues (for approximately 100 to 300 people).
Complete line array systems like the DAS Audio Vantec 6x20A/2x118A or the box pro A8 LA Line Array Bundle will in turn provide professional users and rental companies who need to cater for open air and other large events with an ideal solution.
Restauranteurs and entertainment venue owners may want to offer their guests entertainment in the form of poetry slams, karaoke evenings, and similar events which require a good level of intelligibility and a pleasant sound for background music. For such cases, models like the box pro Lounge Bundle M black and the passive JBL Control 1 Amp Set are the way to go.
The primary purpose of a PA system is to amplify an audio signal and to convert it into an audible sound. How this happens, in simple terms, is that an audio signal is sent to a (power) amplifier that amplifies the signal and sends it on to a speaker. In larger PA systems, different sections of the audio signal's frequency range are sent to different speakers: For example, a subwoofer is exclusively responsible for the low frequencies. Satellite speakers or full-range speakers in turn cover the mid and treble frequencies in a PA setup. The frequencies are separated either by a frequency crossover or in the EQ section of the mixing desk. Compared to hi-fi systems, PA systems can be operated at significantly higher volume levels.
PA systems can be divided into two basic categories: There are active PA systems, in which the power amplifier and speaker(s) are housed in the same cabinet, and there are passive PA systems, in which the power amplifiers and speakers are implemented as separate, individual components. In addition, there are also specialised PA system types that are optimised for specific areas of application.
The most well-known brands in the PA systems sector include speaker manufacturers RCF, HK Audio, db Technologies, and the box, as well as power amp manufacturers like Crown, Dynacord, and the t.amp.
The major advantage of active PA systems is that the power amplifiers are always integrated into the speaker cabinets themselves, which makes these systems easy even for inexperienced users to operate. The power amps and loudspeakers are also optimally matched to each other. These systems frequently come with additional features such as DSP processing (e.g. preconfigured equaliser presets), which allow the active speakers to be perfectly adjusted to match the desired application. As with their passive counterparts, the range of components available for active PA systems also includes full-range speakers and subwoofers. If possible, it is advisable to use speakers that are all from the same manufacturer, rather than combining different brands. Smart solutions here include the Altea 415A7718A Power Bundle from DAS Audio and the active Achat Band Set from the box pro.
Passive PA systems are designed along much the same lines as conventional hi-fi systems and assembled from separate components that include power amplifiers and speakers. The advantage of passive systems is that they can be individually configured. A wide range of passive full-range speakers, such as the EV ELX 112 and the box Pyrit, can be combined with power amplifiers like the Crown XLS 1002 and the t.amp e 400 as well as subwoofers like the box pro Achat 108 Sub. However, users should take care to ensure that the individual components are compatible with one another, as the power amplifier or speakers may sustain damage if improperly matched components are operated together. Users should either have a certain basic knowledge of PA systems here, or they can of course call on the experts at Thomann for specialist assistance and advice. Because they can be easily expanded, passive PA sytems are particularly suitable for medium-to-large sized applications and events, i.e. for approximately 300 to 1,000 people. Those who are planning even larger events normally opt for so-called line array systems, but setting up and operating systems of this kind requires an extensive technical knowledge, or at least the services of a trained PA engineer.
So-called column PA systems are another popular solution. These extremely compact systems are generally active and comprise multiple small-sized speakers. Their small design envelope makes these systems ideal for mobile use and for applications where space is restricted. What is more, setting up and dismantling these systems is child's play, and can easily be handled by one person on their own. Well-known models in this category include the Bose L1 Pro16 and the box pro TL series.
Battery-powered PA speakers come into their own in applications where the users needs or wants to be independent of mains power. These systems, which are always active, often include additional features such as an integrated mixer or a Bluetooth interface, and they are ideal for use on the go and for users like mobile DJs and street musicians. The Proel V12 free, for example, includes a handy trolley function, while the box MBA 120W MKII HTPT even comes complete with a matching wireless microphone.