{"id":57871,"date":"2023-05-16T14:27:56","date_gmt":"2023-05-16T12:27:56","guid":{"rendered":"https:\/\/www.connessioni.biz\/we-simplify-installations-with-distributed-audio-systems\/"},"modified":"2023-05-16T14:41:40","modified_gmt":"2023-05-16T12:41:40","slug":"we-simplify-installations-with-distributed-audio-systems","status":"publish","type":"post","link":"https:\/\/www.connessioni.biz\/en\/we-simplify-installations-with-distributed-audio-systems\/","title":{"rendered":"We simplify installations with distributed audio systems"},"content":{"rendered":"

Audio systems for distributed music, or distributed audio, arise from multiple needs whose common denominator is to broadcast voice messages, or music, in environments other than the one where the speaker or sound source is located. Ideal for broadcasting speech in places such as train stations, airports, sports centers, offices, parking lots, and art galleries, they are equally suitable for playing background music, with possible inclusion of alerts or hands-free calls, in places such as department stores, supermarkets, theme parks, beach or spa establishments, shopping malls, beauty salons, etc. These are therefore specific applications quite different from those of a PA system for show biz, theaters and auditoriums.<\/p>\n

We will deal specifically with 70\/100 V systems-amplifiers<\/strong> and loudspeakers-highlighting the differences from traditional systems, also known as “low impedance” systems<\/strong>. Learn about Audio Effetti’s proposals for room sounding that require distributed audio systems.<\/p>\n

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When speakers are never enough!<\/h3>\n

In installations for diffuse music, one thing is certain: we need many loudspeakers (in-wall, in-wall, or in-ceiling) or speakers, since the rooms to be sounded are either vast or consist of many well-defined areas. Think, in the first case, of an airport terminal and in the second case of a museum.<\/p>\n

We know very well, however, that we cannot connect too large a number of speakers to a conventional type of amplifier because of load problems. Two identical 8-ohm speakers in parallel on one output are in fact seen by the amplifier as a load (impedance) of 4 ohms, and four speakers as a load of 2 ohms, and so on. As we continue to add speakers, the impedance goes lower and lower, reaching values that can approach short circuit, with the powers that correspondingly continue to increase. Under these conditions-it can be several thousand watts-the amplifier cannot continue and deliver power and reaches a point where protections kick in. That being said, if you anticipate having to connect many speakers\/speakers to your amplifier, you are left with only three options:<\/p>\n

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