Sound Amplification System

The competition hall of the comprehensive gymnasium is 500-1000Hz full according to the grade and volume.
Reverberation time index and the ratio of reverberation time of each frequency to 500-1000Hz reverberation time

The stadium is mainly used to host large-scale sports events at home and abroad, and has a variety of commercial development functions. According to the different functional requirements of the venue, it is mainly to meet the sound reinforcement requirements of mass gatherings; the system can also be used as auxiliary facilities for theatrical performances to meet the needs of sound reinforcement.

The sound reinforcement speakers of the venue are arranged reasonably and will not affect other applicable functions of the stadium. Microphone plug-in boxes are set at the podium, competition venue, inspection and recording place, and various entrances to provide sufficient microphone points to meet the needs of various competitions and gatherings. In order to meet the needs of live broadcasting of TV stations and radio stations, audio interfaces conforming to the requirements shall be reserved.

The sound reinforcement room will issue notices to the venue, audience corridor and off-site; in case of emergency, the fire control room can give priority to all areas to issue emergency notices when the sound reinforcement equipment is turned on. The stadium has a large sound reinforcement area, so it is not suitable to adopt the centralized sound reinforcement method. This design uses the distributed microphone layout form.

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Layout of sound reinforcement system in large gymnasium

The main sound reinforcement system of medium-sized stadium is permanently installed in the stadium for sports competition.

Including-the next system: auditorium sound reinforcement system; The sound reinforcement system of the competition venue; Call checking and recording sound reinforcement system; The second call checking and recording mobile sound reinforcement system; Sound reinforcement systems in athletes area, competition management area, VIP area and other places.

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(1) Layout Design of Auditorium Line Array Speaker

  1. Number of speakers: 8 groups of LAX AT210 + ATH18B line array speakers (4 in each group of line array full-frequency speakers AT210 and 1 in each group of line array ultra-low frequency speakers ATH18B);
  2. Installation position: hanging above the auditorium of the gymnasium;
  3. Combination form: divided into east, west, south, north four auditorium area;
  • Three sets of LAX AT210 + ATH18B line array loudspeakers are distributed in the east auditorium area;
  • Three sets of LAX AT210 + ATH18B line array speakers are distributed in the west auditorium area;
  • One group of LAX AT210 + ATH18B line array speakers are distributed in the south auditorium area;
  • One group of LAX AT210 + ATH18B line array speakers are distributed in the north auditorium area;
  1. Coverage features: covering the entire gymnasium auditorium area, using the left and right channel stereo sound reinforcement, so that the gymnasium auditorium staff in watching sports to get a better hearing effect.

(2) Speaker layout design of competition venue

  1. Number of speakers: 4 LAX TH912 built-in two-frequency single 12-inch full-frequency speakers;
  2. Installation position: hanging above the stadium;
  3. Combination form: 1 LAX TH912 full-frequency speaker in each group, a total of 4 groups;
  4. Coverage features: covering the entire stadium infield area, using left and right channel stereo sound reinforcement, so that the stadium infield athletes get more clear and timely game information.

(3) Auxiliary speaker layout design

  1. Number of speakers: 4 LAX TH912 built-in two-frequency single 12-inch full-frequency speakers;
  2. Installation location: hanging above the corner area of the auditorium;
  3. Combination form: 1 LAX TH912 full-frequency speaker in each group, a total of 4 groups;
  4. Coverage features: cover the entire auditorium corner area, so that the stadium auditorium corner area can get better hearing effect when watching sports events.

Layout of the Sound Amplification System of Super Large Gymnasium

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(1) Layout Design of Auditorium Line Array Speaker

  1. Number of speakers: use 20 groups of LAX AT3212-V2 line array full-range speakers (line array full-range speakers AT3212-V2 8 per group);
  2. Installation position: hanging above the auditorium of the gymnasium;
  3. Combination form: it is divided into four auditorium areas: east, west, south and north; 5 groups of LAX AT3212-V2 line array full-frequency speakers are distributed in each auditorium area;
  4. Coverage features: covering the entire gymnasium auditorium area, using the left and right channel stereo sound reinforcement, so that the gymnasium auditorium staff in watching sports to get a better hearing effect.

(2) Speaker layout design of competition venue

  1. Number of speakers: 8 LAX PS48 two-frequency two-drive single 8-inch line array speakers;
  2. Installation position: hanging above the stadium;
  3. Combination form: 1 LAX PS48 speaker in each group, a total of 8 groups;
  4. Coverage features: covering the entire stadium infield area, using left and right channel stereo sound reinforcement, so that the stadium infield athletes get more clear and timely game information.

Keywords: sound expansion system, sound reinforcement equipment

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