Technical indicators

The sound reinforcement characteristic index of the hall is carried out according to the national first-level characteristic index requirement. The details are as follows:

First-level feature index requirements:

Maximum sound pressure level: 110dB or more;

Transmission frequency characteristics: With an average sound pressure level of 100~6300Hz as 0dB, this range is allowed +/- 4dB, 50Hz-10000Hz allow许+4~-8dB;

Sound transmission gain: -8dB, 125Hz～4000Hz; p>

Sound field unevenness: less than or equal to 8dB, 1000~4000Hz;

Total noise level: 30dB (A) or less.

Power requirements

In order to ensure the high-quality operation of the sound system, the following requirements are put forward for the power supply of the sound reinforcement system:

⑴. The power supply of the sound reinforcement system should be separated from the power supply of the lighting, and the power supply should be handled by the stabilized equipment .

⑵. The transformer group of the power supply of the sound reinforcement system should be connected to the high-current power supply such as lighting and air-conditioning. The transformer group is separated.

3. The power supply capacity of the sound reinforcement system is AC 220V/10 kVA. If possible, two channels are best Power supply, automatic switching between main and standby.

⑷. The power line and the sound line should be avoided as far as possible. If it is impossible to overcome, the interval should not be allowed Less than 50cm.

In summary, our company is designing and selecting products for your stage equipment project , Will always use rigorous and professional means to recognize thatreally responsible The unit designed a scientific, reasonable, economical and practical plan. At the same time, I also hope that you can give us valuable comments and suggestions.