It can be found from the internal structure of the power amplifier with super large output power, in order to take care of the size and cost of the cabinet, 100% of the power transformer and output transformer of this type of machine use a small volume toroidal transformer. Toroidal transformers are more commonly used in the field of home audio and professional audio due to their high efficiency and small size. It is a bit inappropriate to copy it to the power amplifier in the public address system.
Therefore, we believe that in public address systems, it is not appropriate to use power amplifiers with large output power. There are two reasons: VY! V # s.?
N-Bv1]
First, the toroidal transformer is not suitable for long-term large-load operation. The public address system is different from home audio and professional audio. Many occasions require continuous operation for more than 10 hours, or even 24 hours of uninterrupted operation. For this more "bad" environment, the toroidal transformer will be overwhelmed in the long run.
The second is to consider the heat dissipation of the power amplifier and the stability of the system. At the same time, in order to facilitate daily maintenance and improve the interchangeability of the equipment, the amplifier with large output power should not be used. Imagine that a system is equipped with an amplifier with a large output power, and the machine is faulty, which is a hundred. If the system is equipped with 2-3 low-power amplifiers, one is broken, and the entire system will not be paralyzed. Furthermore, the greater the power and the longer the working time, the higher the probability of failure.
Although the system is equipped with a high-power amplifier, which can save some cable costs, we feel that we should consider more from the perspective of system stability. The source of the article: Hengge Electronics
Therefore, we believe that in public address systems, it is not appropriate to use power amplifiers with large output power. There are two reasons: VY! V # s.?
N-Bv1]
First, the toroidal transformer is not suitable for long-term large-load operation. The public address system is different from home audio and professional audio. Many occasions require continuous operation for more than 10 hours, or even 24 hours of uninterrupted operation. For this more "bad" environment, the toroidal transformer will be overwhelmed in the long run.
The second is to consider the heat dissipation of the power amplifier and the stability of the system. At the same time, in order to facilitate daily maintenance and improve the interchangeability of the equipment, the amplifier with large output power should not be used. Imagine that a system is equipped with an amplifier with a large output power, and the machine is faulty, which is a hundred. If the system is equipped with 2-3 low-power amplifiers, one is broken, and the entire system will not be paralyzed. Furthermore, the greater the power and the longer the working time, the higher the probability of failure.
Although the system is equipped with a high-power amplifier, which can save some cable costs, we feel that we should consider more from the perspective of system stability. The source of the article: Hengge Electronics
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