Changzhou Su Yang Electronics Co., Ltd.
Address: Changzhou City, the western suburbs of Benniu Town Road No. 30 Taurus
Phone: 133824846598
Fax: 0519-83211109
Official website: www.suyangdz.cn
How many watts is the maximum power that a speaker system is able to withstand, from a technical level, depending on the drive and the heating and mechanical limits of the frequency divider element, from the practical side, depending on the program material: the ratio of the signal's peak / average, or the instantaneous component and the spectrum. The substance of the
problem is not the power capacity of the speaker system, but rather how the speaker system is equipped with the most suitable power amplifier.
1 rule of thumb
use RMS (RMS) rated power can be used to find the best answer to the rule of thumb. Power amplifiers using two times the rated power of the loudspeaker system RMS. If the power amplifier is not found to be equal to two times RMS, the power range of the speaker system can be determined by multiplying the two times RMS power value by 0.8 and 1.25.
for example: a speaker of the RMS rated power is 250W, it is two times the 500W. Therefore, the sound box can accept the power range is 400W (0.8 x 500) -625W (1.25 x 500). Exceed the maximum power is too large, lower than the minimum value may be due to the failure of the amplifier caused damage. Note that the output impedance of the selected power amplifier must be consistent with the impedance of the speaker on the speaker (16, 8, 4, or 2). RMS
rated power shows that the thermal power limit of the speaker system, it is a good product comparison. Two times RMS ratings are the real power of most of the actual audio signal. The power is higher than the RMS rated power 3dB. Power amplifier's RMS rated power is based on the sine wave measurement, the sine wave peak power is higher than the RMS 3dB. Therefore, to use a power amplifier with two times the RMS rated power of the loudspeaker system, the power of the short term peak power 6dB of the loudspeaker system should be provided.
why good speaker system can easily do this RMS rated power used in the professional speaker system is often the use of pink noise as a test signal. This signal has a peak RMS level, and its peak is higher than the RMS level of 6dB. Therefore, the use of pink noise test speaker system on the need for power amplifier to generate a higher than the input signal RMS level of 6dB peak power, and there is no clipping. The rule of thumb is to give the power to power.
2 actual audio signal
actual audio signal is usually at least a peak value higher than RMS10dB. Therefore, the appropriate power amplifier power should be in the signal just before cutting, the RMS value of the typical audio signal is at least less than the speaker system RMS rated power 3dB, which is relatively safe.
3 is still likely to damage the speaker system
why in the empirical rule of power range, the speaker system is also entirely possible to be damaged, because the power capacity depends on the actual application of the type of input signal and the user (not the manufacturer) of the input signal control system. For example, the RMS value and the peak level may be equal to the compression of the audio signal and the signal level of the synthesizer, fine processing of the electric guitar and other musical instruments. This means that any RMS rated power of the loudspeaker system is likely to damage the speaker.
plus, no matter how much power the power amplifier, the power amplifier is a problem for the speaker system.
there is no perfect answer to the question of power capacity. For most of the live audio signals, the experience rule applied to the speaker system plays a role in the selection of the optimal power size of the amplifier, the speaker system can work in the specified maximum rated power state.
4 on the distortion of the
almost no speaker system works at maximum power without distortion. Therefore, manufacturers have no way to make the product at the maximum rated power is still not distorted. If when a speaker system in close to the maximum rated power of the voice is terrible, you will found that the limiting factor is that you can tolerate the maximum distortion, but not the maximum rated power value