Microbuzzer.com · Posted on 23-07-2010 by microbuzzer

Speaker power rating

Speaker power rating is the effective power can be continuous and steady work, that is able to withstand the long-term value of power without damage, this is the real meaning of the power of the speaker parameters, rated power unit watt (W) . Generally rated power when the test was rated frequency range to the speaker input a sine wave signal, the signal duration of 1 hour, speaker does not generate heat damage and mechanical damage.

In theory, the speaker of the rated power does not mean necessarily require such a high-power amplifier was pushing well and the speaker driven mainly by the difficulty to determine the sensitivity and impedance; does not mean that can not be assigned output power greater than the speaker Rated power amplifier, as long as the volume increase is not blind, as can high-power amplifier with low power speaker.

However, in choosing speakers , we must pay attention to the power matching with the amplifier is best not to buy products with higher power than the amplifier, because the increase in volume when the amplifier’s output power will easily exceed its rated power resulting in clipping distortion, and in severe burn speaker of the coil leading to the speaker of the damage. So to keep the power amplifier, “margin” is the system with important factors to ensure power amplifier rated at slightly more than the speaker of the rated power is the best option.

speaker Maximum output power

Speaker maximum output power is defined within a certain harmonic distortion index, to the amplifier input signal is large enough, and volume and tone potentiometer to maximum, the speaker amplifier can output a maximum power that maximum output power.

Maximum output power, also called instantaneous power, or peak power. On the amplifier, the maximum output power is defined within a certain harmonic distortion index, to the amplifier input signal is large enough, and volume and tone potentiometer to maximum, the amplifier can output a maximum power. The speaker , the maximum output power is the speaker can in a short time with maximum power.

In general the maximum output power is rated output power of 5 to 8 times, a description of that device is not working long hours at maximum output power state, otherwise damage the equipment. Maximum output power reflected product in an instant overload capacity, and to a certain extent, reflect the power rating. Some vendors in order to attract users, deliberately maximum rated output power output power and confusion, people mistakenly believe that products with high output power.

Power amplifier are all speaker of the power of reference to ensure the correct and does not damage the speakers play the sound speaker. According to the characteristics of music signals, the peak factor of about 10-15dB, the speaker  system Yao quality of re-release of various music programs from the Bao Zheng sound this perspective, the dynamic range amplifier that here will not cause any Xian increase situation in which the amplifier’s maximum output power should be speaker rated power of 5 to 8 times, the actual design of the power ratio of up to at least 1.5 times. On the contrary, if you use a smaller power amplifier, large signal input can cause significant distortion cut top, very easy to damage the speaker . Therefore, when considering the power amplifier should be focused on considering the speaker of power.

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