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What is the speaker's power?

As the name suggests, the speaker's power is "the input speaker does not exceed the marked power will not be damaged, you can afford it." There are several ways of expressing the power of beats solo a speaker, which can easily lead to misunderstandings of the user, resulting in improper use of the speaker. Some of the parameters of the speaker is marked rated power, that is, long-term power, that long-term use in this power state will not be damaged.

Factory test rated power at a constant temperature of 20 , the pink noise signal for 48 hours of continuous work. KTV rooms in the use of the more harsh environment, the music contains many large dynamic peak signal, it is recommended that the input power is lower than 20% of the rated power above the speaker, it will be much safer.

Speakers to withstand peak power is limited, the time is set to 1 second, repeated only 10 times, if more than may be damaged, the peak power of the speaker marked with special caution, it is recommended to use the power does not exceed the peak Power 1 / 4.2 What is the rated output power amplifier? Power amplifier rated output power refers to: "long-term output power without distortion (generally refers to the output distortion does not exceed 1%)", this state amplifier is safe and reliable work. In fact, there are several prerequisites: First, the mains voltage is required for the standard 220V, if the city fluctuations, the power amplifier output will also change; the other is the load (speaker) impedance requirements, such as 2 * 150W amplifier, load case may output power will reach about 230W; the third factory in the power amplifier output power test environment temperature is 20 , KTV rooms in the use if the cooling is not good , Even under rated power conditions, are likely to damage the amplifier; the rated power of the four amplifier refers to the distortion of the output power, not to say that the power amplifier can only output this power, if you let the power distortion also increase the output Large volume knob), the output of the distortion power is very large, far beyond the rated power. For example, a large output voltage of 150W amplifier should be less than 35V (power = voltage 2 / resistance) without distortion. In case of distortion, the output voltage may rise to 40V, and the distortion power will reach 402 / 8 = 200W.

3. In the selection of amplifiers and speakers should be how to match the power? In the choice of amplifier and speakers, we recommend that the power amplifier rated power slightly larger than the speaker's rated power, the general size of 20-30% is appropriate, at least have to be equal, must not allow the power amplifier rated power is less than the speaker rated power to form a "small horse pull cart". If the user pushes the bass tone knob or increases the volume knob, the output of the amplifier will be distorted, that is, the output of the amplifier will be distorted Pedestrians often say "clipping", resulting in DC output (under normal circumstances the power amplifier output waveform sine wave AC, distortion will "clip" to form an approximate DC). beats by dre studio In the case of direct current output amplifier can not control the speaker, will burn no doubt. Amplifier power is greater than the speaker power, to control the amplifier output can not be too large, so you can ensure that the amplifier has enough "power reserve", a good dynamic performance, without damaging the speakers.

4. Why often "tweeter"? The tweeter is the weakest part of the speaker, when there is damage caused by the speaker occurs, often the first to damage the tweeter, of course, improper use of the bass speaker will burn. The factory in the design of the speaker, the general power reserve in the former title retained a certain margin, through our visit to a large number of users and found that the vast majority of "burning horn" is caused by improper use, mainly in the following areas : 1) speakers, amplifier power match properly. Some customers choose 2 * 200W amplifier to match the rated power of 120W CS-450A speaker, and the speaker impedance is, when the amplifier under load without distortion at full power output has reached 250W or so, The actual power assigned to each tweeter is 25W, which exceeds the rated power of the tweeter, causing the tweeter to be damaged. The actual output power amplifier customers can measure their own: amplifier connected to the speaker correctly, open the amplifier volume knob, with a multimeter to measure the amplifier output voltage (hands will swing, to take a larger value), and then use the measured voltage The value of the square divided by the impedance of the speaker that is the power amplifier output power at this time. Interference, but must be used when the mouth is facing the microphone, and to be close to some, usually at a distance of 2 to 100px is appropriate, if too far away from, or not, it will result in "insufficient input", especially the loss of bass Will be great. General entertainment guests may not have these "professional knowledge", I do not know their improper use and complain about singing tired. To solve these problems, we should teach our waiter to help teach guests, but the method must be properly, do not blame the guests, it is better to hang on the wall a correct use of microphone tips map.

2) On and off improper operation. Some karaoke establishments waiter in the open, shutdown operation is the first to open the amplifier (and the volume knob to open very large) and then open the sound source (VOD or DVD), turn off the first turn off the sound source and then off the amplifier, there is the amplifier is turned on The state of the first cut into the microphone line to the amplifier, and then open the microphone switch into the connection of the XLR head, resulting in a very strong impact on the current loudspeaker in the moment issued a strong "double" sound As a result of this moment of impact, it is entirely possible to damage the speaker. The correct method of operation is: turn on the first sound source and then open the power amplifier, turn off the first power off and then off the sound source, the microphone into the amplifier must ensure that the microphone and the connection is connected, and to ensure that the microphone switch is turned off. 3) Connection problem. Connection failure is also the culprit of "burning horn". If the signal line of the power source to the power amplifier is disconnected from the ground (sometimes the grounding connection is not good, it will beats earbuds be interrupted), the power amplifier will cause "high-frequency self-excitation" , Re-test burning amplifier. Sometimes the microphone line contact with the microphone is not good (most of the XLR head loose), or microphone head and amplifier in poor contact, or microphone off the ground wire (single-core broken shield) will cause a strong impact, the speaker appeared strong Card "card burst sound, then the speaker will be damaged momentarily.Many users made their own microphone line error, resulting in the microphone" ground hanging ", it will not only cause a lot of system noise, but also Damage to the speaker, if it is a dual-core shielded cable, the correct way is the red line XLR head "2", the white line XLR head "3", shield line XLR head "1", 6.35 head Is the red line then the core, white line, shielded wire common shell .If it is single-core shielded cable then the core line XLR head "2", shield line then XLR head "1", the XLR head The "3" and "1" connectivity connected.