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Is not the greater the power, the home theater speaker ringing?

When it comes to loudness about the loudspeaker, many people seem to be confused about the concept. And related to the volume, many musicians will only consider the speaker power and rated wattage, and in general, the more the number of watts does not mean that the "loudness" the greater. But it is undeniable that w is still an important consideration, the beats by dr dre speaker power is also an important factor affecting the speaker loudness.

Decibels and volume levels

Decibel ("dB") is the counting unit for the ratio between two numbers. Well, I understand that many people are not interested in this, so I will be simple things, as far as possible does not involve the "mathematics" title. With respect to the logarithmic scale, you can not just understand it in a conventional way - for example, if the number doubled, it will increase, but it does not mean "double". For example, 100dB is 50dB twice, but it does not mean that its "loudness" is 50dB "twice". When it comes to "loudness", it involves the sound pressure level (also known as SPL), about 10dB level of growth will make the sense of loudness "doubled". In other words, if a speaker capable of generating a 90dB SPL and a speaker capable of producing 100dB, most listeners think that the second speaker has about twice the "loudness" of the first speaker.

Wattage, power and SPL

So how much of the wattage will be double loudness? Let us imagine that if there are two speakers, one is 10 watts, the second is 20 watts. 20 watts of power speakers wattage is another speaker twice, but after conversion, double wattage will only increase 3dB SPL. Keep in mind that if you want to double the speaker's loudness, you need to add 10dB for the speakers, while a 20-watt speaker is twice as large as a 10-watt speaker on a wattage, but not twice Loudness. In high-power equipment is also true, 100-watt speakers will not produce 50-watt speakers double "loudness." Assuming the same speaker, it will only increase the loudness of 3dB, although the volume changes will be very obvious, but will not increase the loudness.

Speaker sensitivity level

The loudspeakers in the speakers also have specifications for sensitivity and effectiveness - they convert the incoming electrical energy into acoustic energy. Dynamic moving coil loudspeakers (which you can find in most guitars and bass speakers) are beats solo very inefficient and will convert most of the input power into heat, not the sound. Normally, the sensitivity of the loudspeaker is measured in the anechoic chamber (non-reflective, soundproofed room) and is described by a similar unit / format: 90dB @ 1W / 1m

Translated, it expressed the meaning of "90 dB (SPL) with 1 watt of power, at a distance of one meter from the speaker sound pressure level is 90 dB." Efficient speaker sensitivity will be higher, otherwise, low The effect of the speaker will have a smaller sensitivity. Efficient speakers will make your speakers more loud.

Therefore, we assume that there is a speaker with a sensitivity of 90dB @ 1W / 1m and a power of up to 100W. If we adjust the power of the loudspeaker to 1 watt, it will produce 90 dB at a distance of 1 meter. If we adjust the power to 2 watts, then the SPL measurement will become 93dB. If we increase the speaker power to 10 watts, then the SPL measurement will increase to 100dB. At this time, compared to the previous 1 watt power will produce the effect of loudness doubled. So, in fact, they need more than 10 times the power will let us feel the loudness of the doubled. Since the maximum power we can imagine is 100 watts, we can double the volume again, and theoretically, more than 100 watts of power will produce 110dB SPL. 1 watt = 90dB. 100 watts or more than 100 watts of power = 110dB. This is a huge power growth, but you can only feel four times the volume level of growth.

As you can see, you want to get a "doubled" volume effect, you need to increase the power and speaker wattage. Let's introduce the sensitivity / efficiency of the loudspeaker to this formula. If we replace the 90dB @ 1W / 1m loudspeaker with 100dB @ 1W / 1m, the digital change is very obvious. We know that the input power of 1 watt will provide us with 100 dB SPL. Remember that the first speaker requires 10 watts of power to achieve the same volume! So installing a highly efficient speaker will give us a bigger volume. Likewise, it also applies to the maximum power handling capability of all speakers. Assuming 100dB @ 1W / 1m speakers can handle up to 100 watts, then it can provide up to 120dB SPL; and 90dB @ 1W / 1m 100W speaker doubling the maximum level of only 110dB SPL.

Speaker power + speaker efficiency and power handling capacity = maximum volume

So keep in mind that increasing the speaker's power will make it more loud, increasing the speaker's sensitivity will give the speaker a higher power in the available power range. So, it also means that any speaker "loudness" can not only rely on wattage to judge. You have Beats By Dre On Sale" href="/">Beats By Dre On Sale to know the speaker power processing capacity and sensitivity, etc., these are the speakers to enhance the loudness of the important factors. If your 15-watt speakers are equipped with a relatively inefficient speaker, but it's loud enough to meet your requirements, then you do not beats by dr dre have to buy a high-wattage speaker - you only need to replace an efficient speaker Both to meet your needs on the volume, no need to replace the entire speaker. Similarly, you may not need a 100-watt speaker; if the 50-watt speakers in the 95dB @ 1W / 1m speakers replaced by 101dB @ 1W / 1m, they are at the volume level there is a very significant change, you need To accept .... In fact, when the use of low-efficiency speakers, 100 watts or even 50 watts too loud.

Of course, if you really want the speakers to become loud, then you need to have a high power, high efficiency speaker and power handling capacity of the speaker.