What does the power of power 1, sound mean?
The audio products on the market have the rated power, some of the maximum power, and what is the meaning of the maximum music power?
The power of the sound is one of the most important parameters of the sound, indicating the energy that the sound can provide. Power and loudness are not completely equal, but also depends on the efficiency of the sound, the same power, high-efficiency audio sounds louder than low-efficiency audio; large-sized speakers sound better than low-power speakers .
Rated power, maximum power, and maximum music power are all ways to calibrate the audio power. The difference is that the test conditions are different.
The rated power of the sound refers to the acoustic power obtained by inputting a sine wave test signal without distortion (accurately speaking, the distortion is relatively small). The rated power is also called the effective power.
The maximum power is the acoustic power obtained by inputting a sine wave test signal regardless of the magnitude of the distortion. Maximum Music Power (PMPO) refers to the short-term maximum power that the speaker can withstand. The value of the music power tends to exceed several times the rated power.
It can be seen that the rated power is the most meaningful, and the full rated power rating is measured at 1% distortion.
2. How much is the power of the sound generally enough?
To answer this question, first of all, you need to know where the sound is placed. In addition, the listener has no special requirements for the volume. For most people, the sound 10W placed in the room is very loud, and the sound of the living room is turned to 30W, the neighbors are coming to shoot the door, so the rated power is calculated, the room is 20W, the living room is 40- 50W is enough. Of course, if the economy allows, a larger power amplifier is also a good choice. Maybe when you want to vent your vent, it will come in handy.
3. How is the power of the amplifier so low, but it sounds like more than its calibrated power?
Because the amplifier is only rated for power, its value is very low. As for why the same 10W amplifier and stone machine, the amplifier seems to have a larger thrust. This is mainly because: the amplifier has an output transformer. When the amplifier is overloaded with clipping distortion, the output transformer has a certain output through the output transformer. The shaping effect seems to be as serious as the stone machine that is not already distorted. Under normal circumstances, a 10W amplifier is equivalent to a stone machine with a rated power of 15W, or a stone machine with a maximum power of 40W.
4. How is the power of the amplifier and the speaker better matched?
To answer this question, we must first understand whether it is necessary to fully exploit the potential of the speaker. If it is, then the power of the amplifier should be greater than or equal to the power of the speaker, or even 1.5 times the power of the speaker. Of course, if the power of the speaker is very large for the environment, then enough power can be selected to meet the requirements. For example, the maximum power of U07 is 80W, and the power amplifier used in the living room should have a maximum power of 80W at least, but if it is used in a room, if it is not Judy, a 20-30W amplifier is enough, because this You don't need to squeeze out the potential of the speakers.
Inganey A5, A6 speaker, active subwoofer A-BASS with amplifier HD-500S
About the speaker
1. How should the speakers be placed?
From a reduction point of view, there should be an equilateral triangle between the two speakers and the listener, which has the best listening effect and the most realistic sound reproduction. In addition, the speaker should be placed on the speaker stand, so that the sound is affected when the speaker is working. If there is no condition to be placed on the table, it should be placed on the side of the table as much as possible. This can reduce the acoustic resonance generated when the speaker occurs. Harmonic reflection; if used on a desktop, you can raise or tilt the speaker (to let the speakers of the speaker face the listener).
2. When listening to the sound, should the net cover of the speaker be taken off?
The main function of the speaker's mesh cover is dustproof, but there is a layer of barrier for the sound, which will have a slight impact on the sound quality, so you buy a HiFi speaker, and if you want better results, then it is best to take it off. . Of course, this requires your speaker net cover to be taken down. For those speakers that are not easy to remove, the designer has considered the influence of the net cover, so there is no need to take it down.
3. Does the environment have a big impact on the effect of audio playback?
Large, non-general. Almost all HiFi speakers are designed in the anechoic room or reverberation room, and the family environment is very different. This is often the reason why HiFi speakers feel much worse after they get home.
4. How can I get better listening effects in a family environment?
This is a very complicated question, and you can write a book to answer this question. Here are a few basic principles: (1) avoid listening to music in a very empty room or hall, so that the echo will make you intolerable; (2) try to absorb a little more material in the listening environment, the sound-absorbing material mentioned here. Including: sofas, curtains, fabrics, carpets, mattresses, etc., which are relatively soft, so that the reflection will be minimized; (3) the speakers should be placed on the shelf as much as possible, and try not to place some hard objects around the speakers; (4) It is also the most important thing, that is, try a few more speakers to see the effect is better.
About amplifier
1. What are the benefits of independent power amplifiers?
Independent power amplifiers are theoretically different from the power amplifier functions in active speakers, and they all function as power amplifiers. However, the effect is different, which is reflected in the following points: (1) avoiding the disadvantage that the active speakers have a power amplifier while not sounding a bit different on the two sides; (2) avoiding long-term vibration of the active speaker power amplifier parts Disadvantages of easy damage; (3) avoid the shortcomings of the active speaker amplifier when it is easy to be affected by the speaker magnetic field; (4) The metal casing of the independent power amplifier can provide good anti-interference ability (the mobile phone calls, the active speaker is å±The squeaking situation is almost eliminated in the independent power amplifier; (5) the maintenance and upgrade are convenient. (Active speaker amplifiers and speakers are bundled, one is broken and thrown together)
2. What is the emphasis on the connection of the amplifier to the audio?
The connection of the amplifier to the speaker is generally called the speaker cable. This is the connection of excessive current, so the resistance is required to be small, and the capacitance between the wires should be small to ensure the non-destructive passage of the electrical signal (accurately, the loss is passed as little as possible). ), so the core of this line should be as thick as possible, and oxygen-free copper is used to achieve the requirement of low resistivity. As for the line capacitance, it is necessary to look at the designer's design. A good speaker line is worth a thousand dollars. It is spent on thinking and using materials.
In general, the speaker will have a more obvious difference when it comes to a certain grade of the best product line. The improvement of the speaker line change of the low-end is very small.
The standard for selecting the speaker cable is the cost-effective principle. On the basis of applicable, the standard wiring can meet the normal listening needs; on the basis of applicable, the upgraded line with improved sound quality and high cost performance can be selected. Of course, higher requirements can be tried to change the line.
3. How do HiFi amplifiers output two channels? Is there a gap between the comparison with AV amplifier 5.1?
Don't look at HiFi amplifiers with only two channels of output, but the power of music is far stronger than that of AV amplifiers. In fact, HiFi amplifiers and AV amplifiers are power amplifiers with different emphasis. HiFi amplifiers focus on listening to music, and AV amplifiers focus on them. Movies; most of the music is recorded and produced in two channels. If you want to restore it, you can only use two channels. The AV amplifier does not work with 5 channels at any time, only when watching movies. It is possible that 5 channels work at the same time, producing a surround effect, and when the AV amplifier is used to listen to music, there are only two channels of output, the same as the HiFi amplifier, this time is to compare the effect of the main channel. .
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