one look
Observe the appearance of the whole box carefully to obtain information such as manufacturing process, box material, box sealing, speaker caliber and quality, and even the crossover can be seen from the inverted hole. First look at the outer layer of the speaker, whether there are obvious blisters, scratches, edge curling, etc .; whether the joints are neat; whether some plastic products of the cabinet are rough, such as whether the wall of the inverter tube is thick and the surface is smooth . From these subtleties, the quality of the whole box can often be seen. Then carefully distinguish the cabinet material from the joint of the speaker panel. In general, it is easier to distinguish whether it is wood. Currently, most of the commercially available multimedia speakers are wood, but there are advantages and disadvantages of wood. Although some low-end speakers are wood, but Often low-density particle board is used, and the board is thin. If this cannot be seen through the seam, you can also tap on the wall of the cavity of the box with your fingers. If the board is thicker and the density is higher, the sound should be low and no obvious sense of cavity . In addition, pay attention to the front panel when looking at the material of the cabinet. Often some speakers use plastic panels in order to pursue the appearance of the appearance and reduce the difficulty of production (because the plastic products have strong plasticity, it is easy to install speakers and control knobs), but this kind of plastic The panel made is nothing but beautiful: the resonance of the panel body is serious. When the volume is turned up, the gap of each knob hole and even the small hole of the indicator light can be said that there is no sound quality at all. "From this point of view, I urge you not to "get the box out of appearance" when buying speakers. Finally, do n’t forget that the panel grille of most two-channel speakers can be removed. (Be careful, it's better to get permission from the merchant.) Remove the grille to observe the speaker. Although the magnet of the speaker can no longer be seen in the finished box, the grade of the woofer can be estimated from the paper cone and folding ring material. If the paper cone and the folding ring are pressed together with pulp material, it is an ordinary low-end speaker. The high-end speaker folding ring is usually used in rubber folding ring, cloth folding ring or foam plastic folding ring. Although these folding rings may be less sensitive than the paper cone folding ring, they are better than the paper cone in the resonance frequency, sound quality, frequency response and other indicators. The folding ring is much better. As for the material of the cone, each has its own merits.
Two
Weighing the weight, although this method is "soil" a little, but it is very practical. Although the quality of the speaker is not necessarily proportional to the weight, at least the weight can explain the "weight" of the materials used by the merchants to produce the speaker (I think, even the "JS" that is raped will not put a brick in the box! ). The power of the speaker is greatly limited by the magnet, and the size of the magnet is of course directly reflected in the weight; the better the material (thickness, density) of the cabinet, the greater the weight is; the power output of the entire system is then implemented in the power amplifier circuit In the final analysis, it comes from the power transformer. If the capacity of the power transformer is not enough, there will be obvious dynamic distortion during playback (especially at high volume), giving people the feeling of "lack of stamina", and the capacity of the transformer is basically proportional to the weight. . In summary, the quality and weight of the speaker are basically the same. When buying, choose "reasonable" reasonably!
3. Listen
Buying a speaker is ultimately used to listen to the sound, so the audition is indispensable. Most PC enthusiasts are not audiophiles and do not have "gold ears"
Sweep, welcome attention
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