Stereo or radio speakers often burn off or broken voice in the system, the average person intuition people will think that is too loud horn meeting can not stand, and thus of spoiling the horn, actually otherwise, there are many kinds of circumstances are likely, respectively, for example, the following situation and reason, believe that we can help you maintain the horn longevity tens of years. We often use the microphone will because the microphone on speaker speech or singing too close to or to the speaker, the volume of generating high frequency positive feedback howling, poke your horn high monomer may be ineffective. This is because of the high once the partials device after most of the signal from the high, this kind of high-energy signal through full circle of very fine high monomer reduced the horn, so often when you use a microphone, must remember the volume by great slowly add, don't sigh up, lest the horn sounds like a cow only the low frequency. 1, too loud while meeting to shatter the horn, another case is expanding machine power insufficient hard up, the output is not normal cut signal, this kind of situation will damage to the speakers. Suggestions be fond of the expansion of large volume of users to choose and buy high power machine, after 30 w small power level is likely to burn low impedance of loudspeakers. 2, expanding machine if there is a dc output, it will burn the subwoofer speakers, even a small number of speakers will be burned. Reason is the bass (or other way) without horn partials path isolation dc capacitor, a dc output as the direct current into the horn, coil partials device connected to the sunburned. Thus expanding unit of choose and buy must pay attention to, to use electric meter measuring levels before and after the first whether the output terminal of the dc output, if there is a dc output level before it is also possible via amplifier output level after the dc into the horn. 3, if you must know is pretended to hand it in the high frequency oscillation, if you now also in his outfit, that should notice more high frequency oscillation, had better use oscilloscope to check the levels before and after the oscillation or dc output, one thousand you haven't found have this situation, it may be to burn your senior speakers enough let you buy several 20 MHZ oscilloscope. Level of output transformer vacuum tube after (or broadcast) does not have a dc output (if there is a scary), but the vacuum pipe and pop up, it is important to pay special attention to the vacuum pipe bender are more likely to have high frequency oscillation or interference with, this is the speaker most often causes, to provide you for daily maintenance of reference. Heavy equipment collocation, Yin and Yang to reconcile I always emphasize, the importance of the collocation of equipment is far better than the single equipment itself is good or bad. Cheap equipment if get proper collocation, its performance will be better than bad with the principle of the high price of equipment and equipment collocation is a balance, like bluff, find the balance point in the middle. Based on this, if we are looking for a feminine personality masculine equipment to match, it sounds very agreeable personality. If it sound too bright equipment we find warm to match; Speed is too slow for it we deserve to go up KuaiZhe. In brief, Yin and Yang to reconcile, rigid-flexible economic, principle of the balance is loud. Clean power, quiet transparent layers in urban apartments in the jungle, our home is full of all kinds of electronic jamming pollution. No matter came from the power cord (motor rotation, fluorescent flashing), coming in the air (radio frequency interference and electromagnetic interference) all let we can't escape. In order to reduce the interference, we try to be the refrigerator, air conditioner, dehumidifier, washing machines have a motor of the electric circuits of the don't with the audio circuit. If you can stay, dedicated power supply is even better. Indoor if you don't have as far as possible need not, fluorescent lamp dimmers also can produce noise. In addition, there are selling some resistance to electromagnetic and radio frequency interference of props, there are all kinds of power supply filter can be chosen, processors, etc. How to distinguish their power to get clean? Is simple, the power is clean, sounds clear, quiet, more transparent, and the administrative levels will be better. But one thing to pay special attention to, a lot of people before processing sound more and more thin, in the end only clear and not enough up alto, thin tenor and rich bass, this is not correct. The correct sound is high water sweet, alto plump plump, low volume foot and elastic. Joint frequently wipe, thread to lock The so-called joint is signal input and output connectors. These connectors in use for a long time after the hard to avoid is eroded by air, and a layer of oxide on the surface. Joint male plug and female plant has a layer of oxide, you spend a lot of money to buy the signal line and use? Want to use something to clean the joint? There are many kinds of small to have to clear, ask you to music stores. If joint oxidation badly, you can also go to the vehicle material to buy things like pure aluminum 99, these grinding cleaner is very severe, the joint surface grinding off a thin layer, ensure clean and walk. But it is important to pay special attention to, don't take the cleaner to clean panel or gilded knob, that would make them not gold-plated burnish. When you clean the joint surface, can go to buy a dry paper contains mild oily. Grazed the joint surface, with the dry paper will allow them to hold about one month not the effect of oxidation. Again, thread locking is what mean? Thrum refers to the horn thread, unless the horn thread lock, it produces may be adverse influence on low frequency impedance change. In my experience, had better not use horn line terminal, will be bare wire lock on the side directly, it will get the best contact. If must use terminals, as far as possible choose thin and soft, pure copper Y type in this terminal can be lock. The more thick, the hard terminal contact effect is poorer. If can output input terminals clean, horn line lock, like didn't hinder the principal meridians of the human body, the sound will be better to listen to. Buy leather sofa, sit well and sound good Whether you are buying single seat or double, three or even a complete set of sofa, I suggest you buy leather sofa. Why is that? Perhaps everyone sitting for good or not have a different view. But the leather sofa and cloth sofa, wooden one, indeed will make the voice is nice, especially at low frequency. Why is that? I did not use the scientific method to test, but I think leather sofa is a very good voice damping body, it can moderate absorption (size, weight and degree of hardness and softness) and reflection (leather surface acoustic wave, make better listen to the sound. In addition, if the right maintenance in leather sofa, with five years ten years no problem. Moreover, the Italian imports of leather sofa is not too expensive, and there are many imitations in Taiwan. Nail plate, ShangCai hurt again In a common family, in order to beautify the ceiling, or a false false wall beam, how many nail splint or carpentry, and even whole metope to beautiful, also is first nail splint paper again. Unfortunately, splint in intermediate frequency and low frequency has quite strong absorption. Therefore, nail splint, more will get thin in the intermediate frequency and low frequency. As everybody knows, a thin intermediate frequency, as one of the liver is bad, that is a very serious problem. In terms of acoustics, plywood ShangCai certainly hurt again. If your ceiling must be beautification, so, I suggest you do small arc plate to beautify. Or, do pieces of independent long arc. Even, on the ceiling installation quadratic remainder diffuser are available. The measures for voice is all positive. Please note that if your space is very big, can selectively listening to the ceiling above measures. If within the five ping, do a couple of the arc have be full of the ceiling. One might suspect, arc plate are made of sheet? Yes it is a thin plate bending, but its strength is very high. And it's internal no airtight cavity, so sound-absorbing properties of far less than the diffusion characteristics. Furniture, normal diffusion absorption to nature When ordinary people decorate a room acoustics, the first thought is to clean and tidy simple. Indoor not in assorted furniture cabinets, etc. Little imagine, as a result, due to fewer things indoor sound absorption, makes too much echo, reverberation is too long, a standing wave generated on the low frequency. Such a space, beautiful appearance is beautiful, but noisy sound must be empty, not durable. My suggestion is a stereo space it is better to be and the general environment that occupy the home, there are tables and chairs, cabinets, etc. These furniture will naturally of sound absorption, reflection, the role of diffusion. With luck with no voice as well. Bad luck, we'll do some for good sound device and adjustment.