Saturday, January 1, 2011

Electronic dividers to pay attention to some problems and troubleshooting

E-modulus prescaler: electronic dividers, the main function of course is to give different speaker assigned different operating frequency, and of course protect speaker function, the following saying of adjustment required electronic dividers to pay attention to some problems and troubleshooting: 1, crossover point: in a 2-frequency of the sound system, normally crossover point in the vicinity of more appropriate 130Hz, but in many cases, adjustments to the crossover point is not actually depends on bass speaker, but settled on the treble or full-frequency sound. Because bass speakers work in 300Hz following can, but some in the treble, and full-frequency sound speaker diameter is too small, the dynamic range is not large enough, you must work in order to ensure the above 200Hz their safety, if in this crossover points in the vicinity, then these 130Hz treble speakers work looks very dangerous, so in effect and safety among them or to find a balance. I think dual 15-inch wide-band master sound box it is best not to go through electronic dividers; single 15-inch flexible main speakers; and single 12 inch below the main speakers the best e-mail divider, at least in the above job security 180Hz. 2. volume control: whatever is enter level or adjust the output level, when you want to have a degree, don't drive too big. If you are an individual dividers on volume knob are open to a large, systems of sound pressure is not enough, it will adjust the electronic divider in front of the device's signal level or adjust the electronic dividers following amplifier's level and the volume switch. 3 × 10 button: there are a number of e-modulus prescaler has one: × 10 buttons, we take care not to press it lightly. For example our crossover point adjustment in 200Hz, press this button to 200 × 10 becomes 2000Hz, so unless it is required, otherwise generally do not press this button. 4, bass mode: some electronic dividers back panel has a bass mode choice, it can take 2-channel stereo signal mixed into 1 channel Mono signal, which can reduce the bass sound interference between the speakers. You can use the following as appropriate. Of course if the bass frequency points higher, then the bass speaker sounds will have a certain direction, at this point or 2-channel stereo signal of State work better. 5. stereo mode and mono mode: currently we are using most electronic dividers are mostly of 2 frequency, taking into account the flexibility and versatility, these electronic dividers of the back panel of the General Council has a stereo and mono mode switch, if you put the switch on the Mono working mode, then at this point the electronic dividers from a dual-channel electronic 2 frequency divider becomes a single-channel 3-n e divider. So unless necessary not to easily convert this work switch, otherwise e divider output signal behind the output frequency of the signal would be quite different! minor worsened the sound, to also be damaged equipment! 6, System bass signal output and treble signal output must not be confused, or treble signal to the subwoofer speakers, bass signal to a high-pitched sound, so diametrically opposed approaches sound system is really no sound comes out, because the frequency wrong! maybe also burned speaker! e divider failure examples: 1.05 friends in Changsha had a large bar, audio systems use a single CCP 12-inch wide-band 16 main speakers, dual 18 inch subwoofer speaker 22 only, there are other 20 only secondary speakers. However, opening a few days later found the main speakers in single 12-inch speaker out 2 only, start where technical staff thought it was normal damage, replace the 2 new speakers, but then a week in the Inland one and bad 6 only 12-inch full-frequency Horn, this is not normal, and in addition to the 12-inch main speaker fails, other speakers are no problem. Then I went to help checked system, found in the e-modulus prescaler Division of frequency is too low, I put the divider crossover point from 130Hz upwards to 230Hz, this problem will be solved, but the bass effect is better. In fact, the reason is simple: this system due to balance human performance, use a human voice performance better 12-inch wide-band at the beginning of the main speaker, electronic frequency divider crossover point in 130Hz concept, what is this? means system 22 44 only bass speaker only 18 inch horn can only issue 130Hz following sound effects really limited, a big waste of resources; and sub-woofer system 16 only 12-inch speaker has to pay more than sound 130Hz, we know that the sound intensity and excitement of the 200Hz around, so this 16 only 12 inch horn as diameter small simply overwhelmed, the frequency and method of use can result. Adjusted, 16 only main speaker only 230Hz above voice, the voice of 230Hz following only by 22 so sub-woofer is responsible for two sets of speaker base, collocation and more perfect, the key is to play their respective specialties. I have said above, the effect is important, but security is more important. 2, Shantou area a slow roll bar, use the 8 only double 18 inch bass speakers, 10-15-inch wide-band master speaker, party a shall always feel the bass is not enough, you do not want to increase the bass. I check system and found 10 main speaker through electronic divider, due to insufficient party said bass, acoustic bass frequencies allotted in the very high, at about, imagine 350Hz: adjust though it has increased by only 8 sub-woofer and loudness, but 10-15-inch wide-band main speakers at the above work, the 350H main speaker can say basically didn't give any bass. I immediately put the 10 main speaker line changed it to use the equalizer output directly, not through electronic dividers, the effect will be quite different! what I think we can calculate: let 10-15 inch main speaker of 20 only 15-inch speakers, increase the number of bass energy! some friends say that full-frequency sound without electronic dividers like does not conform to the rules? but we can not be rigid, to pay attention to the fact that breaking it!

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