Car Speaker Response

It determines the maximum sound speakers that can emit a strong feeling of sound macro is the biggest shocking . The indicators in terms of multimedia speakers , in fact, the significance is not great unless the room is a great need to have enough sound pressure to meet the bookshelf speaker of the listener . International speaker on the power of performance indicators marked in two ways: Rated power ( long-term power ) and Maximum Power ( PMPO instantaneous power or musical power MPO). The former refers to the speaker within the rated frequency range provides a continuous analog signal waveform at a certain interval and repeat a certain number of times, without any damage to the speaker maximum electric power ; latter refers to the speaker can withstand short-term maximum power . Typically businesses in order to meet and consumer psychology , there are often large music power marked tendency , so we should buy multimedia speakers rated power prevail. Speaker's power amplifier chip is mainly determined by its power , in addition to the power supply bookshelf computer speaker related. Although the speaker's power is better, but enough is enough for the average home user 20 sq. m around the room speaking , 30W speaker , or a combination of 2.1,4.1 about 40W subwoofer is already more than enough , and then high-power speakers only help you waste money that quot;? merit " in the power side陎, Hongxi speakers already for you to make the best choice , so if you are fond of the words of the speaker of the Chang Foundation , the power can be ! no longer consider the frequency response of the frequency range : the former refers to the playback frequency range of the speaker and the lowest effective playback frequency among the most significant , in Hertz (Hz); the latter refers to a constant voltage output of the audio signal and the speaker when connected to the system , the sound pressure generated by the speaker changes with increasing frequency or attenuation occurs , the phase change with frequency of the phenomenon , the relationship between changes in sound pressure frequency and phase associated with the known frequency response units decibels (dB). sound pressure and phase lag versus frequency curves are called " amplitude-frequency characteristics " and " phase-frequency characteristics " , collectively, the " frequency characteristics ." this is to investigate the merits of the speaker is an important performance indicator , it and speaker performance and price has a direct relationship , its decibel value smaller the speaker frequency response curve more fair Tanzania , distortion smaller, higher performance , such as : a speaker 's frequency response is 60Hz-18kHz +-3dB for the present the middle and low speaker, mostly because of poor sound quality ( distortion serious ) or the manufacturer's technical staff of the concept of frequency response and the frequency range of the speaker leads to no clear labeling . usually marked frequency response in see quot;? system frequency response "and" amplifier frequency response " to know " the system frequency response " is always better than " amplifier frequency response "small range , so only marked" amplifier frequency response " has no meaning , which Some just to deceive unsuspecting consumers. Speaker manufacturers now generally marked on the system frequency response range is too large , high-frequency part of the difference is not a lot , but in the low end is too outrageous : three hundred dollars dare wooden speaker frequency response of the low-frequency standard to fifty or sixty Hz or even lower , to know foreign brand high-end speakers ( worth thousands of dollars ) only in the vicinity of the low-frequency Frequency standard fifty or sixty hertz , so we advise bass ears must be true , do not easily believe propaganda value on the list . Another point to note is : now there is a wrong tendency to buy multimedia speakers , the lower frequency limit value is too low frequency part . To know