Car audio navigation of choose and buy some attention
The choice of car audio navigation is not the highest is the best price, but for the best. So when the choose and buy needs to pay attention to the following several aspects.
1, the input sensitivity input level, this is the main function of power amplifier with the host cohesion good points. Keyword is not distortion power matching, that is to say cars host biggest without distortion in the output signal to the power amplifier, adjust the input sensitivity of power amplifier, also is absolute guarantee there will be no clipping distortion condition has the largest power output. Generally speaking, the input sensitivity adjustment half should adjust the position of the weak; Is too large, the dynamic signal output will have a big distortion.
2, qualcomm choose HP, before this function is usually choose the output of the channel, with its function knob is high frequency reduction to common denomiator point; Usually choose around 50-80 hz. In general, before the sound field frequency division mode should be selected for qualcomm, this can reduce the power loss before the sound field, acoustic field before and at the same time can protect the speaker.
3, choice of low-pass LP, this function is usually the sound channel output to the bass, with its function knob is low frequency reduction to common denomiator point; Usually choose in about 50-80 hz, the main and the acoustic field to cooperate.
4, bass balanced BASSBOOST, is to adjust the bass listening function regulation. There are many people like to dispatch the bass balanced too large, such as + 6 db or more, actually otherwise, it would have been easy to burn out equipment. Usually within 6 db adjustment, though it may be transferred to the + 12 db.
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