是否以Sound Level Meter 度在Amp Sub output 0dB 時 , Adjust Sub 上面個Volume switch 直至 Sound Level = 75dB
然後先再adjust Amp Sub output 個 Level
另外 , 個Amp有Crossover , 咁個Sub set Crossover to max 定用Subwoofer Direct 好呢
正在瀏覽這個版面的使用者: 沒有註冊會員 和 5 位訪客
wmmokk 寫:是否以Sound Level Meter 度在Amp Sub output 0dB 時 , Adjust Sub 上面個Volume switch 直至 Sound Level = 75dB
然後先再adjust Amp Sub output 個 Level
另外 , 個Amp有Crossover , 咁個Sub set Crossover to max 定用Subwoofer Direct 好呢
luckybeanbean 寫:first, if you have small satellite speakers, you need to know how low it can output. If they can output 80hz, then you can set the subwoofer to 80hz. if they are very small speakers, you might need to set at 100hz or 120hz.
second, if your subwoofer has volume switch, you can either set volume at av amp or subwoofer. you can first set av amp to 0 for subwoofer and adjust the subwoofer volume to a good level. then later use av amp to do the fine tunning again.
usually, subwoofer volume level is hard to measure with sound meter. (you need to use slow, c-weighting in sound meter). It is better to use your ear to detect if it is loud enough or not. 耳仔收貨. play music cd, concert cd to listen will be better than play dvd. hope this helps
都末講phase
yo yo ma 寫:pls talk more about phrase.... I have a hard time tuning it.
luckybeanbean 寫:first, if you have small satellite speakers, you need to know how low it can output. If they can output 80hz, then you can set the subwoofer to 80hz. if they are very small speakers, you might need to set at 100hz or 120hz.
second, if your subwoofer has volume switch, you can either set volume at av amp or subwoofer. you can first set av amp to 0 for subwoofer and adjust the subwoofer volume to a good level. then later use av amp to do the fine tunning again.
usually, subwoofer volume level is hard to measure with sound meter. (you need to use slow, c-weighting in sound meter). It is better to use your ear to detect if it is loud enough or not. 耳仔收貨. play music cd, concert cd to listen will be better than play dvd. hope this helps
都末講phase
Panzer 寫:check 前置喇叭最低輸出頻率時要留意有無衰減,例如最低輸出頻率為50Hz, -3db limit,雖然可以去到50Hz,但係到50Hz時個音壓就會比中頻時低50%,所以set cross-over frequency時唔好就咁set去個喇叭個最低點。
wmmokk 寫:luckybeanbean 寫:first, if you have small satellite speakers, you need to know how low it can output. If they can output 80hz, then you can set the subwoofer to 80hz. if they are very small speakers, you might need to set at 100hz or 120hz.
second, if your subwoofer has volume switch, you can either set volume at av amp or subwoofer. you can first set av amp to 0 for subwoofer and adjust the subwoofer volume to a good level. then later use av amp to do the fine tunning again.
usually, subwoofer volume level is hard to measure with sound meter. (you need to use slow, c-weighting in sound meter). It is better to use your ear to detect if it is loud enough or not. 耳仔收貨. play music cd, concert cd to listen will be better than play dvd. hope this helps
都末講phase
Panzer 寫:check 前置喇叭最低輸出頻率時要留意有無衰減,例如最低輸出頻率為50Hz, -3db limit,雖然可以去到50Hz,但係到50Hz時個音壓就會比中頻時低50%,所以set cross-over frequency時唔好就咁set去個喇叭個最低點。
我個Amp 得一個Crossover Frequency, 80Hz. 所以冇得攪 , 只是我想知個Sub set番Max Crossover 和 Subwoofer direct 係咪冇分別