回復 9# JKC710
應該講佢以80hz為分頻點，所以用80hz黎試。亦都唔建議crossover低過80hz
Very good!
{:1_253:}
MY subwoofer is on the left side n is only 1 ft. away from the left front speaker.
Do u mean i should stuck my head in that 1 ft. space to listen to it ?????????
Good Report Shareing{:6_193:}
MY subwoofer is on the left side n is only 1 ft. away from the left front speaker.
Do u mean i sho ...
ac388 發表於 2011-8-9 06:26 http://www.post76.com/discuss/images/common/back.gif
我無跟足， 坐係皇帝位聽就算
mark for information. thx for sharing
阿師兄, 如果你用果套 "龍虎門" 作準就寫呢編文既話
呢 D 咁既味精聲不如慳返, 請用你認為調好既效果再睇多幾套先
但千祈唔好用港國產片黎試
回復 17# akira11092
出呢個post 只係簡單調教，令前置同十仔in phase,無講為試龍虎門而出呢編文。阿師兄不如推介下睇戲夠刺激又無味精既既低頻比大家分享下
用幾分鍾去跟此方法黎調我想總好過玩左十幾年都比隻十仔玩。
調完唔ok咪set番之前個setting羅。
我慳番可以唔洗出呢篇post tim,
Thx for sharing & enjoy!{:1_326:}
本帖最後由 nsl.alan 於 2011-8-9 13:23 編輯
I found another articles that is more clear
Invert the polarity of both main speakers by connecting the red (+) speaker lead to the black (-) speaker post of each speaker. Connect the black (-) speaker lead to the red (+) speaker post of each speaker. Play a test CD with a frequency exactly at the crossover frequency between the main speakers & the subwoofer. Sit in your listening position, and have someone rotate the phase control until you hear the least amount of bass. Now put your main speakers back in correct polarity. The sub and main speakers are now optimally phase-aligned.
When you played the test tone at the crossover frequency, the main speakers and the sub were both reproducing that frequency. When the sub's phase control was set so you heard the least amount of bass, the main speakers and subwoofer were maximally out of phase. When the woofers on the main speakers moved forward to create an acoustical compression wave, the sub's cone moved backward to create a rarefaction. The two waves combined and cancelled, producing minimum sound. Now when you put your main speakers back in correct polarity, the main speakers and subwoofer are maximally in-phase. The cancellation notch is easier to hear than the corresponding peak.
For subwoofers that only have a polarity (invert) switch, simply select the switch position to where the bass is louder.
