Subwoofer內置volume 和 Phase 制意義何在？

lyl223

Then try to share your experience here.
Big_McIn 發表於 2010-10-26 03:17

    Sure, C-hing. I'm still in the learning phase. I did try to reset the distance of subwoofer in AV AMP, it gave me stronger surrounding feeling in terms of bass. :)

Big_McIn

Sure, C-hing. I'm still in the learning phase. I did try to reset the distance of subwoofer i ...
lyl223 發表於 2010-10-27 23:29

Good! That means when different sound sources of low frequency coming from 7.1 get to equilibrium, we can have better content of low frequency.

Now try to reset the distance of the Sub back to the actual physical distance in the AV Amp.

Then try to adjust the phase starting from 0 degree up to the maximum and listen to the change of the sound at 80Hz and 50Hz.

Big_McIn

其實用十仔入面既 auto setup
可唔可以 auto setup 埋 phase 個 setting 呢?
如果用 Room EQ 既 software
...
聖龍 發表於 2010-10-27 22:47

JL Audio 和Velodyne DD Series都說明要自己調校Phase。

可再重温一吓DD-15 set-up
http://www.post76.com/discuss/vi ... extra=&page=265

我覺得要了解phase的意義。

Sub Phase與7 channel不吻合，低頻會怎樣？

Sub Phase與7 channel完全吻合，低頻又會怎樣？

lyl223

Good! That means when different sound sources of low frequency coming from 7.1 get to equilibrium, ...
Big_McIn 發表於 2010-10-28 01:15

    Thanks, C-hing. Will try it after I get back HKG this Saturday.
    By the way, may I ask how I should set up cross-over freqency for subwoofer in AV AMP for best performance?

Big_McIn

Thanks, C-hing. Will try it after I get back HKG this Saturday.
    By the way, may I ask how ...
lyl223 發表於 2010-10-28 10:54

From my point of view either 80Hz or 100Hz can be used as the best crossover point set up in the AV Amp.

Since the sound wave of 80Hz or below is non-directional, you'd better choose it if you just use 1 subwoofer and it's not located below the center of the screen.

If you are using multi-subs that are located symmetrically, then you can choose 100Hz or even 120Hz so as to let them output something Punch-Like low frequency.

CKKeung

Even if we rely on AV amp auto setup, there are precautions to take.  Otherwise it will be inaccurate.

I find the following instructions & comments/experience quite useful:
http://www.avsforum.com/avs-vb/s ... 456895#post14456895
http://www.avsforum.com/avs-vb/showthread.php?t=795421

lyl223

From my point of view either 80Hz or 100Hz can be used as the best crossover point set up in the A ...
Big_McIn 發表於 2010-10-29 02:24

    Many thanks, C-hing. Will try it later today after back home. might come back to you with some questions, hope you don't mind.