|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
201.237.220.184
In Reply to: RE: Bass reflex with port on the front or on the back ... any difference ? posted by beppe61 on December 07, 2014 at 09:13:19
You're welcome.
Ported speakers typically produce more bass than sealed ones. The port creates a volume of 'trapped' air with a particular mass. Above a certain frequency, the port produces very little output and the box acts like a sealed box. At the port resonance, the port actually inverts the back-wave of the speaker and adds it to the front wave. Below that frequency, the port simply becomes a hole in the box which allows the back wave to cancel out the front wave.
For this reason, a ported enclosure will extend deeper in the bass, then drop off quickly whereas a sealed enclosure will roll off earlier and more gently. Designing a good ported enclosure requires careful speaker/enclosure/port matching to get the best behavior from the speaker.
Follow Ups:
Hi and thanks again
So now i understand why the rear port is so popular
Now that i have googled better i see almost all rear ported speakers today
In the past they were all in the front baffle
It must work for sure seeing how common it is
Thanks again
Kind regards,
bg
In my opinion, the rear port is largely a cosmetic decision. The port can also produce some undesired wind turbulence noise which is another reason to move it to the back. Turbulence is also the reason modern ports are flared or have other exotic opening shapes.
HI and thanks again
But i am quite sold more in general on bass reflex because i see speakers of unbelievable high quality adopting this arrangement
So i think it must work very good
And i also prefer a sharp cut in the bass instead of a slow slope ...
Thanks again.
Kind regards,
bg
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: