ALFs OBs (BD-Design)

by Bert , Saturday, August 19, 2006, 10:20 (6467 days ago) @ ALF

Hi Alf,

Bert - if you are reading out there, can you comment on symmetry versus
assymetry in Open Baffles? ... in these experimental baffles of mine I
offset the drivers to give a different wave travel distance on either side
of the baffle ... I have made quite a few OBs over the last few years, and
I'm not convinced that this assymetrical driver placement is necessary
(but then I'm not absolutely certain that it isn't)... the fact that you
have made the placement symmetrical in the Quasars answers this question I
guess, but just to be sure ...all this theory muddies my waters
considerably :wink:

Theory is only useful if you have all the related data to work with. And that is where most people go wrong, most people only use limited data and hope that the rest will work out well. Same here... simply because it is impossible to have all data and simulate what is happening.

I usually start building things and develop on the fly. I do not know if it makes an important difference when the drivers are symmetrical or not, with the Quasar I do not have problems due to their linear placement or even with their relative sharp corners.

Perhaps the width, the depth and the "tube" help eachother cancelling out possible errors?

In theory it would be better to mis-align the drivers and have rather large rounded corners (small angled corners do not make any difference). Facing one bass driver to the opposite site also helps reducing distortion but that does not look "cool" unless you completely cover that driver (reducing free air movement again...).

Compromises, compromises....

Ciao,

Bert

--
BD-Design - Only the Best!

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