Building a bookshelf speaker and need to hear your thoughts on placement of the driver on the front baffle.
I am using an 6” Tannoy dual concentric (coaxial) driver but for all purposes it is more similar to a full range driver than a traditional multiway with separate woofer and tweeter. So the question is;
“Basta edge” software is showing me that the driver has lowest ripple from diffraction when placed in the corner of the baffle. However I do not see any monitors being built with such driver placement. It is usually on center
why? Shouldn’t it always be in the corner as the software is modeling the flattest response?
Thanks for your input!
I am using an 6” Tannoy dual concentric (coaxial) driver but for all purposes it is more similar to a full range driver than a traditional multiway with separate woofer and tweeter. So the question is;
“Basta edge” software is showing me that the driver has lowest ripple from diffraction when placed in the corner of the baffle. However I do not see any monitors being built with such driver placement. It is usually on center
why? Shouldn’t it always be in the corner as the software is modeling the flattest response?
Thanks for your input!
You are not removing the diffraction, you are just rearranging it to suit one axis. Can you try it with roundovers?
All I could read about cabinets, old authors suggested that the bass unit must be as close to floor as possible. And the highs one, near the top but if the cabinet is of the bass reflex kind, thus the aperture must go under the speaker. This is because sound waves from woofers are best reflected by walls and floor being tweeters usually more directive. My only one experience was a set of 3 Karlson's, two of them with 15" plus 4" (both cone units) and the other, 12" + 4". No need for such a doubt in me.
So then if I do round overs the offset is not necessary? From the software simulation the driver has to be significantly offset on both axis, placing it in the very corner of the baffle.
When you put the driver closer to the middle it gives more baffle support and the directivity becomes symmetrical.
You really want roundovers in both situations. They are different approaches. The baffle offset method of looking at one axis by itself doesn't consider the wider situation.
You really want roundovers in both situations. They are different approaches. The baffle offset method of looking at one axis by itself doesn't consider the wider situation.