As in the Aquarius stuff, it supposedly improved the LF response.
I would think there would be drawbacks at Mid and Hi frequencies,that might be acceptable in the lower ranges say below 500 or 400 hz
As far as I can tell JBL in many woofers has traded efficiency for LF response via mass loading the woofer.
This would be an acoustic load as in a horn, without the bulk of a horn.
It seems as though JBL did much of the work on the Aquarius by ear as there were no design tools.
I am just trying to break out of the triangle of size/efficiency/frequency response that seems to limit potential.
Here is the writeup on Aquarius.
http://www.audioheritage.org/html/pr...l/aquarius.htm
I am interested in perhaps persuing the concept as a DIY utilizing a 10 or twelve inch woofer to be named later( and purchased later)\
I would love to hear any Pros Cons insults or comments.
Thanks
Harry