ptss OP1,295 posts03-10-2017 11:56amWithout precisely addressing the "damping" properties of their
polymer sub enclosure-- as the
"specs" of the polymer are unknown to me-- I feel the shape of the
sub enclosure is of more benefit in breaking up other backwaves in
the overall cabinet enclosure, rather than benefiting the elimination of the
mid range backwave. Here is a paragraph from a piece done by Doug Blackburn
which I find appropriate and succint;
" Undamped backwave energy can bounce around inside the speaker several times, eventually hitting the back of the driver’s cone again. When the backwave hits the back of the cone, the cone radiates some of that sound into the room as distortion. The backwave sound is delayed and decorellated. It is no longer related to the sound on the original recording; it has become distortion. The delayed backwave sound did not exist in the original recording, and this makes it distortion."
The laws of physics are what make cones radiate the same amount of
sound to the rear as well as the front.
Perhaps Magico has a magic stuffing material?
Where does that energy go?
This is speaker building 101, any "box" loudspeaker has to deal with that issue. If you wish to know how successful Magico is in doing so, look at the THD measurements of the S5, the lowest ones the NRC ever measured ( http://soundstage.com/index.php?option=com_content&view=article&id=1043:nrc-measurements-mag...).