Hello PBNaudio, your input much appreciated. I'm just getting back to this project for 'the perfect cabinet" for the B&W drivers presently in the synthetic cabinets of the B&W Concept 90 CM1s (which vibrate 'nicely' with very little energy input ;-) .
I now have someone who is happy to do the cabinet work as an interesting joint project and has the necessary woodworking tools and skills; as he would like to make speakers for himself from a kit. I enjoy music through the CM1's (with 25 lbs of lead on them) so have time to do what I want. I like to think there may be a better way to provide 'breathing room" behind the cones than simply using a conical opening-which I appreciate as practical- so I want to evaluate more complex ideas. Any suggestions for something more 'extreme'? I'm not the least concerned with diminishing returns-simply going all out--without wild expense. What do you think of a "variably" slotted opening instead of straight cone?
I now have someone who is happy to do the cabinet work as an interesting joint project and has the necessary woodworking tools and skills; as he would like to make speakers for himself from a kit. I enjoy music through the CM1's (with 25 lbs of lead on them) so have time to do what I want. I like to think there may be a better way to provide 'breathing room" behind the cones than simply using a conical opening-which I appreciate as practical- so I want to evaluate more complex ideas. Any suggestions for something more 'extreme'? I'm not the least concerned with diminishing returns-simply going all out--without wild expense. What do you think of a "variably" slotted opening instead of straight cone?