Cheap tweak from Virtual Dynamics:

Albert,
You would make a great candidate to do the brass for steel swap out. Lotsa drivers lotsa steel. I performed that surgery on my Dunlavy 4's some years back. I used brass machine screws intead of wood screws. The machine screws had a higher number of threads and they extended all the way to the head unlike the wood screws. Made for a more tuneful sound that was also less noisey. Tom

Interesting thought, I don't doubt you. All materials have a sound and brass is definitely more friendly than steel.

Maybe I should contact the tech guys in Denmark for advise, the same ones I spoke with when I redesigned the crossover.

"I love cheap tweaks that have potential to improve sound."
Have you heard of EnABL?

Can't beat $26.00

Cdc,
Very interesting. I remember a fellow writing in Audio Amateur some years back about gluing felt strips on the face of a cone driver with the idea of breaking up standing waves and how well he thought that worked. If I decide to EnABL my drivers I will use the AVM acoustic paint instead of the paint sold in the kit. Tom

Hi Tom,
One guy used toothpaste on his Jordan's as a reversible experiment. Someone else used Post-It's!

[url=http://www.diyaudio.com/forums/search.php?s=&action=showresults&searchid=1163808913&sortby=lastpost&sortorder=descending]diy audio[/url]also has foam triangles you stick on the back of the driver. Called Mamboni process or something close to that.

[url=http://www.hawthorneaudio.com/forums/viewtopic.php?f=2&t=1429&p=20995&hilit=enabl]hawthorne audio[/url]has detailed info on applying EnABL by Budp Nov 29-30,2007.

I don't know why the links look so funny but they work.