Brass screws make a real difference on Dunlavy s ?


As some of you know, I have just about every model speaker John Dunlavy ever designed. I've tried a few tweaks, but never replacing the standard driver attachment screws with brass ones. I've read some posts that it really does make a difference, but before I make a run to the hardware store, I would appreciate any thoughts on the matter. Thanks in advance!
brauser
Well, I took your advice and decided to tighten the screws on the SC-V(s)and everything in the HT room ranging from the SC-IV(s) to the SC-I center channel. Some of the screws were very snug to begin with while others took a couple of rotations to tighten to a solid point. Putting on some high rez very familiar music showed the effort to be worthwhile. Not talking about an earth shattering difference, but observable.

Many thanks!!
Interesting. Just remember, the next step after nice and tight is really loose.
Many of you report a difference after tightening the screws on the drivers ("it helps", "it was beneficial", "worthwhile") and I remember reading of this before. No one in the thread describes what changes occurred to the sound of the speakers after tightening the screws. Bass more extended?, resolution improved, clarity improved?, more coherent?
Martin Colloms' article on, "PRAT" gives some good descriptions of how and why tightening speaker system screws can affect your reproduction. Especially page 5: ( http://www.stereophile.com/content/pace-rhythm-dynamics-page-5 )
Good question(s) Foster. What I noticed was a modest amount of additional transparency. It is the sort of improvement you get when using a good CD cleaner or beveling the edge with a lathe. Last night was fun using some very familiar high def CDs as reference, and then applying most all my standard tweaks in addition to the tightened screws. I have never heard the reference two channel system sound better. This evening I plan to do the same sort of thing to the reference HT room to see if similar improvements are found. I will post the results.