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Replacing driver screws with brass screws

There was some discussion about this on Millercarbon's thread about the Moab speakers, and I wanted to pursue the subject further without interfering with his thread.
As I stated there, I have heard about this practice for quite a few years, but never tried it because it seemed like one of those lunatic fringe ideas; and even though I actually really enjoy trying tweaks, and have found many of them effective, I just was not prepared for what this one did for the music coming out of my speakers. 
Specifically, it improved the detail in ambient trails, focus in general, complex harmonics in voices and stringed instruments, and instrumental separation. It is not subtle, and it is immediately noticeable.
So, I am curious to know how many of you out there have tried this, and what your experience has been.
Thanks, John  
128x128roxy54
oldhvymec
5,101 posts
 
OP if it's the same density, sending a controlled tone you can hear the difference. This is just in stereo.. You can use just a tube and put it to your ear over the securements. Hit the tone, and listen... Tighten for a higher pitch...., Try not to back off.

Torque to TONE.... Old Ways...

Regards
noromance's avatar
noromance
9,897 posts
 
Torque to TONE.... Old Ways...
This could be the best post here. 
noromance's avatar
noromance
9,897 posts
 
Try copper screws.
millercarbon's avatar
millercarbon
12,531 posts
 
oldhevymec, seems you're saying vibrate when what you mean is rattle. Tight won't rattle but everything vibrates, only question is how. You're probably right about torque to tone. Tighter probably is higher in the same way a guitar string is adjusted higher by tightening. The difference being the relatively stronger screw is going into MDF and probably cannot be tightened anywhere near enough for this to be noticeable. What probably would be noticeable is tightening compressing the gaskets. Just not to the degree of tone you're talking about. Lots of people tighten mounting screws, I sure have, never heard anything like this though.
clearthinker's avatar
clearthinker
1,582 posts
 
What about gold-plated brass screws?
Remember the first Krells?  KSA50 and KSA100.  They have these fixing the front panel to the chassis.

Now I had always thought they were there as decoration????


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