what if you put too much lead shot in your speaker

In order to be clear and fair, we should distinguish between 'different' and 'better'. Lead was my holy grail for all things vibrational in terms of audio, until I saw the results first hand, from a completely, and I should say more open perspective.
I have speakers that have a 'lead chamber' at the bottom, and I used it for that purpose. The dynamics died (Don McLean's, The Day the Music Died") Everything exciting about music, dynamic contrasting, natural decay, all went away. We put the speakers on some spikes (Sistrum, and no I do not know the owners of the company, and have NO VESTED INTEREST HERE) under them, and it was disgusting to hear the difference. Different is not better, and better is not different, oh they may be coincidental, but not in this instance.
The spikes left the speakers 'singing' and doing the same things that all great products can do, and the lead, literally killed that sense of effortlessness.
Beware of the lead fix. As a former devotee of that, I am now cured, because I witnessed it first hand.
Best,
Larry

That's interesting Larry. I would consider that a poor design then. I've only had the VS VR4jr s and they sounded much better after installing the lead shot. It helped to keep the cabinet from vibrating. But of course with other speakers YMMV.

Rob

I filled a pair of VR4jr's with lead and it made a big improvement.

If you use the correct design geometry and material choices then speaker vibration can be channeled away and not be retaimed in the cabinet..like when using lead shot..I think Larry worked with Albert at one time..Tom

Yes I did.
The geometry and the resonant peaks of the cabinet are all important. I can only say that, violins and violas don't use lead to dampen them. Pianos don't use anything to 'deaden' them either. The natural order of 'musical' instruments is to allow for vibrations to occur at their normal occurances. If My own speaker, which I designed, sounded better without a deadening lead shot, what would that tell you? The Sistrum points, ( I don't even know what they are called) helped, then something other that what you or I think, is at work here.
I am not trying to change your mind, just broaden your horizon, just as mine was.
Larry