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Usher CP-63XX owners, have you added Lead Shot?

I am awaiting my 6381's to arrive at the dealer this week, but am curious how many of you that own speakers from this line, have added either sand or lead shot? After looking at the prices of shot, it is quite a bit more expensive than sand, but should not be as messy. Did you notice any difference in sound quality, or are these speakers already heavy enough?

Thanks
jvm051

Showing 1 response by kehut

kehut's avatar
kehut
668 posts
 
I had both the 6371 and 81's. Its important to break them in for a time before using shot or sand in them. Give them a good 300 hrs and afterwards I used steel shot in the cavities. Start with 10 lbs in each speaker. You can add in 2 lb increments and listen for the changes. I started with near 30lbs in them and that amount took too much mid-bass away.The dealer was using "50" lbs and said to "load 'em up"! DONT do that! Trust me... I ended up with only ~13 lbs in each, which was just right. Deep tight locked in bass..Use the shot judiciously as a little will make noticable changes. The speakers change too much during break in to get a true reading on the bass, so putting in shot before this will end up costing you time and sweat putting in and taking out shot..(very messy and those Ushers are quite heavy!)

Good luck, and enjoy them..They are great sounding speakers!
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