If you own a VMPS speaker that uses the 15" Passive Radiator and you have not upgraded/replaced your PR, I HIGHLY recommend you do so. I just got my replacements this morning and the bass is tighter and deeper and better in every way possible. And this only based on an immediate 1st impression with no break in/tuning time. The replacement PR's are a much stouter construction and make the original ones feel flimsy by comparison. I had replaced the foams on my original PR's several years ago/ and glued treated the cones and I also noticed upon removing them, that the original spiders had since failed.
To install the new Pr's I enlarged the cutouts so they sat down in them like the originals, the holes only need to enlarged about 1/16" all the way around. I am running 5 washers ATM. This is in my Super Tower R/SE's. They are now sounding better than they EVER have.....and that's saying something. Contact John Casler to get them.
Thanks Rick
Hi Rick,
Glad you received your UltraMega Passives OK and go them installed.
Now you know why we call them ULTRA-MEGA. They are like the stock PR on STEROIDS!!!
You comments are typical and I found the same thing when I first installed "just one" of these as a TEST in my 4 LARGER SUBS.
That is, I only installed a single PR and left the other three stock. The difference with just one was VERY STRONG and now I have done all 4.
Yours is the first use in the Towers, so that is important to know.
Again, glad you are happy.