Originally Posted by ratbuddy
Hopefully my V1510DF pair ships out next week, can't wait. I've ordered a 25 foot and a 6 foot 12v trigger cable to avoid relying on auto-on, and now I'm considering a pair of SubDude-HT platforms for them. The platforms are 18x22, and the subs are listed at 17.25x22, so it should be a very good fit. I don't know if these are snake oil though. The goal would be to shake my walls, windows, shelves, etc. less. Any opinions or experience with a downfiring PSA sub on one of these platforms?
I gave my friends who commented above "Likes" but the SubDudes might
help a bit, depending on a couple of factors. If you are on a suspended wood floor, decoupling a subwoofer from the floor (with almost anything fairly thick and inert) can reduce the direct vibrations which are transmitted from the subwoofer cabinet to the floor. That can help somewhat to reduce transferred vibrations from the subwoofer to the floor, and then to adjacent walls.
But, at higher volume levels, the subwoofers will still be producing SPL and particle velocity which will make the floor vibrate, and other things in the room vibrate sympathetically at certain frequencies. So, decoupling the sub won't eliminate potential vibrations. At best, it will reduce them somewhat at lower volume levels. The fact that the sub is down-firing is pretty much a non-issue, in my opinion. The vibrations from the cabinet to the floor would be directly transferred, no matter which way the driver points.
Something that a decoupling pad, like the SubDude, won't do is to reduce what neighbors on the floor below will hear
. Low-bass frequencies will go right through the pad as if it isn't even there--just as they go through the subwoofer cabinet, and the floor, to start with. My own advice would be to get the subwoofers first, and then to determine whether or not you really have a problem with vibrations transferred through the floor, to other parts of the room.
If you do, you can try to DIY something yourself, or you can buy a SubDude to try that. Even then, you may still need to work directly on the things that are vibrating in the room. But, I would wait and see before worrying about it.