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Re: Au-Rock-o Sub, yeah I've been busy.
Hmmmmmm... I haven't tried the BASH amps so I don't have actual experience with this problem. Let me brainstorm a little with you...
Ok... try this (if you can find the right materials.) Mount the amp with a rubber gasket "trim ring". Then, use small rubber grommets on each screw head before screwing the plate into the cabinet. When done properly, there will be no direct physical path for vibrations to work their way into the plate. The mechanical vibrations will have to travel through the rubber gasket or rubber grommets first. And that's usually lossy enough to not allow mechanical transmission of those pesky vibrations.
The "stagger-stud" concept used in sound proofing houses sort of uses this isolation idea. In an ordinary wall, the mechanical vibrations (resulting from sound pressure waves hitting the wall) travel through the drywall... into the stud... and out the drywall on the other side because all three are mechanically coupled together with drywall screws. By switching to "stagger-studded" walls, the direct mechanical coupling is eliminated, and sound attenuation is significantly better.
Another thing that you might try:
... is to figure out where to best damp the offending plate with some sticky backed linoleum tile pieces. (hopefully out of site, on the inside)
Think of a child's toy xylophone. Those thin pieces of metal ring pretty loud when they're supported ONLY at the two mounting points. Touch the metal anywhere else with your finger and you dampen the sound to almost zero. It all has to do with Nodes and anti-nodes... use them to your advantage to solve the BASH amp plate vibration problem. There will probably be a few key spots that you can attach the linoleum to help dampen the offending vibrations.
Hope my rambling helps. (two reasonable approaches based on principles of Physics and Mechanical Engineering.)
Seems like the manufacturer should have addressed this issue. You're probably not the only one that encountered the plate vibrations.
Originally posted by xavier
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My problem is when I use the BASH amps (which I really like the sound of) the plate vibrates. Usually the music covers it up, but if it's a section of a piece that's mostly bass without much going on up higher then I can hear the plate amp buzzing and vibrating, despite being in its own vented sub-enclosure. Grrrrr..... Next time they're getting they're own cabinet.
Ok... try this (if you can find the right materials.) Mount the amp with a rubber gasket "trim ring". Then, use small rubber grommets on each screw head before screwing the plate into the cabinet. When done properly, there will be no direct physical path for vibrations to work their way into the plate. The mechanical vibrations will have to travel through the rubber gasket or rubber grommets first. And that's usually lossy enough to not allow mechanical transmission of those pesky vibrations.
The "stagger-stud" concept used in sound proofing houses sort of uses this isolation idea. In an ordinary wall, the mechanical vibrations (resulting from sound pressure waves hitting the wall) travel through the drywall... into the stud... and out the drywall on the other side because all three are mechanically coupled together with drywall screws. By switching to "stagger-studded" walls, the direct mechanical coupling is eliminated, and sound attenuation is significantly better.
Another thing that you might try:
... is to figure out where to best damp the offending plate with some sticky backed linoleum tile pieces. (hopefully out of site, on the inside)
Think of a child's toy xylophone. Those thin pieces of metal ring pretty loud when they're supported ONLY at the two mounting points. Touch the metal anywhere else with your finger and you dampen the sound to almost zero. It all has to do with Nodes and anti-nodes... use them to your advantage to solve the BASH amp plate vibration problem. There will probably be a few key spots that you can attach the linoleum to help dampen the offending vibrations.
Hope my rambling helps. (two reasonable approaches based on principles of Physics and Mechanical Engineering.)
Seems like the manufacturer should have addressed this issue. You're probably not the only one that encountered the plate vibrations.
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