If I had to guess without seeing the cabinet, I'd suspect it most likely that the airborne vibrations are exciting the cabinet door. That in turn is probably causing the door to vibrate against the cabinet frame and generating audible vibration. Inspect the cabinet and see if this looks possible. If so, you can try to damp the interface of the door and cabinet to ameliorate the issue. To start diagnosing a solution, I'd try using small bandaids or blu-tack dots applied to the inner edge of the door frame where it meets the cabinet. If this helps, you can cut black felt into thin ribbons and apply them to the door frame for a more attractive solution. Maybe just a few felt dots sold in home repair stores would be enough. If the cabinet door is making the noise, something like a body panel dampening sheet sold for auto sound applications should work (they ain't pretty though.). You can buy cheap stethoscopes at some auto parts stores to help diagnose and isolate vibrations also.
Isolation damping for furniture
I have an issue with a cabinet sited on the rear wall of my listening room generating noise from vibration in the door panels. The doors fit tightly but when you place your hand against them during heavy bass music, you can feel the minute vibrations.
Looking for a cheap dampening solution - would I be best to look at vibration damping feet for the whole cabinet or is it just as likely that the vibrations are from the airborne sound waves? Otherwise, should I look at a damping sheet of somesort applied to the inside of the resonating door panels? Has anyone experienced similar issues and how did you resolve, short of removing the cabinet from the listening room. Thanks for any help.
Looking for a cheap dampening solution - would I be best to look at vibration damping feet for the whole cabinet or is it just as likely that the vibrations are from the airborne sound waves? Otherwise, should I look at a damping sheet of somesort applied to the inside of the resonating door panels? Has anyone experienced similar issues and how did you resolve, short of removing the cabinet from the listening room. Thanks for any help.