Subwoofer Footing - Connect or Isolate?

Some folks like BASS exciters hooked to there seat. Maybe mattmiller is one of those. What ya think? REALLY likes to feel it.

TT guys tend to pay just a little more attention to vibration mattmiller "I Like the Feelin'", don't work to well..  Different approach.

Baffle widths, flat surfaces sharp corners, all take away from "Sound is Round" "Smooth" "Clear" "Fast". 

EVERYTHING with uncontrolled vibration and every surface that collects it add to the issue. It's pretty weird when you get rid of it for the first time..
AND get to hear the difference.

It's also nice to have cabinets that sound like a fresh telephone pole when you knock on it. Curb and gutter type of quiet.

Regards

Yes, so much better to avoid isolation.  I mean, those subwoofers just don't seem as cool if they're not making my walls rattle, or vibrating things off shelves, or making the woofers pump on my speakers when I'm spinning vinyl on the turntable.

The last thing you want to do is put a subwoofer on springs. At some low frequency it will start shaking. Vibration/shaking in any speaker equals distortion. Just put your hand on the sub while playing an organ piece or better yet run a sine wave sweep and you can find all the resonance points. Keeping a subwoofer from shaking is not easy. Certainly, mass helps as does containment. In the home environment spiking it to a concrete floor would be best followed by spiking it to a wooden floor. The wooden floor's resonance point will hopefully and usually be above the subwoofer's range. Even so the floor is going to resonate regardless from airborne excitation. New designs Like Magico's big subs are using a method of force cancelation. They put drivers in opposite ends of the enclosure running in phase with each other thus their Newtonian forces cancel. This effectively stops the enclosure from shaking but does not stop cabinet resonances, another issue all together. Magico does it by building a battleship enclosure. 

I agree...put a sub on springs is ridiculous at best.Maybe good if your trying to bounce around like a pogo stick.

Somewhere Richard Vandersteen posted an excellent article on speaker isolation and he makes a very good point I've made before:

You want to prevent the speaker's ability from moving back and forth.  The forces of the drivers push against the cabinet and can cause it to move, which is audible even when there's very little of it.

So, I would stick to IsoAcoustic style of pucks for a subwoofer and nothing more springy.