Horning Eufrodites - help needed with boomy bass

I have found that putting speakers on a Symposium shelf will reduce the tendency for bass to boom, particularly if the flooring is suspended (not on a solid concrete base) and made of wood. I use Svelte Shelves (the thinnest Symposium platform) which is less than an inch thick. Other platforms are much taller. I would not say that platforms are a "generic" positive, they can make some systems sound too dry if that is already the tendency of the system. In other words, you will have to experiment.

If booming is an issue, energy absorbing shelves or footers like those by Stillpoint (also energy absorbing, and not designed to couple the vibrational energy to the floor) will be of help.

It would be very interesting to compare the "absorbing" product to the "mechanical grounding" method to hear which is more effective in minimizing/eliminating the bass boom . I'd hope Mr. Horning would offer more input, who has more insight on this speaker than him?
Regards,

"It would be very interesting to compare the "absorbing" product to the "mechanical grounding" method to hear which is more effective in minimizing/eliminating the bass boom."

It's not necessarily either/or; neither excludes the other.

Also, IF lowering the tuning frequency of the port by reducing its cross-sectional area (as described a few posts up) actually works, I think that approach holds out more promise than port-stuffing because it is less likely to have a downside.

Duke

Good morning from Paris.

I'm still not very clear about the what the "mechanical grounding" tweaks are. Can anyone give product examples for those and to the "absorbing" ones?

I'm also not 100% sure I understand the way the wood boards have to be inserted into the bass port. Can you clarify?
Does it matter which wood to use and what the thickness of the board should be?

Re Tommy, I've been in touch with him now for about 8 months and he usually does not provide many suggestions.

Regards.

Duke,
If one product`s purpose is to "absorb" or hinder vibrantion/resonance(attempting to isolate), this is different than "mechanical grounding"(MG). With MG there`s no attempt to absorb, rather you allow the vibration/resonance a rapid and complete exit channel to "gound" this energy into the floor.One seems opposite from the other.An example of the MG approach is the Star Sound system brass points and stands.
Regards,