Anyone Damp the insides of your Speaker Cabinets?

Ptss, would you please start the thread? I start a new thread every other day, and don't want to be labeled "that guy".

In all honesty, this is the only site I've ever participated in, in any way, so its a learning experience all the way around for me. I've said a bunch of things I regret (it's on here forever, for all to see...) and a bunch of things I wish I never said, lol.

I agree though, time to start a new thread. Damping (huh, huh, notice I didn't say dampening??) has run its course... Black hole, maybe some plasticide on the drivers, etc.

I think damping is more of a way to fine tune. A strong, sturdy enclosure that is braced well should be step one... or steps 1-10!

Ported has alot to do with as well. Most ported JBL I have had just had an inch or 2  on all 6 pannels. All sealed boxes were full of foam or fibeglass or polly. Sealed Celestion for example uses foam and stuffs the box other than if there is a passive radiator. You need the airflow between the woofer and the radiator for it to work properly. 

I diy’d my speakers-bass reflex and a front loaded horn.  Generally, with a ported design I line the walls with .5” wool felt pad and avoid stuffing the enclosure.  A sealed design usually utilizes stuffing.  Transmission line designs use a very specific amount of stuffing based both on the length of the line and the density of the stuffing.  In all cases, bracing is necessary to break up cabinet resonance.  As mentioned in another post, some speakers utilize cabinet resonance as an integral part of the design.   I think Viking Acoustics does this with their Berlin-R. 

Interesting that some say they use resonance as part of the design. I seem to recall comments elsewhere these types of speaker builders used real wood instead of mdf. I’d like to see the way they estimate a standard for the vibration factor. Anyone who does a bit of woodworking can tell you that no two pieces of wood are the same. The density and hardness can change along just a few feet in a single piece! I prefer the efforts of those who work with materials that can provide a better consistency: and the efforts of those like Rockport where crossovers are hand tuned to bring the output of the speaker to spec.