I would like information on the use of the damping material. I know that in a closed box, filling it up all the apparent volume increases slightly. but in the case of a bass reflex, covering the walls with for example 1 or 2 cm of felt and then polyester (as troelsgravesen does) what happens? the volume of the cash register increases, decreases or is it irrelevant?
since my cabinet must be about 5 liters, making a mistake even a little can be significant ... thanks!
since my cabinet must be about 5 liters, making a mistake even a little can be significant ... thanks!
with 1-2 cm felt and just some polyester on the walls the apparent volume of the cash register loudspeaker box (italian "cassa" 😊) will just vary ever so slightly.
however, the amount of damping material will strongly influence the level of bassreflex port output and reflections/resonances of higher frequencies.
filling the whole box with damping material will result in no or very little output from the port.
however, the amount of damping material will strongly influence the level of bassreflex port output and reflections/resonances of higher frequencies.
filling the whole box with damping material will result in no or very little output from the port.
The Italian "cassa"...lol 🤣 great, yes i'm italian!
Thank you...
don't you think that in such a small case the damping material will have to be little otherwise you can "suffocate" the reflex port?
Thank you...
don't you think that in such a small case the damping material will have to be little otherwise you can "suffocate" the reflex port?
For a bass reflex enclosure, it is often recommended to line the back wall, just one side wall and just one of the top or bottom walls.
Lining a reflex enclosure has negligible effect on enclosure volume as the polyester is transparent to bass frequencies and only absorbs the higher frequencies.
Lining a reflex enclosure has negligible effect on enclosure volume as the polyester is transparent to bass frequencies and only absorbs the higher frequencies.
Lining only the walls of a reflex enclosure will ensure you do not suffocate the reflex port action.