By the time we get below 300hz the stuffing is basically useless.
Roofing felt speaker stuffing.
Thick felt of the kind that used to be laid under carpets was a popular choice in the early days of hifi.
Polyester fiber stuffing slows down sound waves inside the box making the subwoofer perform as if the box were bigger.
50 50 wool polyester blend pillow found at walmart 4 x 4 x 3 8 or thicker carpet rebond.
2 1 2 sheet rock screws.
The effectiveness of this approach diminishes as frequency is reduced.
Glass fibre insulation material was irritatingly used for much of the 60s while polyester or acrylic fibre similar to that found in cheap sleeping bags duvets or pillows gained popularity in the 70s either inserted loose or stapled.
Cup w binding posts madisound td cup.
At 11mm thick it is suitable for damping the walls of a speaker cabinet to change the resonant frequency and q it is also effective at reducing the back wave from the rear of your drivers.
6 heavy zip cord 12 gauge or heavier radio shack has heavy speaker wire which works well 1 pkg.
Description our heavy weight recycled wool felt is manufactured from 100 recycled fibres.
Use 1 to 1 1 2 pounds of stuffing per cubic foot of box volume.
In most regions it is better than the.
What s in the box.
Layers of 30 roofing felt that costs 0 17 per square foot thanks to dickason for mentioning this stuff.