Tuning a back loaded horn


What is the best material to use to tune a back loaded horn?

After doing some research I saw poly-fil is widely recommended for TL enclosures. Would poly-fil work for a back loaded horn also?

Thanks
Paul
pauly

Showing 3 responses by rodman99999

Stuff the area behind the woofer tightly, and progressively looser towards the vent. The object being to convert acoustic energy to thermal and reduce peaks/nulls in the cabinet response. In other words: Add 1/2lb/ft3 of fiberfil to the coupling volume(area directly behind the woofer), and reduce that to 1/8lb/ft3 of
fiberfil to the first one third of the horn’s length.
PS: Polyester is nice because you don't have to worry about moths and their larva.