what benefits does it have? and what exactly does it do?i just built a sub box and someone suggested putting the insulation inside the box.
Pollyfil is a sound absorption, dampening fiber that will deepen bass, provide cleaner midrange, tone down any unwanted reverberation and improve the dynamic extension of any speaker system It also helps eliminate standing waves, which is something like an echo inside the boxThis will give you tighter and more accurate bassIt also helps to give a flatter frequency response to the overall sound, which is goodBesides this, it also helps reduce the vibration of the box, which results in less distortionThere is a big difference to the bass when you have an insulated box Damping also increases subwoofer efficiency by dissipating some energy that affects the sub, particularly the voice coilIt is advisable to put damping material inside a boxPillow polyfill and fiberglass insulation are common, though polyfill is a lot easier on your skinPolyfill also tricks a sub into thinking it is in a bigger boxMost sealed and vented enclosures require 1/2 lbof dampening material per cubic foot of internal enclosure spaceFor best results it is recommended to loosely fill the material throughout the enclosure.
