atc454
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rob, heading out to buy pillows now. is it possible to put too many in the box? too little? the build page guy used fiberglass insulation as we know, and it didnt look like too much. im wondering about the whole q value thing. the guy said the design had a target q of .65 which if i understand things is pretty good, but things can get bad if you get too low. thanksRobert_J said:Just shove the pillow in. The thin fabric helps keep the polyfil from going everywhere and has zero impact to the sound. Over at another forum guys were buying a half dozen pillows to stick in their monster subs.
1 pound of stuffing per cubic foot is the standard ratio. I like a final Qtc of .5. Yes, the Fs is a little high but the roll-off is much shallower and can dig deeper than a sub with a Qtc of .707.Mike Thomass said:rob, heading out to buy pillows now. is it possible to put too many in the box? too little? the build page guy used fiberglass insulation as we know, and it didnt look like too much. im wondering about the whole q value thing. the guy said the design had a target q of .65 which if i understand things is pretty good, but things can get bad if you get too low. thanks