Your certainly going for the mini traps!
I thought the pic you posted the other day was just an optical illusion or you had really big hands :mrgreen:IMG_1665.JPG
I think I'd really prefer panels similar to those used in movie theaters (generally 1" thick but covering a much larger surface area).
John - if I went this route, is there a particular product that you'd recommend? Owens Corning 703 seemed to be impossible to find (in Canada) when I looked earlier during my build.
Roxul (Canadian company) have a similar range to OC and it's cheaper also.
http://www.roxul.com/
Roxul (Canadian company) have a similar range to OC and it's cheaper also.
Yeah, I used Roxul's industrial grade product, RHT. I went with RHT80 (8.0 lbs/ft3). They of course also have RHT100 and RHT 120, (10 and 12 lbs/ft3 respectively), which would presumably be more rigid - have you used those before with good success at mid to high frequency absorption? I had the impression that they may be too dense for an effective wall panel?
check out roxul AFB it has a density of 2.8 pcf where as 703 has a density of 3 pcf.
I read here somewhere that about 5 pcf or 48 kg/m is ideal,
If your interested an unopened bag of the 23" wide Roxul comfort batt R14 has a density of about 5.5 pcf, you could put a couple bags in each corner for bass trapping see how it works.
I read here somewhere that about 5 pcf or 48 kg/m is ideal,
Actually, 3 pcf is 48 kg/m3! 5 pcf is 80 kg/m3.
Roxul comfort batt R14 has a density of about 5.5 pcf, you could put a couple bags in each corner for bass trapping see how it works.
That's REALLY dense! It's nearly 90 kg/m3. Probably not going too help much for bass trapping. Lower density is actually better for low frequency trapping.
Roxul comfort batt R14 has a density of about 5.5 pcf, you could put a couple bags in each corner for bass trapping see how it works.
That's REALLY dense! It's nearly 90 kg/m3. Probably not going too help much for bass trapping. Lower density is actually better for low frequency trapping.
oops, i was thinking 5 pcf was ideal just trying to remember numbers off the top of my head, an unopened bag is definitly not 5 pcf. I do remember i calculated it to be slightly denser than ideal, the bag weighs 41 lbs (18.6 kg) and measures
# Length: 47" (1194 mm)
# Width: 23" (584 mm)
# Thickness: 3½" (89 mm) X 8 batts = 28" (712mm)
(uncompressed height)
I forget what height the bag is compressed to but
somewhere around 18"-22"
lets say 20"(508mm)
V=.3542 m3
so approx density is 52.51kg/m3. But for some reason 55 kg/m3 is what i remember, but clearly my memory is questionable.
