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fatgaz · 14th December 2006

Hi,

thanks for the replies. So the idea is just to shove some dense fiber glass sheets on the walls with a few inches gap behind ? Mainly because 'broadband absorption' like this is less likely to make the acoustics worse than more specific but ill thought out devices ?

I can see that these sheets will absorb low-mids and up ( i intend to have something similar on a couple of places to breakup areas of blank hard walls) , but I'm not sure that this will work that well with the low bass (40-160) frequencies ? doesn't the absorption drop off at low frequencies as these go near the wall ?

don't those bass tube traps work by having a cavity inside so that a pressure differential creates air velocity through the tube walls ? or would a solid cylinder of fiberglass work just as well ? (but be heavier !)

still a bit confused to be honest !

Doesn't ethan winner show these panel things described as bass traps that are sealed boxes with a plywood front membrane ?

cheers !

Gareth.

14th December 2006	#6
fatgaz Gear Head Join Date: Nov 2006 Location: old south wales Posts: 46 Thread Starter	yeah but no but yeah but.... Hi, thanks for the replies. So the idea is just to shove some dense fiber glass sheets on the walls with a few inches gap behind ? Mainly because 'broadband absorption' like this is less likely to make the acoustics worse than more specific but ill thought out devices ? I can see that these sheets will absorb low-mids and up ( i intend to have something similar on a couple of places to breakup areas of blank hard walls) , but I'm not sure that this will work that well with the low bass (40-160) frequencies ? doesn't the absorption drop off at low frequencies as these go near the wall ? don't those bass tube traps work by having a cavity inside so that a pressure differential creates air velocity through the tube walls ? or would a solid cylinder of fiberglass work just as well ? (but be heavier !) still a bit confused to be honest ! Doesn't ethan winner show these panel things described as bass traps that are sealed boxes with a plywood front membrane ? cheers ! Gareth.