Re: Room treatments--which is better, pyramid foam or wedge foam?

Posted by Jon Risch (B) on December 19, 2006 at 20:39:29

In Reply to: Room treatments--which is better, pyramid foam or wedge foam? posted by hartwerger on December 19, 2006 at 09:43:51:

Cheap foam can absorb specific frequencies a lot more than others, leaving the remianing sound in the room tonally skewed. This is in aditioon to any braodband absorption going on, and the whole issue of too bright vs. too dull.

BTW, the fact that you have a bass null means you DO need some bass trapping, often, people are surprised at the fact that after adding bass traps, the room sound like it has MORE bass, and it is a more tuneful and dynamic bass, with definition and punch. Most bass freaks are NOT dispappopinted when ading traps to a room.

Also, adding bass traps, primarily in the corners, does not necessarily end up witnh the room dull, but rather, as you have discovered, with better clarity and less harshness.

You could DIY some Corner Tunes, Do a search for the Corner Tune product from Michael Greene, once you see a picture, it becomes clear that sewing up a set of four is not a big deal. Basically, it is a triangle of fiberglass, covered with some sort of cloth, whether it is burlap, speaker grille cloth, or one of the expensive acoustic grade cloths from the likes of Acoustone or Guilford. Some folks like to use a layer of polyester batting over the fiberglass, this can help contain any glass fibers that might slip through the cloth covering. For best results, use the 6 or 6 1/2" thick fiberglass. One can also use JUST polyester batting, but this costs more than fiberglass, and you have to use several layers to get any thickness.

For inexpensive DIY bass trap info, See:
the original post where I reveal the latest Super Quick & Dirty easy bass traps recipe:
http://www.audioasylum.com/audio/tweaks/messages/15737.html
and petew's post where he goes into detail on what he did.
http://www.AudioAsylum.com/audio/general/messages/70817.html

All my DIY acosutics info is at:
http://www.geocities.com/jonrisch/a.htm

Jon Risch

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Follow Ups Full Thread

Topic - Room treatments--which is better, pyramid foam or wedge foam? - hartwerger 09:43:51 12/19/06 (10)

Re: Room treatments--which is better, pyramid foam or wedge foam? - Rob Thomas 17:53:26 12/20/06 (0)

Re: Room treatments--which is better, pyramid foam or wedge foam? - Jon Risch 20:39:29 12/19/06 (1)

Re: Room treatments--which is better, pyramid foam or wedge foam? - JB 08:45:04 12/20/06 (0)

Re: Room treatments--which is better, pyramid foam or wedge foam? - Ethan Winer 12:48:26 12/19/06 (0)

Try Eighth Nerve or Room Tunes... - mattcecil1@yahoo.com 11:57:12 12/19/06 (1)

Re: Try Eighth Nerve or Room Tunes... - clio09 04:35:59 12/20/06 (0)

Most foams sound too dead, spend for the good stuff and enjoy the results - tonemaniac 10:34:05 12/19/06 (3)

ToneM... Are the cylinders hollow or solid? - gstew 20:42:56 12/19/06 (2)

They should be solid, closed cell (like a floatation device) - tonemaniac 10:36:11 12/20/06 (1)

PS... I meant 3-4 pieces of RPG per wall, for 6' to 8' height - tonemaniac 10:57:28 12/20/06 (0)

Follow Ups

Re: Room treatments--which is better, pyramid foam or wedge foam? - Jon Risch 20:39:29 12/19/06 (1)

Re: Room treatments--which is better, pyramid foam or wedge foam? - JB 08:45:04 12/20/06 (0)

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