Home Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

sonotube from home depot works well.

12" x 48" tall, now $9.32, only 44 at a store close to me

http://www.homedepot.com/p/SAKRETE-12-in-x-48-in-Tube-for-Concrete-200077374/100324386

Try 4 and see if you like the difference.

http://www.jdbsound.com/work/testroom.html

Talking into a quadratic diffusor sounds horrid, while a circle evenly disperses the sound (to me).

Works really well at 2 x diameter frequency (12" awesome above 2khz) and works somewhat down ro 500hz.

polycyndricals work too.

5:54 talking into quadratic.
9:40 you hear guitar by poly, real traps qrd, book case, wall, absorption.


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