design of anechoic cabinet - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 21st March 2003, 08:29 AM   #1
diyAudio Member
Join Date: Feb 2002
Location: Germany
Question design of anechoic cabinet

I am building a sealed enclosure for a Neo8 line array and want to make sure there is no back reflection which might travel through the thin membrane.

I usually line my enclosures with 5 mm wood felt (the green stuff that goes underneath floor tyles), stuff 2/3 of the enclosure with rock wool (higher packing density in the rear), with the fibers oriented towards the speaker to provide more flow resisatance. Then I cover this with one layer of wood felt both to keep the fibers where they are and to provide additional flow resistance where velocity is high. The last third right behind the driver is empty because want the driver to braethe freely.

I wonder if I can improve on this, e.g. one or several kinds of foam. I gather rock wool works through flow resistance. How does foam work? Also flow resistance? Or just plain vibrating mass that absorbs because of internal friction? Does it absorbe more or less than rock wool?
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cabinet design jwhit67 Multi-Way 4 14th February 2008 03:46 PM
DIY anechoic chamber! Snickers-is Multi-Way 33 13th March 2005 07:30 PM
Subwoofers, Anechoic FR, and Room Gain BAM Subwoofers 10 22nd October 2004 02:29 AM
anechoic jig speekergeek Multi-Way 9 15th December 2003 09:10 PM
Need an anechoic Freq Response Test System Marcus Everything Else 2 14th March 2002 11:55 PM

New To Site? Need Help?

All times are GMT. The time now is 05:31 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2