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rick_21_69 
Copper - Posts: 53
Copper spacespace
Joined: December 30, 2002
Location: Canada
Posted: April 21, 2003 at 8:40 PM / IP Logged  
when making boxes or capping speakers off in factory locations( with mdf) other then subs......(highs) should any thing be put in the box to help response such as insulation or plastic?
wrencher_25 
Copper - Posts: 101
Copper spacespace
Joined: March 23, 2003
Location: Canada
Posted: April 22, 2003 at 1:33 AM / IP Logged  
Dacron filler is used in subwoofer applications, it helps take out some of the high freq. I believe. It looks like cotton type stuff but is very itchy if you ever come into contact with it. Try that.
Andrew Weitzel
MECP First Class Installer
Velocity Motors 
Moderator - Posts: 12,488
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: April 22, 2003 at 2:00 AM / IP Logged  
Try to steer away from making your sub enclosure too square or rectangular. You will get resonating frequencies from the box and it will not sound good. Dacron filler is like pink fiberglass insulation and should only be used if you have an enclosure that you made too small. The filler makes the subwoofer think that the enclosure is 20 % larger than it really is smoothing out the sound, hence giving the effect of the removal of the higher frequency. If you put in too much though you get a boomy sound which isn't good either. Test it out with some in the enclosure ( if required ) but if you build the enclosure properly, you won't need any.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

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