Dynamat inside a sub box?
50 Watt CAFz'r
Joined: Nov 2004
Posts: 167
Originally posted by Trevor:
Wouldnt that take away from the volume of the box or would it be neglegable? I think i need to do that to my box.
Wouldnt that take away from the volume of the box or would it be neglegable? I think i need to do that to my box.
[ May 14, 2005, 01:54 AM: Message edited by: Punk0Rama_REXXX ]
50 Watt CAFz'r
Joined: Dec 2000
Posts: 241
Originally posted by loudtdi:
I bet there are people on this forum who will tell you that MDF is porous too. Let's not start that up again.
I bet there are people on this forum who will tell you that MDF is porous too. Let's not start that up again.
Now, the topic at hand. MDF is pretty dense stuff. The best and cheapest way I can think of to mass load it is to add more MDF in the form of a brace. If you want to make the box less flexible, a brace would do it as well (although you can cut up the brace to reduce weight).
I would think that a Deflex/Dynazorb type of pad would give you better results.
Juan
Originally posted by OldOneEye:
</font><blockquote>quote:</font><hr />Originally posted by loudtdi:
I bet there are people on this forum who will tell you that MDF is porous too. Let's not start that up again.
</font><blockquote>quote:</font><hr />Originally posted by loudtdi:
I bet there are people on this forum who will tell you that MDF is porous too. Let's not start that up again.
Now, the topic at hand. MDF is pretty dense stuff. The best and cheapest way I can think of to mass load it is to add more MDF in the form of a brace. If you want to make the box less flexible, a brace would do it as well (although you can cut up the brace to reduce weight).
I would think that a Deflex/Dynazorb type of pad would give you better results.
Juan </font>[/QUOTE]if they were two perfectly flat peices, then it was suction.
Guest
Posts: n/a
I agree, that test is BS, it proves nothing. If you truly want to test it you should have a tube under the MDF with a ball in it, and see how far up the tube the suction can pull the ball. Or if you want to truly test the porosity of the MDF please take me up on the Dereck Waller MDF porosity test. first I tie your hands behind your back, then I put a clothes pin on your nose. Next I CA glue a piece of MDF over your mouth with no air gaps. Then you die because you can't breathe thus disproving the less accurate 2 piece of MDF stuck together test.
Guest
Posts: n/a
Dereck and I have the same testing procedure I see [img]tongue.gif[/img]
I will have to agree though that the next time I install a vacuum cleaner in my car I will certainly try to seal up the wooden box I put it in. [img]graemlins/thumb.gif[/img]
I will have to agree though that the next time I install a vacuum cleaner in my car I will certainly try to seal up the wooden box I put it in. [img]graemlins/thumb.gif[/img]
