Would it be a good idea to put Dynamat Extreme inside the sub box, what would happen? does it make a difference?
I was also wondering, which way i should put the subs, magnet inside box or outside (would it be a good idea to have dynamat inside or will it mess up subs), and which way is it better to face the sub box towards the back seat or towards the door of the cargo area?
Thanks,
APitBullTUSFLAG
Replies (7)
uochronos on 12/9/2003 19:32:05
As far as dynamat extreme in a box i have never seen this done but i think it would defiantly have an interesting affect although it may also absorb alot of sound waves.... maybe someone else here has tried it.
as far as magnet in box or out i would suggest inside just because do you really want a magnet sticking out and collecting all kinds of debris? it looks pretty cool in some instances and it doesnt seem like there would be alot of stuff collecting on them but with a magnet that big you are going to end up with some stuff on them... and if you have ever tryed to take for instance metal shavings off a big magnet well its a chore to say the least:)
cplkittle on 12/10/2003 09:42:02
I have never heard of using dynamat inside a box either. Dynamat absorbs sound, and does it very well. Inside a speaker box, there are some sounds that you want to absorb, but not all sound. The professionals use fiberglass or polyfill in boxes for a reason... this is what they know works. It is all about personal taste though. I would try it, covering the entire interior of the box, then removing it a little at a time and testing it at each phase of removal. I would guess that just covering the very back of the box would be ideal, but I haven't tried it.
ttocs on 12/10/2003 10:30:29
"Dynamat absorbs sound"----how come the advertise it makes your system louder?
Adding damping to wood seems a bit redundent to me. I don't think you are going to make the wood any more dead....
cplkittle on 12/10/2003 16:19:08
Q: What is Dynamat?
A: Dynamat is a thin, flexible, easy to cut and mold sheet that actually stops noise causing resonance and vibration, by using visco-elastic qualities that promote vibro-acoustic energy conversion. In short, that means noise becomes silent energy.
Dynamat seals the vehicle by insulating it and cutting out distortion caused by vibration and vehicle panel expansion, not reflection.
http://www.dynamat.com/
it's not really dampening the wood. MDF has a very hard slick finish that does reflect alot of sound (backwaves) The density does absorb some vibrations, but not all of them. Filler or dampening material reduces backwaves and therefore decreases distortion.
ttocs on 12/12/2003 02:55:55
somebodys been studying..........
What he said...
cplkittle on 12/12/2003 09:29:05
I am about to take an installer job, don't want to go in there looking like an idiot. and I can be a nerd sometimes ;)
Tray on 12/12/2003 12:29:57
It actually does very little to put dynamat inside a box. From the technical documentation, it seems that it would increase the output, but I've tried it with/without in the same box, and couldn't tell the difference with my ears, nor on the SPL meter.
I would say for the cost, it is very non-economical and will not gain you much, if anything. If you are really looking to do something to the inside of your box, try spraying some of the ruberized undercoating in it. It's only around $3 a can, and will have same effect of dynamatting it.
I was also wondering, which way i should put the subs, magnet inside box or outside (would it be a good idea to have dynamat inside or will it mess up subs), and which way is it better to face the sub box towards the back seat or towards the door of the cargo area?
Thanks,
APitBullTUSFLAG
Replies (7)
uochronos on 12/9/2003 19:32:05
As far as dynamat extreme in a box i have never seen this done but i think it would defiantly have an interesting affect although it may also absorb alot of sound waves.... maybe someone else here has tried it.
as far as magnet in box or out i would suggest inside just because do you really want a magnet sticking out and collecting all kinds of debris? it looks pretty cool in some instances and it doesnt seem like there would be alot of stuff collecting on them but with a magnet that big you are going to end up with some stuff on them... and if you have ever tryed to take for instance metal shavings off a big magnet well its a chore to say the least:)
cplkittle on 12/10/2003 09:42:02
I have never heard of using dynamat inside a box either. Dynamat absorbs sound, and does it very well. Inside a speaker box, there are some sounds that you want to absorb, but not all sound. The professionals use fiberglass or polyfill in boxes for a reason... this is what they know works. It is all about personal taste though. I would try it, covering the entire interior of the box, then removing it a little at a time and testing it at each phase of removal. I would guess that just covering the very back of the box would be ideal, but I haven't tried it.
ttocs on 12/10/2003 10:30:29
"Dynamat absorbs sound"----how come the advertise it makes your system louder?
Adding damping to wood seems a bit redundent to me. I don't think you are going to make the wood any more dead....
cplkittle on 12/10/2003 16:19:08
Q: What is Dynamat?
A: Dynamat is a thin, flexible, easy to cut and mold sheet that actually stops noise causing resonance and vibration, by using visco-elastic qualities that promote vibro-acoustic energy conversion. In short, that means noise becomes silent energy.
Dynamat seals the vehicle by insulating it and cutting out distortion caused by vibration and vehicle panel expansion, not reflection.
http://www.dynamat.com/
it's not really dampening the wood. MDF has a very hard slick finish that does reflect alot of sound (backwaves) The density does absorb some vibrations, but not all of them. Filler or dampening material reduces backwaves and therefore decreases distortion.
ttocs on 12/12/2003 02:55:55
somebodys been studying..........
What he said...
cplkittle on 12/12/2003 09:29:05
I am about to take an installer job, don't want to go in there looking like an idiot. and I can be a nerd sometimes ;)
Tray on 12/12/2003 12:29:57
It actually does very little to put dynamat inside a box. From the technical documentation, it seems that it would increase the output, but I've tried it with/without in the same box, and couldn't tell the difference with my ears, nor on the SPL meter.
I would say for the cost, it is very non-economical and will not gain you much, if anything. If you are really looking to do something to the inside of your box, try spraying some of the ruberized undercoating in it. It's only around $3 a can, and will have same effect of dynamatting it.
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