Spectra Dynamics Deflex panels versus Wool and others?

[Fanuc]

Hello,

I have heard of the Spectra Dynamics deflex material and was wondering what peoples experiences are of it compared to other types?

Have heard claims of improved dynamics/clarity etc in marketing brochures. One thing that bothers me with this matieral is that one marketeer said the the deflex panels do not absorb the sound like fibre wool and other stuff.

If so how does it control standing waves in a loudspeaker cabinet etc ?

Or maybe the marketeer was saying it absorbs and distributes sound differently to wool and others? - but due to ignorance stated something that is nonsense - it does not absorb sound!

Unless I am missing something?

Any experience with deflex panels would be appreciatted especially compared with other materials!

Regards

Kevin

[pinkmouse]

In my experience, Deflex does absolutely nothing that much cheaper bitumen damping pads don't.

[sdclc126]

In my experience, Deflex panels are very difficult to attach to cabinet walls - they don't like adhesives and tend to peel off with time. They also like to curl, which just adds to the adhering and peeling problems.

Not worth bothering with.

[sreten]

Hi,

Deflex panels do not do what they say it does. Waste of money.

/sreten.

[mazdapowered]

Managed to stick some deflex panels around 10 years ago and they are still stuck fast. It appears that the 'rubber' naturally leaches some oily substance that prevents it from sticking, so I gave the surface of deflex panel a really good scrub with normal washing up liquid to remove it, then dry and stick ASAP, if left it tends to become oily again. Plus the edges tend to peel easy, so once stuck it’s a good idea to go around the edges and make sure they have no opportunity to lift.

I fitted mine inside a sub cab and yes they did make a difference, but the hassle in trying to glue them in outweighed their benefit IMHO. The only thing I’ve used them for recently is the back of a magnet on a mid driver (recommended by someone on this forum) and that did improve clarity v.slightly. I did leave the wadding inside the cab, as I couldn’t face the hassle of trying to glue deflex panels inside a small enclosure.

[mazdapowered]

Oh, yeah. I meant go around the edges with more/plenty of glue, to make sure the edges don't lift.