Location: cheltenham
Posts: 746
I'm matt.
Petroleum based.
The other half will love that.
They will instantaneously become garden speakers!
JBL L26.
I am upgrading to the Gravesen crossovers and replacing the internal damping as per his recommendations.
Jantzen 8mm felt, with jantzen polyester accoustilux on top.
All ordered....just can't get the glue he recommends in the uk.
Though he does recommend a bostik product.
Location: Mildenhall, Suffolk
Posts: 380
I'm John.
I've had a look at the site your taking instruction from.
Are you going to the extent of the additional internal bracing shown in the 3 way version ?
The additional bracing will have a positive effect on the cabinet, and the removable front panel will aid any further exercises in the use of damping.
As the drivers in use should be run in, they will remain consistent in their presentation,this leaves scope to attenuate the speakers with use of your damping material to obtain your preferred end product.
Location: Canaries
Posts: 193
When I built my WD25t speakers I used Arboseal GZ tape, as recommended by Peter Comeau in his kits, over all the inner faces of all panels and braces erc. Tedious but worth it I think, my boxes are extremely inert. My knuckles bear witness. I think it’s butyl rubber and self sticking by its nature, none of it has ever come unstuck..
Hum.
So i felted the internal panels with 8mm felt.
But the polyester damping that arrived is only 10 to 15mm thick.
I was expecting 30mm.
Is 10 to 15mm going to be ok?
Not much different to the fibreglass original material i took out.