chrisn
pfm Member
Put an new main driver in one of my old SBL mid boxes. Expensive from Simon Hamnett but there you go I'm happy.
The damping foam was dust. Fortunately one of the speakers had a sheet good enough for a copy template.
I ordered some ready made from a dodgy Chinese site for 50$, fortunately Paypal refunded me.
Guy at Puresound sells them too and is reputable and responsive but I had already decided to diy.
I bought some 1/2 inch acoustic foam, with careful tessalation one sheet does twelve rhomboids, you need three rhomboids per box.
They fit in as in the pictures tucked behind the top metal plate and pushed in to leave the diffuser at the bottom clear.
Hylomar Blue off ebay to seal, torque up bolts to the suggested Nm and there you go.
The usual faff sealing and setting up.
Sound great, but better, don't know.
https://www.dropbox.com/s/mungsjsvxv50yh6/P1010294.JPG?dl=0
https://www.dropbox.com/s/5o3322fqhhstrx1/P1010293.JPG?dl=0
https://www.dropbox.com/s/y30m4vhvos11hts/P1010291.JPG?dl=0
https://www.dropbox.com/s/bmtw65uh038jbfn/P1010290.JPG?dl=0
The damping foam was dust. Fortunately one of the speakers had a sheet good enough for a copy template.
I ordered some ready made from a dodgy Chinese site for 50$, fortunately Paypal refunded me.
Guy at Puresound sells them too and is reputable and responsive but I had already decided to diy.
I bought some 1/2 inch acoustic foam, with careful tessalation one sheet does twelve rhomboids, you need three rhomboids per box.
They fit in as in the pictures tucked behind the top metal plate and pushed in to leave the diffuser at the bottom clear.
Hylomar Blue off ebay to seal, torque up bolts to the suggested Nm and there you go.
The usual faff sealing and setting up.
Sound great, but better, don't know.
https://www.dropbox.com/s/mungsjsvxv50yh6/P1010294.JPG?dl=0
https://www.dropbox.com/s/5o3322fqhhstrx1/P1010293.JPG?dl=0
https://www.dropbox.com/s/y30m4vhvos11hts/P1010291.JPG?dl=0
https://www.dropbox.com/s/bmtw65uh038jbfn/P1010290.JPG?dl=0