Bass box to 200 Hz – bother with CLD?

rick57 · 21st November 2004, 09:32 PM

I’m about to build two bass boxes, using Peerless XLS, to XO actively to PHL (which won't go below 200: a true mid)/ ribbon satellites.
If the Peerless were just subs, up to say 80 Hz, I would probably use 25 mm MDF, maybe with lead lining.

But to give best sound up to 200 Hz - the high end of bass – should I bother with constrained layer damping?

What would you recommend?

Thanks

Ron E · 21st November 2004, 09:48 PM

I would suggest that if they don't take a forklift to set in place, they are not true subwoofers. Why stop at 25mm? I am thinking that 1" slabs of Osmium (heavily braced, of course - pun intended) would be the cost-no-object solution, although you might have to register your loudspeakers as a strategic reserve for your nation if you decide to go that route.

rick57 · 21st November 2004, 10:35 PM

OK go full on thickness, but what about lining and/ or layers?

Thanks

21st November 2004, 09:32 PM	#1
rick57 diyAudio Member Join Date: Dec 2002 Location: dry ol Melbourne Australia	Bass box to 200 Hz – bother with CLD? I’m about to build two bass boxes, using Peerless XLS, to XO actively to PHL (which won't go below 200: a true mid)/ ribbon satellites. If the Peerless were just subs, up to say 80 Hz, I would probably use 25 mm MDF, maybe with lead lining. But to give best sound up to 200 Hz - the high end of bass – should I bother with constrained layer damping? What would you recommend? Thanks

21st November 2004, 09:48 PM	#2
Ron E diyAudio Member Join Date: Jun 2002 Location: USA, MN	I would suggest that if they don't take a forklift to set in place, they are not true subwoofers. Why stop at 25mm? I am thinking that 1" slabs of Osmium (heavily braced, of course - pun intended) would be the cost-no-object solution, although you might have to register your loudspeakers as a strategic reserve for your nation if you decide to go that route. __________________ Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan Science is a way of thinking much more than it is a body of knowledge. --Carl Sagan

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21st November 2004, 10:35 PM	#3
rick57 diyAudio Member Join Date: Dec 2002 Location: dry ol Melbourne Australia	OK go full on thickness, but what about lining and/ or layers? Thanks

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