marble enclosures?

tmblack · 22nd February 2005, 06:37 PM

Anyone like Susan Parker's marble sphere speakers?
How much does markble cost and where can one buy it?

Tom

hermanv · 22nd February 2005, 07:27 PM

In my system I had a vibration feedback problem. Marble shelf didn't help sounded just like glass. Hardwood helped, isolators helped. Isolators on Marble didn't work either.

It would seem that a speaker housing should be non resonant or accoustically dead, not just heavy. The Marble I had (a slab) would ring if struck by an object

. Sandstone - now that might be OK

tmblack · 22nd February 2005, 07:49 PM

How about thick aluminum or concrete enclosures?

Is wood still the best for DIY?

Tom

454Casull · 22nd February 2005, 08:42 PM

Wood is cheaper than aluminum (I think) and much lighter than concrete. You can build an inert enclosure with wood, and that's all that really matters, right?

Jim85IROC · 22nd February 2005, 08:43 PM

Aluminum seems to work just fine in the Krell LAT speakers. Of course, whether or not there's an audible difference between the aluminum and some well braced MDF is another issue entirely.

RHosch · 22nd February 2005, 10:54 PM

Aluminum is stiffer than wood, but has less internal damping.

Many ways to skin the cat... I prefer the easiest and cheapest method that produces a "good" skinned cat.

botrytis · 22nd February 2005, 11:17 PM

There was a little speaker manufacturer from britian who lined his wooden speakers cabinets with either lead or steel. Doing that really made them inert!!

Dave

justinc · 23rd February 2005, 01:29 AM

what about taking 2 1/2 inch pieces of mdf and spreading a thin 1/4 layer of concrete between them to connect them? seems it woudl be pretty rigid.

kilowattski · 23rd February 2005, 02:14 AM

That wouldn't work either. The MDF would wick the water out of the concrete. The wet MDF would fall apart and the concrete would become brittle.

Variac · 23rd February 2005, 02:57 AM

some speaker companies do sandwich an elastomer adhesive between two layers of MDF

22nd February 2005, 06:37 PM	#1
tmblack diyAudio Member Join Date: Jan 2005 Location: UK	marble enclosures? Anyone like Susan Parker's marble sphere speakers? How much does markble cost and where can one buy it? Tom

22nd February 2005, 07:27 PM	#2
hermanv diyAudio Member Join Date: Apr 2004 Location: Northern California	In my system I had a vibration feedback problem. Marble shelf didn't help sounded just like glass. Hardwood helped, isolators helped. Isolators on Marble didn't work either. It would seem that a speaker housing should be non resonant or accoustically dead, not just heavy. The Marble I had (a slab) would ring if struck by an object. Sandstone - now that might be OK

23rd February 2005, 02:14 AM	#9
kilowattski diyAudio Member Join Date: Aug 2003 Location: Long Island, New York	That wouldn't work either. The MDF would wick the water out of the concrete. The wet MDF would fall apart and the concrete would become brittle. __________________ ----------------------------------------------- Kilowattski

23rd February 2005, 02:57 AM	#10
Variac diyAudio Editor Join Date: Dec 2001 Location: San Francisco, USA	some speaker companies do sandwich an elastomer adhesive between two layers of MDF __________________ Burning Amp Festival Sunday, October 28th, 2012 in S.F. We need Volunteers & sign-up's for what you're bringing!

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22nd February 2005, 07:49 PM	#3
tmblack diyAudio Member Join Date: Jan 2005 Location: UK	How about thick aluminum or concrete enclosures? Is wood still the best for DIY? Tom

22nd February 2005, 08:42 PM	#4
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	Wood is cheaper than aluminum (I think) and much lighter than concrete. You can build an inert enclosure with wood, and that's all that really matters, right?

22nd February 2005, 08:43 PM	#5
Jim85IROC diyAudio Member Join Date: Dec 2003 Location: Stamford VT	Aluminum seems to work just fine in the Krell LAT speakers. Of course, whether or not there's an audible difference between the aluminum and some well braced MDF is another issue entirely.

22nd February 2005, 10:54 PM	#6
RHosch diyAudio Member Join Date: Sep 2003 Location: SouthEast	Aluminum is stiffer than wood, but has less internal damping. Many ways to skin the cat... I prefer the easiest and cheapest method that produces a "good" skinned cat.

22nd February 2005, 11:17 PM	#7
botrytis diyAudio Member Join Date: Apr 2004 Location: Midwest	There was a little speaker manufacturer from britian who lined his wooden speakers cabinets with either lead or steel. Doing that really made them inert!! Dave

23rd February 2005, 01:29 AM	#8
justinc diyAudio Member Join Date: Jan 2005 Location: boston	what about taking 2 1/2 inch pieces of mdf and spreading a thin 1/4 layer of concrete between them to connect them? seems it woudl be pretty rigid.

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