Another Tweak question.
Posted by: Km on 12 January 2003
Hi Everyone,
I've been thinking about getting a granite slab to put under my speakers. I did a few reading here and found that most people go for Slate(Welsh) slabs. Is there any reason other than looks. I would have thought granite should be much better suited for this kind of task?
Best Regards,
Km
I've been thinking about getting a granite slab to put under my speakers. I did a few reading here and found that most people go for Slate(Welsh) slabs. Is there any reason other than looks. I would have thought granite should be much better suited for this kind of task?
Best Regards,
Km
Posted on: 13 January 2003 by Km
I've ordered a couple of Granite slabs from Stone Merchants at £50 each. Measurements are 430(L)x370(W)x300(D). I know a friend of mine paid £250 for Welsh Slate Slabs at Hifi store(The name escapes me),so mine seems like decent deal.
Posted on: 17 January 2003 by Greg Beatty
Have readers here had good experiences with stone slabs under speakers when a suspended (2nd floor) floor is in play? Don't think I can use 14 foot screws to go all the way to the basement concrete 
- GregB
Insert Witty Signature Line Here
- GregB
Insert Witty Signature Line Here
Posted on: 17 January 2003 by Km
Hi,
Install my granite slab under my speaker stand today and without any lie,improvement was phenomenal.There seems to be more Bass Extension and all the instruments seem more define.(sounds become tighter)
I suspect the reason might be that I had my speakers spiked on the floating wooden floor thus creating echo effect when playing music and now not only they are on thick granite(almost vibration free) and I also cut out carpet beneath the slabs.
(Just a thought Graham,putting your speakers spikes on top of metal ,I'm not sure this is a good idea?)
Granites were expensive sure concrete slabs will do the job just as well but I needed something that looks good as well.
Best Regards,
Km
Install my granite slab under my speaker stand today and without any lie,improvement was phenomenal.There seems to be more Bass Extension and all the instruments seem more define.(sounds become tighter)
I suspect the reason might be that I had my speakers spiked on the floating wooden floor thus creating echo effect when playing music and now not only they are on thick granite(almost vibration free) and I also cut out carpet beneath the slabs.
(Just a thought Graham,putting your speakers spikes on top of metal ,I'm not sure this is a good idea?)
Granites were expensive sure concrete slabs will do the job just as well but I needed something that looks good as well.
Best Regards,
Km
Posted on: 18 January 2003 by Rockingdoc
Keep your views on speaker supports coming please. My SBLs stand on very floaty suspended chipboard sheet flooring. Sound o.k. but I'm sure could do better. I dont really see how different types of high density stone would sound all that different from each other. So apart from the cosmetics, I would expect a composite paving slab to sound similar to exotic slate.
I was thinking of the m*n* stands, but would like to try before I buy.
malcolm
I was thinking of the m*n* stands, but would like to try before I buy.
malcolm
Posted on: 18 January 2003 by garyi
I was left cold from the granite tweak to be honest.
I too have a laminate floor and I like the sound the SBLs produce. The best way I have found for sound is to put the spikes direct to floor. Obviously going through to the concreate would be a better option (although not possible for me)
The granite I found made the top end really brittle and sucked bass away to never never land
I also tried spiking the granite, and putting the sbles on there, not much in the way of improvement.
At first ones thinks they have a lively sound, ultimatly though its fatiguing.
I think naim had it sussed when they designed the SBL (IMO) as such putting it on more stuff has not worked for me.
If anyone wants to collect these slabs they are welcome to them, they are thinnish mind.
I too have a laminate floor and I like the sound the SBLs produce. The best way I have found for sound is to put the spikes direct to floor. Obviously going through to the concreate would be a better option (although not possible for me)
The granite I found made the top end really brittle and sucked bass away to never never land
I also tried spiking the granite, and putting the sbles on there, not much in the way of improvement.
At first ones thinks they have a lively sound, ultimatly though its fatiguing.
I think naim had it sussed when they designed the SBL (IMO) as such putting it on more stuff has not worked for me.
If anyone wants to collect these slabs they are welcome to them, they are thinnish mind.
Posted on: 23 January 2003 by Lambros
Garyi
I would be interested in the granite to try under my Shahinian Arcs. How big are they?
Let me know if I can borrow them for a while.
Thanks
Regards
Lambros (lambros.kilaniotisNOSPAM@herbertsmith.com
PS Are you coming to NW London on Sat night?
I would be interested in the granite to try under my Shahinian Arcs. How big are they?
Let me know if I can borrow them for a while.
Thanks
Regards
Lambros (lambros.kilaniotisNOSPAM@herbertsmith.com
PS Are you coming to NW London on Sat night?
Posted on: 23 January 2003 by David C
Malcolm,
different types of rock and stone will all have a very different effect sonically. As you probably know there are three basic rock types, igneous, sedimentary and metamorphic. These groups identify the source of the rocks origin.
As such slate is a sedimentary rock and it is created in laminar sheets. Hence it is frissile and can de laminate cleanly in one spatial plane. As such the acoustic transmission of it is very different from granite which is igneous. Granite came into being in the same way that iron can be poured into a mould, it is a molten material that cools and hardens. As such is it more homogenous and has a consistent speed of sound in all axis.
I have never investigated the sonic difference of rocks from an audio perspective just from a rock mechanics / engineering perspective.
Add to this the different levels of porosity (significant in this case for the air volume contained in the material) and you should probably end up with a very different damping / resonance characteristic.
Regards
David
different types of rock and stone will all have a very different effect sonically. As you probably know there are three basic rock types, igneous, sedimentary and metamorphic. These groups identify the source of the rocks origin.
As such slate is a sedimentary rock and it is created in laminar sheets. Hence it is frissile and can de laminate cleanly in one spatial plane. As such the acoustic transmission of it is very different from granite which is igneous. Granite came into being in the same way that iron can be poured into a mould, it is a molten material that cools and hardens. As such is it more homogenous and has a consistent speed of sound in all axis.
I have never investigated the sonic difference of rocks from an audio perspective just from a rock mechanics / engineering perspective.
Add to this the different levels of porosity (significant in this case for the air volume contained in the material) and you should probably end up with a very different damping / resonance characteristic.
Regards
David