Lenco Heaven
November 13, 2024, 02:01:56 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Hard rock speakers  (Read 172 times)
Fidel Costar
Member
***
Offline Offline

Location: Brussels, Belgium
Posts: 388



« on: November 10, 2024, 12:55:31 AM »

I would like to relaunch a subject sometimes mentioned in the past but rarely explored in depth: stone cabinet speakers. The idea came to me to talk to you about it while reading this article:

https://the-ear.net/review-hardware/fischer-and-fischer-sn70-hard-speakers/

These little German speakers aren't exactly new, but they had fallen off my radar a bit. Their particularity is that their “box” is not made of MDF or Finnish birch, but of schiste (in French). Slate, if you prefer, although it's not quite the same thing. It seems that schiste has a "laminated" structure, unlike slate. I'll let the mineralogists nitpick on the subject.

Subject with which I still have a certain familiarity, since the plinth of one of my Lenco turntables is made of schiste (from the Ardennes, that's telling you...). But the material of Lencos plinths is a subject that has been debated on Lenco Heaven for a long time.

For loudspeakers, it is rarer. I'll let you appreciate the article, highlighting this passage: "With the price of more orthodox cabinet materials such as MDF and ply rising so much recently, other materials such as concrete and slate are almost comparable in cost. Just a few decades ago, the cabinet was the cheapest part of a loudspeaker, today it is the most expensive, meaning that it is become cost effective cost effective to make a cabinet from superior materials such as carbon fiber or slate".
Logged

Christian

Circulez, y a rien à boire.
KariFS
Member
***
Offline Offline

Age: 53
Location: Finland
Posts: 550


« Reply #1 on: November 10, 2024, 10:01:40 AM »

In the early ’90s, a Finnish company Active Stone made at least two models using soapstone for cabinet material. The price kept them rare. Not a lot of info about them on the internet, but they pop up for sale every now and then.

The smaller model used SEAS P17 and Dynaudio drivers

https://hifidealer.net/tuote/avalanche-s-17-2/

The larger one is active (price when new in early ’90s 28k DEM a pair):

https://www.diyaudio.com/community/threads/avalanche-as1-modernization.321711/

There was also monoblock amps available:

https://www.classicaudio.fi/product/avanlanche-a10-monopaatteet/

These didn’t become a commercial success, price and lack of marketing, plus the economic downturn in Finland at the time got them.

Soapstone is one of the most dense and about the oldest stone materials out there, formed at the time when Earth began to get solid. It has some unique damping properties, and is relatively easy to cut. Would make a good plinth material, looks good when polished, can be oiled or varnished (like the equipment above) to bring out the texture.






Logged

Kari
jestocost
Member
*
Offline Offline

Posts: 8


« Reply #2 on: November 10, 2024, 12:14:10 PM »

Rega are producing a less expensive alternative to conventional cabinet materials, the Aya.
Glass reinforced cement.

https://www.rega.co.uk/products/aya-loudspeakers

 
Logged
niclaspa
Member
****
Offline Offline

Location: Stockholm, Sweden
Posts: 2,415



« Reply #3 on: November 10, 2024, 12:55:43 PM »

I remember ads for marble speakers in the Swedish hifi magazines from the 70s:

Logged

Niclas

Ernst ist das Leben, heiter ist die Kunst
pde2000
Member
*****
Offline Offline

Age: 55
Location: upminster
Posts: 2,770


GB


« Reply #4 on: November 10, 2024, 01:18:18 PM »

There was an advert for concrete speaker enclosures many years ago that showed a mock up of a cello (in expanded polystyrene) to suggest that speakers should not be made of the same materials as instruments. 

Our D&T teacher at school had a side hussle in concrete enclosures and would walk around the DT block at lunch time pushing a mixer that was rotated by the wheels. 

When I worked with a teacher who had designed for Mordaunt Short and Cannon he reckoned the cabinet was always the most expensive part of a speaker - fabrication cost more than materials.  The drive units were bought in bulk from a couple of manufacturers back then.

Then of course you've got Gilbert Briggs corner horn design using bricks and cement.
Logged

Paul    in the ning nang nong, where the cows go bong, and the teapots jibber jabber joo.
ropie
Administrator
Member
*
Offline Offline

Posts: 12,352



WWW
« Reply #5 on: November 10, 2024, 07:54:25 PM »

I'm going to go out on a limb and say that I can imagine the sonic benefit of having a stone or concrete speaker enclosure is easily outweighed by cost, weight and ease-of-getting-completely-smashed-during-shipping considerations. Unlike a stone (or similar) record player plinth which can be a relatively small sturdy solid lump, a stone speaker enclosure has to be a hollow box which is just very difficult to make strong enough to withstand anything more than a minor bump, and stands a good chance of collapsing under its own weight.
Logged
stratokaster83
Member
****
Offline Offline

Age: 41
Location: Dublin, Ireland
Posts: 2,443

When I see mommy, I feel like a mummy


« Reply #6 on: November 10, 2024, 08:34:24 PM »

I'm going to go out on a limb and say that I can imagine the sonic benefit of having a stone or concrete speaker enclosure is easily outweighed by cost, weight and ease-of-getting-completely-smashed-during-shipping considerations. Unlike a stone (or similar) record player plinth which can be a relatively small sturdy solid lump, a stone speaker enclosure has to be a hollow box which is just very difficult to make strong enough to withstand anything more than a minor bump, and stands a good chance of collapsing under its own weight.

All valid points, but when was the last time when true audiophiles were stopped by the common sense considerations?  laugh
Logged

He had a big adventure amidst the grass.
Fresh air at last.
reza
Member
***
Offline Offline

Location: Dorset UK
Posts: 368


« Reply #7 on: November 10, 2024, 08:36:01 PM »

coincidentally these have come up for sale 10 miles from me

https://www.facebook.com/marketplace/item/525946003670240/

https://www.facebook.com/marketplace/item/3413750378926347 
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines

2009-2024 LencoHeaven

Page created in 0.089 seconds with 18 queries.