Beryllium drivers on the cheap?? - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 14th August 2007, 11:55 PM   #1
NV&H is offline NV&H  United States
diyAudio Member
 
Join Date: Feb 2005
Location: Charlotte, North Carolina
Default Beryllium drivers on the cheap??

Check the link out below. Sonance is using Beryllium tweeters AND woofers in their top range!! Not sure if the price is each or per. Smokin deal if it's for the pair. Perhaps there are no enclosures, but being DIYers, we'd prefer to cannibalize and use them how we'd like anyway.

http://www.hifioverstock.biz/product...products_id=51

Anyone know anything about these Sonance drivers?
__________________
NV&H
  Reply With Quote
Old 15th August 2007, 09:47 AM   #2
sreten is offline sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
Hi,

They are priced per pair and are in wall speakers, they will have
a rear likely moulded cabinet. the crossover should be optimised
for in wall use and as such will not suit normal freespace use.

/sreten.
  Reply With Quote
Old 15th August 2007, 03:12 PM   #3
NV&H is offline NV&H  United States
diyAudio Member
 
Join Date: Feb 2005
Location: Charlotte, North Carolina
Per pair is a nice price even if you pull out the drivers and toss the rest.

Is there a cheaper way to obtain raw Beryllium diaphragm drivers?
__________________
NV&H
  Reply With Quote
Old 18th August 2007, 12:24 AM   #4
diyAudio Member
 
Robh3606's Avatar
 
Join Date: Nov 2002
Location: Destiny
I don't know. They don't look like beryllium more like aluminum. That's awfully cheap to be using beryllium. I would be careful.

Rob
  Reply With Quote
Old 18th August 2007, 03:58 AM   #5
tade is offline tade  United States
diyAudio Member
 
Join Date: Feb 2005
Location: Ralieigh nc
Send a message via AIM to tade
I bet that it's an alloy with beryllium in it if they are being at all honest. Beryllium as a desirable material should be used pure in my understanding.

So Cute!
http://www.jbl.com/home/technology3d...try=HA&Region=
  Reply With Quote
Old 18th August 2007, 12:40 PM   #6
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Its easy to throw prices like that, when nobody know nothing about any of the drivers
As mentioned, "berylium" is such a fine word, with otherwise no meaning
The important details such as magnet motor design is still unknown, and in reality there may be very little behind the cones
I have just seen a 6.5" AurumCantus at 50 USD, which might be much better
I think that price would be easy to match, no bargain as far as I can see
  Reply With Quote
Old 18th August 2007, 11:23 PM   #7
OzMikeH is offline OzMikeH  Australia
diyAudio Member
 
Join Date: Mar 2007
Beryllium oxide will give you cancer. I'm amazed they are using this for speakers, it's like using asbestos.

It may be an exotic material, but the design of the driver is far more important than the materials used. There are a lot of very good drivers out there with cones made from the same stuff you wipe your backside with. The marketing people prefer other materials are used, it makes their job easier.

These could still be great drivers, but you're paying a premium for an exotic material that may only be used for marketing reasons.
  Reply With Quote
Old 19th August 2007, 12:09 AM   #8
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
It can be extremely toxic during manufacturing. The fumes and dust are very toxic. I don't think it poses a danger as a finished sheet or foil. People that worked in old fluorescent lamp factories or in metallurgy making springs developed chronic lung disease and cancer.
As for use in speakers, it has its plus points. High rigidity, low mass, high dimensional stability, all much better than Alu or Ti. Yamaha NS1000M was famous for its Be domes, TAD uses it for many years and Focal made a fuss recently. Its well surpassed in its strong areas by synthetic diamond diaphragms though.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
WTB: 269-469 ("1$ Parts Express") drivers, or other really cheap FR drivers. Spasticteapot Swap Meet 1 5th November 2006 03:31 PM
Cheap 12" drivers cyberdemon1 Subwoofers 7 7th March 2006 02:29 PM
Cheap un-known car drivers Matttcattt Multi-Way 7 25th June 2003 07:14 AM
Can you identify these cheap drivers? seangoesbonk Multi-Way 12 23rd November 2002 02:21 AM
drivers for cheap Iron Byron Swap Meet 0 27th August 2002 05:39 PM


New To Site? Need Help?

All times are GMT. The time now is 07:59 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2