New Fountek Ribbons - 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 5th January 2005, 01:28 PM   #1
rah is offline rah  Australia
diyAudio Member
 
Join Date: Dec 2003
Location: NSW
Post New Fountek Ribbons

For those that don't know, Fountek is now producing a new series of ribbons: Fountek NeoCD ribbon transducers. This new series appears to have the same chassis, but with a heavier & stronger enforced sandwich ribbon. The new ribbon can handle a little more power, and lower order crossovers. Data available at http://www.fountek.net/products.htm

Any opinions on this new series? Because madisound has discounted the current series, and is planning to stock the new series at the same price as the old.

I'm looking for a ribbon to go between 2 x PHL 1240s mids, in a MTM. Any ideas on which one I should get? I know that others have done something like this with Ravens and AC, and prefer the larger ribbons over the smaller ones. But this limits vertical response. I was thinking of using the JP2(larger) over the JP3(smaller), but now there's NeoCD2.0 & NeoCD3.0, would they really be worth it?
  Reply With Quote
Old 5th January 2005, 05:12 PM   #2
Variac is offline Variac  United States
diyAudio Editor
 
Variac's Avatar
 
Join Date: Dec 2001
Location: San Francisco, USA
The new ribbon is 18 mg as opposed to 11 mg in the old model.
Maybe they will continue to make both. I guess the question is whether the newer diaphram sounds as good
  Reply With Quote
Old 5th January 2005, 05:29 PM   #3
rah is offline rah  Australia
diyAudio Member
 
Join Date: Dec 2003
Location: NSW
Yes, it seems that Fountek might keep both, but from what madisound tells me - they want to clear out the old series (sell at discounted rate till stock runs out), and bring in the new. They're also looking at how difficult it is to replace & post out the new ribbons, if the new ribbons aren't as fragile as the old ones, then they plan to sell replacements. Presently you have to send the whole unit back to madisound for a new ribbon.

In any case, would the larger ribbon (JP2) be better than the smaller (JP3) with the PHL 1240 mids? I think larger ribbons tend to sound warmer, because of the improved lower-end response. In which case, I guess.. the NeoCD2.0 should be better, as it has much better response up to 1k.

Lastly, how do you get the same sensitivity using the same chassis/magnets, and a heavier ribbon? hmm...
  Reply With Quote
Old 5th January 2005, 09:54 PM   #4
diyAudio Member
 
LineSource's Avatar
 
Join Date: Sep 2003
Location: SiliconValley
Most “true” ribbons tweeters are built from 8-11 micron thick pure aluminum with corrugations that provide the suspension and dampening. This new Fountek ribbon appears to be constructed from a plastic base material with aluminum either sputtered on or glued on to create the 20 micron thick sandwich mentioned in the datasheet.


Based upon the increase in mass, this new ribbon will be 11/18 as efficient as the older version. It should be far more robust than the previous thin aluminum ribbons, but could have less high end extension, and will likely have a different sonic signature than the all aluminum ribbons.
  Reply With Quote
Old 6th January 2005, 04:20 PM   #5
rah is offline rah  Australia
diyAudio Member
 
Join Date: Dec 2003
Location: NSW
Yes, but the sensitivity remains the same. Mby they're using stronger magnets?
  Reply With Quote
Old 6th January 2005, 05:07 PM   #6
gl is offline gl  United States
diyAudio Member
 
Join Date: Dec 2003
Location: Sierra Foothills - California
However the gap flux is the same, which would imply that the magnet structure is unchanged. It appears as though there is an error here somewhere - either in the gap flux strength or ( more likely) the declared sensitivity.

Graeme
  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
Seas L22RN4X, CA21REX woofers, Fountek NeoCd3.0R Ribbons, W3-871, DA175 omarmipi Swap Meet 8 17th July 2006 11:17 PM
Fountek Ribbons Group Buy (Europe, but maybe not only Europe?) Carondimonio Group Buys 34 24th October 2004 09:10 PM
Fountek jp 2 ribbons... 1.5khz? npdang Multi-Way 2 15th October 2004 06:38 AM
Fountek Ribbons Group Buy Carondimonio Multi-Way 1 10th October 2004 10:11 PM


New To Site? Need Help?

All times are GMT. The time now is 06:57 PM.


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