opinions on the new VIFA dual conc. tweeter XT25 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 10th January 2002, 09:07 PM   #1
grataku is offline grataku  United States
diyAudio Member
Join Date: Dec 2000
Location: -
Default opinions on the new VIFA dual conc. tweeter XT25

Has anyone played around with this revolutionary-looking tweeter?
It's a 4 ohm nominal impedance.
  Reply With Quote
Old 10th January 2002, 11:14 PM   #2
Super is offline Super  United States
diyAudio Member
Join Date: May 2001
Location: Connecticut
Send a message via AIM to Super
Haven't played around with it personally, but its used in the Audio Physic Avanti III...
  Reply With Quote
Old 11th January 2002, 12:56 AM   #3
BAM is offline BAM
diyAudio Member
Join Date: Sep 2001
Location: Carmel, IN; West Lafayette, IN
Send a message via AIM to BAM
Default MTM

Maybe they have a 4-ohm impedance for MTM's so that the speaker will present an even 4-ohm load to a reciever or power amplifier.
The Dayton silk dome is more in my price range.
  Reply With Quote
Old 11th January 2002, 01:52 AM   #4
Will is offline Will  Malaysia
diyAudio Member
Join Date: Sep 2001
Location: Kuala Lumpur

Can you please attach a web link to the particular VIFA driver ? I'm quite interested to get a concentric driver myself. Thanks.

  Reply With Quote
Old 11th January 2002, 02:32 AM   #5
PJ is offline PJ
diyAudio Member
Join Date: Nov 2001
Location: Perth, Western Australia
For the Vifa:


And the new Scanspeak...this is seriously expensive, I'm heard around $US1000 each!


Wouldnt mind using that tweeter, together with the new revelator 6.5" midwoofer
  Reply With Quote
Old 16th January 2002, 02:59 PM   #6
hifi is offline hifi  Sweden
diyAudio Member
Join Date: Mar 2001
Location: sweden
It is in the same price category as the normal 9700...i will order some for evaluation shortly....

  Reply With Quote
Old 17th January 2002, 05:05 PM   #7
diyAudio Member
Join Date: Jan 2002
Location: Tyrone Ga. U.S.A.
Is this new Scanspeak tweeter available yet ,who from and how much?


  Reply With Quote
Old 14th February 2002, 02:22 AM   #8
ucla88 is offline ucla88  Tahiti
diyAudio Member
Join Date: Dec 2001
Location: rocklin, CA
just bumping this up to see if anyone has tried out this driver to see what they think.
  Reply With Quote
Old 19th March 2002, 09:59 PM   #9
Thomas is offline Thomas  Denmark
diyAudio Member
Thomas's Avatar
Join Date: May 2001
Location: Right here

The local vifa dealer in my town sells a "kit" including the XT25 and rest of the parts for a nice 2-way speaker. My dad bourght it and are in the process of building the cabinets. For what I can tell the crossover network suggested is quite complicated. It's a -24 dB containing three coils, two 68uF caps plus some more. I was by the store today asking for a datasheet on some other drivers and mentioned the XT25 crossover. He told me the complex network is "necessary to get it going"...

Later this week i will upgrade my own speakers (D27tg tweeter) with the XT25 and will be able to tell more at that time.

Btw. they cost 400 Dkr. (47US$) a piece.
  Reply With Quote
Old 19th March 2002, 10:23 PM   #10
diyAudio Member
kingdaddy's Avatar
Join Date: Mar 2002
Location: Fort Worth, Texas
Default Yea I've had a pair for several months now...

They are quite good on detail but they have a nasty resonate peak and are difficult to integrate with the mid’s, the low FS of 500hz suggests that it will work well in a MTM which I am using along with a pair of SS 8530-K00 Mid woofers and a Marchand Active 24db L-R crossover. Right now (actually tonight) I'm adding a conjugate network to the XT per the suggestion of Peter at Acoustic Reality (he has a lot of experience with this tweeter) to remove the resonate peak, a simple .1mh in parallel and a 4 to 8 ohm 20W resistor in series in conjunction with the active network should help according to Peter. I'll post my listening evaluation later this week if anyone’s interested, also I'll try posting pictures of my SST8 DIY MTM's that use these drivers, quite a unconventional design that some might be interested in being a dual tapered octagon with separate tilting mid enclosures and a telescoping tweeter mount for time alignment.
  Reply With Quote


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
Vifa xt25 tweeter Per Nielsen Multi-Way 67 12th March 2010 05:58 PM
Dayton RS 7"/ Vifa XT25 tweeter Crossover LukeDuke Multi-Way 4 13th February 2008 05:39 AM
Choosing tweeter SS 9500, 9800 or Vifa XT25 ? santi Multi-Way 5 21st January 2005 08:41 PM
My TL speakers with dual Vifa P17 and Heil tweeter Andypairo Multi-Way 42 14th May 2004 08:04 AM
Fs: Vifa Xt25tg30-04 Dual Concentric Dome Tweeter bbaker6212 Swap Meet 2 25th September 2002 09:03 PM

New To Site? Need Help?

All times are GMT. The time now is 03:05 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2