Waveguides and horns - Page 111 - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

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 30th April 2012, 04:27 PM   #1101
wdhro is offline wdhro  United States
diyAudio Member
 
Join Date: Nov 2006
Quote:
Originally Posted by gedlee View Post
No, not in the least.

Physics requires that any source which is Constant Directivity cannot be flat on axis. Hence, the flat response is simply proof that the device is not constant directivity. I would be impressed if it fell at 6 dB/oct though - in the far-field that is, because everything looks good at 30 cm.
It can be flat on axis if the driver has a flat power response. Is that not the case below the mass corner? It's certainly something I've seen before. It's why we use shelf filters over the top portion of the bandwidth rather than across the entire operating region...

That said, I agree that the TAD drivers do not have a flat power response to 20kHz. Are plane-wave tube measurements a thing of the past?
  Reply With Quote
Old 3rd May 2012, 06:04 PM   #1102
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Send a message via Skype™ to jzagaja
Hot pictures from München.
Attached Images
File Type: jpg Mon2012_1.jpg (75.9 KB, 798 views)
File Type: jpg Mon2012_2.jpg (62.1 KB, 794 views)
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote
Old 4th May 2012, 05:56 PM   #1103
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Send a message via Skype™ to jzagaja
Romy's pictures:

GoodSoundClub - Romy the Cat's Audio Site - High End 2012 in Germany
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote
Old 4th May 2012, 07:48 PM   #1104
phusis is offline phusis  Denmark
diyAudio Member
 
Join Date: Feb 2011
Location: Odense
Thanks for the München pictures, Jacek!

Any reactions to the sound of the flatpack and/or Universum? Are the Universum's with the active bass module?
  Reply With Quote
Old 4th May 2012, 07:52 PM   #1105
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Send a message via Skype™ to jzagaja
Still waiting for independent opinions - note that this two models were prepared only three weeks before trades, Universe virtually as we live 700km apart. What I know from initial trials is that DEQX or similar processor (OpenDRC+AcourateDRC) are highly recommended - DEQX is used by Autotech but only as a DAC (microphone failure). Universe uses active Kappa 15A. For more extensions we could try Dayton Reference. There were questions about open baffle construction as well.

Munich High End Show Report 2012 High End Society Show Coverage

Autotech rating:

no. 1 MBL
no. 2 Universe
no. 3 Cessaro
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here

Last edited by jzagaja; 4th May 2012 at 08:18 PM.
  Reply With Quote
Old 6th May 2012, 10:40 PM   #1106
phusis is offline phusis  Denmark
diyAudio Member
 
Join Date: Feb 2011
Location: Odense
Has the München exhibition gone over well for Auto-tech?

You should've brought pair of properly run-in Mummy v2's as well - people would have eaten them up
  Reply With Quote
Old 7th May 2012, 09:08 AM   #1107
vuki is offline vuki  Croatia
diyAudio Member
 
vuki's Avatar
 
Join Date: Jun 2002
Location: zagreb, croatia
The room was small, the sound was good. I listened to Universum - really good; balanced and natural sound.
  Reply With Quote
Old 8th May 2012, 11:08 AM   #1108
diyAudio Member
 
Join Date: Dec 2005
Location: Norway
Default 4001 in Autotech Iwata

Quote:
Originally Posted by Gluca View Post
Hi Lukazs

where did you find those measurements?
(I am using 4001 and your/JMLC iwatas)

Gianluca
hello
where do you hipass the TD-4001 in that horn? slope? added tweeter?
doing extensive tests with JBL 2446 truextent and TAD TD-4001 in Norway
we have Iwata 300, CNC´d plywood Iwata 300, JMLC200T, TAD-TH4001, JBL 2360. In the bigger horns we´ve tried hipassing at down to 300-350Hz with mixed results.
target is to replace AG Trio above midbasshorns
best
Leif
Norway
Attached Images
File Type: jpg IMG_0558.jpg (327.5 KB, 671 views)
File Type: jpg IMG_0560.jpg (273.0 KB, 649 views)
  Reply With Quote
Old 8th May 2012, 09:26 PM   #1109
jzagaja is offline jzagaja  Poland
diyAudio Member
 
Join Date: Jun 2004
Location: Szczecin
Send a message via Skype™ to jzagaja
SEOS 24 is ready with throat angle 14deg, waiting for TAD 4001, Radian 950/951 and 18sound ND4015BE, NSD1480N, ND2060A angles.
Attached Images
File Type: gif SEOS-24-1.5inch.gif (36.8 KB, 611 views)
__________________
Visit us at http://www.horns.pl/
The SEOS™ Project http://www.avsforum.com/t/1291022/he...-rallying-here
  Reply With Quote
Old 8th May 2012, 10:06 PM   #1110
diyAudio Member
 
Join Date: Dec 2004
Location: Bakersfield, CA
Default IWATA 300 with Beyma CP750ti

I recently bolted on a pair of Beyma CP750ti CDs to my IWATA 300s. I really, really like the combination. They work very well together.

http://profesional.beyma.com/ingles/pdf/CP750Ti.pdf
__________________
Best Regards,
Carl Huff
  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
smith horns and using compression horns for a Karlson party speaker project bikehorn Multi-Way 14 30th January 2013 06:20 PM
Horns inside of horns open foe discussion oilcanracer Multi-Way 3 15th February 2010 04:42 AM
Compression drivers in horns or waveguides 454Casull Multi-Way 6 1st December 2008 01:41 PM
Phase plug necessity in horns/waveguides 454Casull Multi-Way 3 18th September 2005 08:36 PM
Horns: Vibrations and resonances in metal horns Rocky Multi-Way 10 28th July 2004 02:38 AM


New To Site? Need Help?

All times are GMT. The time now is 08:40 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