The Advantages of Floor Coupled Up-Firing Speakers - Page 156 - 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 2nd April 2011, 11:55 PM   #1551
CLS is offline CLS  Taiwan
diyAudio Member
 
Join Date: Jun 2005
Location: Taiwan
Beautiful and elegant as it is, I still see there's something to improve. I think there're chances to choose smaller tweeters to free up the space around the midbass unit (to reduce nearby reflections). As to all those sharp edges near the drivers, I'm not sure how diffractions would affect such design -- Or, is it built like this on purpose? Like a diffraction slot in a CD horn? (wow! )

In their web site I see the grile (the perforated frame) seems to be another source of diffraction. Maybe it has to be that way to maintain the overall shape, or the diffraction is built-in on purpose?
  Reply With Quote
Old 3rd April 2011, 11:30 AM   #1552
graaf is offline graaf  Poland
diyAudio Member
 
graaf's Avatar
 
Join Date: Jun 2007
Quote:
Originally Posted by CLS View Post
Beautiful and elegant as it is, I still see there's something to improve. I think there're chances to choose smaller tweeters to free up the space around the midbass unit (to reduce nearby reflections). As to all those sharp edges near the drivers, I'm not sure how diffractions would affect such design -- Or, is it built like this on purpose? Like a diffraction slot in a CD horn? (wow! )

In their web site I see the grile (the perforated frame) seems to be another source of diffraction. Maybe it has to be that way to maintain the overall shape, or the diffraction is built-in on purpose?
I believe that all those characteristic features are deliberate design choices but I also believe that a sidewall flooder can be made to work without them
__________________
"high phooey and hystereo" - Yascha Heifetz
  Reply With Quote
Old 16th April 2011, 07:20 PM   #1553
Elias is offline Elias  Finland
diyAudio Member
 
Elias's Avatar
 
Join Date: May 2003
Location: Where you live
I have just encountered a dipole 'flooder'
http://classicaudio.ru/articles/assystem.pdf


I wonder why they don't form a pair, though


- Elias
__________________
Liberate yourself from the illusion of two speaker stereo triangle
Dipole Bass vs Monopole Bass Stereophonic Sound from a Single Loudspeaker 3 Speaker Linear Stereo Matrix Wavelets
  Reply With Quote
Old 17th April 2011, 06:25 AM   #1554
graaf is offline graaf  Poland
diyAudio Member
 
graaf's Avatar
 
Join Date: Jun 2007
Quote:
Originally Posted by Elias View Post
I have just encountered a dipole 'flooder'
http://classicaudio.ru/articles/assystem.pdf
looks like there is a kind of theory of asymmetric stereo and the system is a deliberate implementation if it
but obviously the reviewer didn't like it

proponent of the theory on russian forums is a guy Mikhail Urakoff ( my free transcitpion)
I don't know what to think, Urakoff is clearly a vintage nut and also a technical advisor of Kogerer company: Kogerer - HI-END

He builds his own giantic speakers (quite Hartleyan, ~50 in diameter) with wooden cones - woodmonitor - and apparently likes to play them unbaffled just lying on the floor

I attach two picture taken in his apartment
Attached Images
File Type: jpg DSC_0220.jpg (90.8 KB, 319 views)
File Type: jpg DSC_0240.jpg (109.8 KB, 316 views)
__________________
"high phooey and hystereo" - Yascha Heifetz
  Reply With Quote
Old 17th April 2011, 11:51 AM   #1555
diyAudio Member
 
Radugazon's Avatar
 
Join Date: Aug 2010
Location: Sulawesi
Wow!

In this highly anarchic state (of listening room...), it's the evidence that the theory of stereo asymmetry is the only way to compensate the ambient disorganization.
  Reply With Quote
Old 17th April 2011, 03:20 PM   #1556
el`Ol is offline el`Ol  Germany
diyAudio Member
 
Join Date: May 2005
Location: Bavarian Forest
Quote:
Originally Posted by Elias View Post
I have just encountered a dipole 'flooder'
http://classicaudio.ru/articles/assystem.pdf
I once tried this setup (picture) and found it doesn't sound like a dipole at all, rather like a backloaded horn.
Attached Images
File Type: jpg eck.JPG (9.1 KB, 290 views)
  Reply With Quote
Old 17th April 2011, 07:29 PM   #1557
graaf is offline graaf  Poland
diyAudio Member
 
graaf's Avatar
 
Join Date: Jun 2007
Quote:
Originally Posted by Radugazon View Post
Wow!

In this highly anarchic state (of listening room...), it's the evidence that the theory of stereo asymmetry is the only way to compensate the ambient disorganization.
very funny

well, it is clear that on the second picture we can see Gospodin Urakoff's glue-and-solder-area, not His listening room, isn't it quite obvious?

don't You think Mr forget-systematically-never-seen-and-never-done-So-no-valuable-opinion?

OTOH when one stops laughing and looks carefully at the picture instead one can see some legendary and $$$ speakers inside like Klangfilm Bionor for example, Urakoff is not a hoaxter unlike some others, among them certain Mr haven't-seen-anything-tangible...
__________________
"high phooey and hystereo" - Yascha Heifetz

Last edited by graaf; 17th April 2011 at 07:39 PM.
  Reply With Quote
Old 18th April 2011, 08:19 AM   #1558
graaf is offline graaf  Poland
diyAudio Member
 
graaf's Avatar
 
Join Date: Jun 2007
Quote:
Originally Posted by el`Ol View Post
I once tried this setup (picture) and found it doesn't sound like a dipole at all, rather like a backloaded horn.
the idea looks great! how did it in practice?
__________________
"high phooey and hystereo" - Yascha Heifetz
  Reply With Quote
Old 22nd April 2011, 08:43 AM   #1559
graaf is offline graaf  Poland
diyAudio Member
 
graaf's Avatar
 
Join Date: Jun 2007
Mr Leo de Klerk's flooder in disguise:
Bloomline Acoustics
terugblik 184
A SOUND SYSTEM - WO2006100250A2 - Patsnap

I am a bit pissed off by obvious insolent theft my avatar

Here is my position:
monaural stereophonics

I welcome Mr de Klerk in the flooder camp
__________________
"high phooey and hystereo" - Yascha Heifetz
  Reply With Quote
Old 22nd April 2011, 08:59 AM   #1560
el`Ol is offline el`Ol  Germany
diyAudio Member
 
Join Date: May 2005
Location: Bavarian Forest
Quote:
Originally Posted by graaf View Post
the idea looks great! how did it in practice?
The bass of the little HX135 rather sounded like 15" than like 5" and the tonal balance was really good (not measured, just subjective impression). Two drawbacks:
1) The bass is so directional that the floor position is only OK when you stand up
1) In the ceiling position the WAF is not high because the minimum size (l also tested smaller "enclosures") is 50 cm.
  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
Using a diffuser cone for up-firing speakers tspringer99 Multi-Way 19 23rd July 2014 02:04 AM
Floor Standing Speakers. gurpreetsingh Full Range 11 12th June 2012 06:42 AM
side/ rear firing speakers Good/Bad? mcmahon48 Multi-Way 1 6th February 2009 12:28 PM
How far can the driver of a down-firing sub be from the floor? The Paulinator Subwoofers 11 16th May 2007 08:10 PM
Woofer: side firing pair vs front firing? tcpip Multi-Way 13 9th September 2005 02:13 PM


New To Site? Need Help?

All times are GMT. The time now is 12:22 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