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   Home » Horn-Loaded Speakers» 60hz, GPA-515-8ghp horn... (33 posts, 2 pages)
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  »  New  Problems with horns: upper bass ..  Must it be about loading?...  Horn-Loaded Speakers Forum     109  932674  03-25-2005
  »  New  Chinese upperbass horn...  Some sensibility about bass reproduction...  Horn-Loaded Speakers Forum     35  287805  08-08-2005
  »  New  Adding one more spherical to Macondo...  It is about magnet and SS type....  Horn-Loaded Speakers Forum     92  763655  05-23-2006
  »  New  45Hz Bass Horn..  Can We Ever be Saved From Ourselves?...  Horn-Loaded Speakers Forum     23  254985  09-19-2006
  »  New  A right midbass solution for Altec 515G...  Its even possible to make my midbass......  Horn-Loaded Speakers Forum     21  147643  05-06-2007
  »  New  8" Goto Woofer for 60Hz Horn..  It's not a Goto 8in driver...  Horn-Loaded Speakers Forum     5  67271  11-03-2008
07-12-2008 Post does not mapped to Knowledge Tree
chaos
Vienna
Posts 23
Joined on 06-27-2008

Post #: 21
Post ID: 7798
Reply to: 7748
Midbass, final question 1.0.0a
romy, you said, you would place a 60hz midbass on the side, is this still your opinion? of, course i found no other solution in my small room. will do it the way you suggested, 60-300, 300-1000(thinking about gpa 288h(s2 is too expensive for me), maybe 160hz azurahorn, maybe i will make my own. would ask jezzie for advice.).60hz down is another question...later, reading about macondo.
spherical 50hz...would like to do it, a "no prisoners" solution;-)))
hope to get the gpa515´s soon and will buy the birch plywood for the horn next week.had a discussion with a guy who builds guitars, he recommended solid spruce, but dont wont to get esoteric(it will resonate if you dont make it from a ton of concrete, why not make the resonances sound good..bla, bla..we had to much beer)


regards, klaus
07-12-2008 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,655
Joined on 05-28-2004

Post #: 22
Post ID: 7800
Reply to: 7798
The Eleventh Commandment.

 chaos wrote:
romy, you said, you would place a 60hz midbass on the side, is this still your opinion? of, course i found no other solution in my small room.

Klaus, there is a rule that I developed – I have no explanation for it but I obey it: any lower frequencies shell not be radiated from the space between higher frequencies.

 chaos wrote:
spherical 50hz...would like to do it, a "no prisoners" solution;-)))

The spherical if not is not the case. The 50hz is "no prisoners" solution… but ONLY if it done properly. Badly designed and implemented 50Hz horn harms up more then helps.

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
07-12-2008 Post does not mapped to Knowledge Tree
Wojtek
Pinckney (MI), United States
Posts 171
Joined on 09-01-2005

Post #: 23
Post ID: 7802
Reply to: 7798
Azura horn
Klaus
Martin  (Azura horn ) is making for me extension to 2.75" (BC 8p21)and 1.4" for 204 Hz (altec 288c) .He also developed 550 hz horn for S2 . He understands importance of smooth driver -throat transition . It would be ready to go solution for you with matching aesthetics and sound of your lower midrange and mid channels.I think you could use Jesse's technique of adding plaster to the back surface of horns for reinforcing their walls. Unlike for us in US (dolar depreciation ) those horns are still relatively unexpensive for EU customers .My listening space is simmilar  to yours and I can't imagine  160hz  horns  with Le'Cleach  flare  for  lower midrange  and additional  50-60 Hz  midbass  not to mention that you'll have to fit somehow a bass channels too.
The drag is that it may take a few months  to  get those horns  from  Australia. There is also BD -Design variety of tantrix Oris horns (second hand??) made for 8" for which you could just make an extension to fit your driver. Check out E-pay for German  or Balkanian horn manufacturer . Those are really well made tick ,heavy plastic horns which may fit a budget and they are local .
Regards, W
07-12-2008 Post does not mapped to Knowledge Tree
mumford
Posts 10
Joined on 06-10-2008

Post #: 24
Post ID: 7803
Reply to: 7802
Sizes of Azura horns
Wojtek,

Can you tell us the size of the 204hz Azurahorn?

I am pretty sure that the 550hz horn is around 15" in diameter.  AH-425 is the model number.  Please correct me if I am wrong.
07-13-2008 Post does not mapped to Knowledge Tree
Wojtek
Pinckney (MI), United States
Posts 171
Joined on 09-01-2005

Post #: 25
Post ID: 7804
Reply to: 7803
Www.Azurahorn.com
have all the info ,with gallery pictures , trade secrets (how to roll on your own),pricess etc. Azura AH204 dia is ~31.5" and default depth for 8" driver ~12.75" .With 1.4" it will probably  be close to 30" . Le Cleach flare is quite a bit bigger than regular traktrix (roled-of lypsWink .AH425 is a new horn in developement for Lynn Olson new speaker (I heard ) to match GPA 288 driver , and the "cut off " is 425 Hz .I don't follow this thread. AH 550 would be much smaller and what Martin told me developed especially for S2. Martin is really pleasant to deal with but because of his day job schedule it may take a while to get them and he lives on the other side. Theses are really pretty horns and in its natural state (unpainted )remind me of sea shels. Mine will be modular and I was thinking of pouring sculpture plaster to reinforce walls (like Jesse) but God knows where I'll be living in a year or two so untill I settle down they gotta be light.
RGDS, W
07-13-2008 Post does not mapped to Knowledge Tree
mumford
Posts 10
Joined on 06-10-2008

Post #: 26
Post ID: 7805
Reply to: 7804
Thanks for your reply
Which 8" driver are you using to load your AH204?  This may be a great solution from 250 hz to 1000 hz.
07-13-2008 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,655
Joined on 05-28-2004

Post #: 27
Post ID: 7810
Reply to: 7804
Development for Lynn Olson…

 Wojtek wrote:
...AH425 is a new horn in developement for Lynn Olson new speaker (I heard ) to match GPA 288 driver…

BTW, I have to say that I did read that Lynn Olson’s thread a few times; I think it call “Beyond Areal”. I would not vest too much into Lynn Olson’s development. I do not exactly what he does (besides entreating the DIYaudio folks) but many and many things in that thread are too bogus to take it seriously and  read one-two posts per month and never able to finish reading the posts – too absurd and too extraneous… Their methods, their judgments and their references are just too much irrelevant for the sake of Sound. Whatever the Beyond Areal will turn into, I am sure will be the very same boring Areal. It is not to mention that no one from that thread actually does the things in horns (except one guy who is persona non grata on my site) – they just run mouths on any subject, nothing else.

The caT


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
07-13-2008 Post does not mapped to Knowledge Tree
Wojtek
Pinckney (MI), United States
Posts 171
Joined on 09-01-2005

Post #: 28
Post ID: 7811
Reply to: 7805
It may ,it may not (be a great solution)

I use regular Lowther DX4 (ENABLED) . I don't think the 250-400 is stellar and  I'm still waiting for the extension to try small throat for lower midrange (2,75") (B&C 8P21E driver) for 200-1000Hz . Here is Martin's opinion on the subject.

>I made the 204 extensions to 2.75" throat for a 6ND410 (18sound) 6"
driver
>for mid bass - I thought it worked OK, it measured OK - until I compared it
>to Lowther on 204 8" throat horn - same limited bandwidth set with a 24dB
>cross over.  The Lowther was just way ahead on sound quality - deaf man
>would have heard it.  So I gave up on that idea.

We'll see. Regards, W

07-13-2008 Post does not mapped to Knowledge Tree
mumford
Posts 10
Joined on 06-10-2008

Post #: 29
Post ID: 7812
Reply to: 7811
Thanks wojtek
 Wojtek wrote:

I use regular Lowther DX4 (ENABLED) . I don't think the 250-400 is stellar and  I'm still waiting for the extension to try small throat for lower midrange (2,75") (B&C 8P21E driver) for 200-1000Hz .



Looking forward to your experience, regarding the lower mid horn.

As we are discussing Lynn Olson's new speaker, here is what it appears to have so far. 

Raal tweeters 5000hz and above
Altec 288-16H with Azurahorn 1000 hz to 5000 hz
subwoofer below 80 hz
Unknown (possibly open baffle) from 80 hz to 1000 hz
07-13-2008 Post does not mapped to Knowledge Tree
chaos
Vienna
Posts 23
Joined on 06-27-2008

Post #: 30
Post ID: 7816
Reply to: 7802
160hz le´cleach...
hi wojtek!
i know, with the 160hz i may run into problems. i thought about making tractrix horns or maybe go for 400x-over with the 204´s from martin. his price is really good! i would cover the horns with something, maybe sand, maybe plaster.later.
the balkan horns, could not find anything, to you have a name or an adress?

thx,klaus
07-14-2008 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,655
Joined on 05-28-2004

Post #: 31
Post ID: 7821
Reply to: 7812
The chewing gum of Lynn Olson's new speaker

 mumford wrote:
As we are discussing Lynn Olson's new speaker, here is what it appears to have so far. 

Raal tweeters 5000hz and above
Altec 288-16H with Azurahorn 1000 hz to 5000 hz
subwoofer below 80 hz
Unknown (possibly open baffle) from 80 hz to 1000 hz 

From what I see so far there is no Lynn Olson’s new speaker, there is even no concept of any speaker. There is only endless talking and talking and talking about the stupid drivers, bogus horns, the abstract idiotic measurements.  I hate the whole attitude of those people – I call it PMS Audio – a typical syndrome from the DIYers. It is like there is a DIYer guy at that site that for the last 5 years dally changes capacitors in his DAC. There is no single thought from that guys about sound, not single indication abut music – juts dally frustration and delly "resolution" about capacitors – the result for this guys is not imperative, even out of his attention but the prosess is greatly celebrated. Looking at the Lynn Olson’s saga about his “intention” to make his speaker I feel the same way… So, I feel that regardless what elements he will use he, from my view, lacks the essential viewpoints that makes speakers more than just a frequency-pushing machine.

The caT


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
10-23-2008 Post does not mapped to Knowledge Tree
RonyWeissman
Lyon, France
Posts 138
Joined on 05-29-2004

Post #: 32
Post ID: 8613
Reply to: 7816
CHAOS : Any Progress 60hz horn?
fiogf49gjkf0d
Hi, any photos or progress reports on your 60hz horn.  If you wouldn't mind exchanging an e-mail or two I could use some help with design of rectangular horn for my Altec 515s??
Thanks,

R Weissman
ronyweissman@hotmail.com
Lyon, France
10-30-2008 Post does not mapped to Knowledge Tree
chaos
Vienna
Posts 23
Joined on 06-27-2008

Post #: 33
Post ID: 8656
Reply to: 8613
60hz horn
fiogf49gjkf0d
hi rony!
sorry for the late reply, my job....
i did not start to build the horn, working on a phono stage for a friend. will start to build the 60hz horn in about 2 months. all calculations are done, should be no problem. will be made of layers of plywood and carbonfiber between the plywood sheeds. if i can help, of course i will! just send a mail and i will give you the data. but i dont know how it will sound;-)

cheers,klaus
Page 2 of 2 (33 items) Select Pages:  « 1 2
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Problems with horns: upper bass ..  Must it be about loading?...  Horn-Loaded Speakers Forum     109  932674  03-25-2005
  »  New  Chinese upperbass horn...  Some sensibility about bass reproduction...  Horn-Loaded Speakers Forum     35  287805  08-08-2005
  »  New  Adding one more spherical to Macondo...  It is about magnet and SS type....  Horn-Loaded Speakers Forum     92  763655  05-23-2006
  »  New  45Hz Bass Horn..  Can We Ever be Saved From Ourselves?...  Horn-Loaded Speakers Forum     23  254985  09-19-2006
  »  New  A right midbass solution for Altec 515G...  Its even possible to make my midbass......  Horn-Loaded Speakers Forum     21  147643  05-06-2007
  »  New  8" Goto Woofer for 60Hz Horn..  It's not a Goto 8in driver...  Horn-Loaded Speakers Forum     5  67271  11-03-2008
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