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Read the Post in new Window Read the Post in Threaded view  Post #1: About bass horns by Johan Dreyer by Romy the Cat on 2008-02-11 
Browse the content of the threads in new Window  Thread: About bass horns by Johan Dreyer in Horn-Loaded Speakers  5 Replies 
This article was written by Johan Dreyer in 2006 posted at AA and the reposted recently at a Johan's local South African forum: http://vinylsa.co.za/forum/viewtopic.php?t=1016 I desided to give to the Johan’ thoughts some exposure at the horn-citri...

Read the Post in new Window Read the Post in Threaded view  Post #25: A compression driver as a musical instrument. by Romy the Cat on 2008-02-10 
Browse the content of the threads in new Window  Thread: Eventually - a reasonable midbass horn from GOTO in Horn-Loaded Speakers  97 Replies 
[quote user="Johan Dreyer"] I had a SG370 mid apart only yesterday.I should have taken a photograph. I have also seen the inside of the tweeter. They are very similar, so I have no reason to suppose the low mid SG 505 will be much different. I'll try...

Read the Post in new Window Read the Post in Threaded view  Post #8: Some basso-experiences form Sound Africa. by Romy the Cat on 2007-02-05 
Browse the content of the threads in new Window  Thread: Barn Conversion - James' Project in Horn-Loaded Speakers  28 Replies 
Johan, I understand what you are saying. This is kind of James’ barn thread and if you do not mind can you share with him one thing, I think that many others, including me, would be interested to learn the answer to this question: What did you gain g...

Read the Post in new Window Read the Post in Threaded view  Post #21: About the Rogero’s or Johan Dreyer’s approach. by Romy the Cat on 2009-07-31 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
A visitor of my site sent me email with following: “I take it you don't like the Rogero style (or Johan Dreyer) bass horns with wings, but you could add compression to a similar setup and make it work properly. I have made several design...

Read the Post in new Window Read the Post in Threaded view  Post #27: The time alignment scenarios. by Romy the Cat on 2009-08-02 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
A site visitor sent me emails saying: “Johan Dreyer says he can hear no time delay with his bass horns…” Well, first of all I disagree with it. The fact that Johan Dreyer can hear no time delay is not an indication that delay is n...

Read the Post in new Window Read the Post in Threaded view  Post #2: Basshorn vs. non-Basshorn, further talk. by Romy the Cat on 2008-02-12 
Browse the content of the threads in new Window  Thread: About bass horns by Johan Dreyer in Horn-Loaded Speakers  5 Replies 
In the linked there above “Barn Conversion - James' Project” I have expressed my attitude toward low frequency bass. I certainly not “against” bass horn it but have “concerns”. The “open bottom” concept that I invented for myself is always make me to...

Read the Post in new Window Read the Post in Threaded view  Post #25: Another renderation of Rogero’s or Johan Dreyer’s idea by Romy the Cat on 2009-08-01 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
This is a guy from Japan and he made his 4 ways GOTO drivers. What I like that he made midbass horns with smaller throat then Johan Dreyer. This Japanise guy has tall room and he made his horns to have smaller throat and to have a curve up – that is ...

Read the Post in new Window Read the Post in Threaded view  Post #10: OK, we have to be very careful in here. by Romy the Cat on 2007-02-05 
Browse the content of the threads in new Window  Thread: Barn Conversion - James' Project in Horn-Loaded Speakers  28 Replies 
[quote user="Johan Dreyer"]I call this the "pulsating room effect" Here there is a sensation of the air in the room actually pulsating to the sound.This is not boom but a sense of sheer energy being transmitted.Unlike music simply being played way to...

Read the Post in new Window Read the Post in Threaded view  Post #1: About bass horns by Johan Dreyer by Romy the Cat on 2008-02-11 
Browse the content of the threads in new Window  Thread: About bass horns by Johan Dreyer in Horn-Loaded Speakers  5 Replies 
This article was written by Johan Dreyer in 2006 posted at AA and the reposted recently at a Johan's local South African forum: http://vinylsa.co.za/forum/viewtopic.php?t=1016 I desided to give to the Johan’ thoughts some exposure at the horn-citri...

Read the Post in new Window Read the Post in Threaded view  Post #10: Some examples with Fundamentals Channel by Romy the Cat on 2006-05-26 
Browse the content of the threads in new Window  Thread: Adding one more spherical to Macondo. in Horn-Loaded Speakers  92 Replies 
Above the Johan Dreyer from South Africa uses a sort of Fundamental Channel for his installation. He obviously lucking one more channel to integrate his LS section and the Fundamental Channel. His Lower Mid charnel should be twice larges and sit on...

Read the Post in new Window Read the Post in Threaded view  Post #5: Forget about the Hindenburg horns by Romy the Cat on 2007-02-05 
Browse the content of the threads in new Window  Thread: Barn Conversion - James' Project in Horn-Loaded Speakers  28 Replies 
[quote user="Dominic"]I'd put your sub horns above your head. There are some big issues with that but you save a lot on concrete engineering, and assuming space remains in future you could apply what you learned from the overhead wood horns to a more...

Read the Post in new Window Read the Post in Threaded view  Post #7: Upper bass horns: throats or the basics? by Romy the Cat on 2006-05-27 
Browse the content of the threads in new Window  Thread: Transition : Driver to throat, when throat is smaller than d... in Horn-Loaded Speakers  11 Replies 
Jessie, Perhaps if you search something in the throat jungle you might fish some interesting results. You see, optimizing the driver to throat transition you might get some HF out of upper bass driver. But besides getting more HF there is something ...

Read the Post in new Window Read the Post in Threaded view  Post #1: Show Report PiS Fest by Romy the Cat on 2005-05-04 
Browse the content of the threads in new Window  Thread: Show Report PiS Fest in Audio News  0 Replies 
Show Report PiS Festcomposed by Johan Dreyer This show was held at the Rama Sebo convention centre in Freetown on April 30 and May 1.Unfortunately my kids played with my camera and destroyed the photos.Highlights were:JBL announced that they were s...
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