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Read the Post in new Window Read the Post in Threaded view  Post #95: Fertin by el`Ol on 2010-05-07 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
[quote user="Romy the Cat"] I use 10” but they have free air resonance of 19Hz. Not many of 18” drivers have such a low resonance.[/quote]The lowest I know is the Fertin with 23 Hz.http://www.fertin-acoustic.com/hp_46ex.php...

Read the Post in new Window Read the Post in Threaded view  Post #95: Fertin by el`Ol on 2010-05-07 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
[quote user="Romy the Cat"] I use 10” but they have free air resonance of 19Hz. Not many of 18” drivers have such a low resonance.[/quote]The lowest I know is the Fertin with 23 Hz.http://www.fertin-acoustic.com/hp_46ex.php...

Read the Post in new Window Read the Post in Threaded view  Post #96: Low resonance is good... by Romy the Cat on 2010-05-07 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
[quote user="el`Ol"]The lowest I know is the Fertin with 23 Hz. http://www.fertin-acoustic.com/hp_46ex.php [/quote] Fertin does 23Hz with 18inch. The Scan-speak did with 10 inches http://www.scan-speak.dk/datasheet/pdf/...

Read the Post in new Window Read the Post in Threaded view  Post #4: No substantial changes in mainstream audio by el`Ol on 2008-03-20 
Browse the content of the threads in new Window  Thread: The jump-start of loudspeaker economy in Audio News  17 Replies 
Hello Romy!My predictions are:The mainstream manufacturers will continue as they have been doing for decades: Use steep x-overs that allow them to use more and more exotic cone materials without changing anything effectively. Strange-looking con...

Read the Post in new Window Read the Post in Threaded view  Post #8: Corner-load whatever you want by el`Ol on 2010-01-25 
Browse the content of the threads in new Window  Thread: Vitavox corner horn in Horn-Loaded Speakers  10 Replies 
I am currently planning high-WAF speakers for my sister which have to stand in the corners on the floor. Asking for small corner horns I was told the EV Baronet could be a solution. Simulating it with roughly estimated dimensions I found that the FR ...

Read the Post in new Window Read the Post in Threaded view  Post #67: My field coil driver by audiofilofine on 2010-02-27 
Browse the content of the threads in new Window  Thread: Vitavox S2 with Electromagnets in Horn-Loaded Speakers  91 Replies 
[quote user="Romy the Cat"]  haralanov wrote:And the very same is with electromagnets. With those so widely used 12V power supplies (Fertin, Feastrex for instance) the sound is always softer than it should be in reality with severally restricted dy...

Read the Post in new Window Read the Post in Threaded view  Post #61: The high voltage remedy? by Romy the Cat on 2010-02-26 
Browse the content of the threads in new Window  Thread: Vitavox S2 with Electromagnets in Horn-Loaded Speakers  91 Replies 
[quote user="haralanov"]And the very same is with electromagnets. With those so widely used 12V power supplies (Fertin, Feastrex for instance) the sound is always softer than it should be in reality with severally restricted dynamics and transien...

Read the Post in new Window Read the Post in Threaded view  Post #60: Field coils and voltages by haralanov on 2010-02-26 
Browse the content of the threads in new Window  Thread: Vitavox S2 with Electromagnets in Horn-Loaded Speakers  91 Replies 
Romy, I will not comment the first part of your post, because it will be offtopic. Let concentrate on the subject of field coils and particularly on the difference between high impedance high voltage fieldcoils and those using thick low impedance ...
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