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Read the Post in new Window Read the Post in Threaded view  Post #22: The phenolic and none phenolic cones… by Romy the Cat on 2008-02-01 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
[quote user="Wojtek"]This is probably the reason I can listen to EV Patrician IV in relatively small space and close to the speaker without much of fatigue.  The other factor must be that it's 4- way design with narrow band-pass for each horn. E...

Read the Post in new Window Read the Post in Threaded view  Post #11: Re: Problems with T350, again... by Paul Butterfield on 2006-09-24 
Browse the content of the threads in new Window  Thread: An amplifier for Tweeters in Audio Discussions  17 Replies 
Hello Romy,Which other output tubes have you considered? I researched ‘suitable’ output tubes to drive tweets a while back for compression drivers [Be domes] — but not phenolic domes. Reading of your results with the EV tweet reminded me of how sweet...

Read the Post in new Window Read the Post in Threaded view  Post #20: Phenolic diaphragms, Debussy and Ormandy by Romy the Cat on 2008-02-01 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
I never had that Selenium 405 driver. Generally the phenolic diaphragms are very tricky and might have some excessive softness and some luck of transients. Selenium also had a habit to load gap with ferrofluid – it also might slightly detransientize ...

Read the Post in new Window Read the Post in Threaded view  Post #21: Soft phenolic drivers by Wojtek on 2008-02-01 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
This is probably the reason I can listen to EV Patrician IV in relatively small space and close to the speaker without much of fatigue.  The other factor must be that it's 4- way design with narrow band-pass for each horn. EV T25 2" phenolic com...

Read the Post in new Window Read the Post in Threaded view  Post #23: Altec phenolic drivers by el`Ol on 2008-02-02 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
Just another paging stuff, or something serious?http://cgi.ebay.com/ALTEC-VINTAGE-290E-GIANT-VOICE-COMPRESSION-DRIVERS_W0QQitemZ170189928173QQihZ007QQcategoryZ73372QQssPageNameZWDVWQQrdZ1QQcmdZViewItem...

Read the Post in new Window Read the Post in Threaded view  Post #18: Selenium by el`Ol on 2008-02-01 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
[quote user="op.9"]I was going to try a selenium 405 with the phenolic diaphragm, but they discontinued it. Everything else seemed a gamble. maybe I missed a trick...cheers, james[/quote]http://cgi.ebay.de/SELENIUM-D-405-2-PHENOLIC-DRIVER-1-PAAR_W0QQ...

Read the Post in new Window Read the Post in Threaded view  Post #22: The phenolic and none phenolic cones… by Romy the Cat on 2008-02-01 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
[quote user="Wojtek"]This is probably the reason I can listen to EV Patrician IV in relatively small space and close to the speaker without much of fatigue.  The other factor must be that it's 4- way design with narrow band-pass for each horn. E...

Read the Post in new Window Read the Post in Threaded view  Post #27: Re: Rich’s driver: alleged concerns. by rdrysdale on 2005-08-19 
Browse the content of the threads in new Window  Thread: Chinese upperbass horn. in Horn-Loaded Speakers  35 Replies 
Romy,     You make all very good points. I probably shouldn't call the front of the driver a phasing plug, because actually the long wavelengths really don't care much about the shape of the exit, they will just pass right through...

Read the Post in new Window Read the Post in Threaded view  Post #21: Soft phenolic drivers by Wojtek on 2008-02-01 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
This is probably the reason I can listen to EV Patrician IV in relatively small space and close to the speaker without much of fatigue.  The other factor must be that it's 4- way design with narrow band-pass for each horn. EV T25 2" phenolic com...

Read the Post in new Window Read the Post in Threaded view  Post #6: 2482 by mats on 2014-01-16 
Browse the content of the threads in new Window  Thread: JBL 2226 2445 2405 3-way and a path forward in Horn-Loaded Speakers  27 Replies 
Good start Dan!The JBL phenolic 2" driver is 2482.I would lower the crossover point as far as you dare, 300Hz or so.Now the 2226 will do what they are pretty good at.Later you will likely want to filter the 2445 around 2k.A 600Hz horn with a 1" drive...

Read the Post in new Window Read the Post in Threaded view  Post #7: Better attempt Klangfilm not. by msaudio on 2010-06-07 
Browse the content of the threads in new Window  Thread: Klangfilm: actual knowledge is better then fetish imaginatio... in Horn-Loaded Speakers  18 Replies 
This is not a klangfilm MF Driver, it is a RCA MF Alnico driver with phenolic diaghragm and bakelite rear cover. I have seen a few of these and they sound pretty good for a driver that is good from 300hz to 8000Hz. Sounds alot like a altec 290 driver...

Read the Post in new Window Read the Post in Threaded view  Post #7: JBL 2482 by KLegind on 2014-01-17 
Browse the content of the threads in new Window  Thread: JBL 2226 2445 2405 3-way and a path forward in Horn-Loaded Speakers  27 Replies 
[quote user="mats"]Good start Dan!The JBL phenolic 2" driver is 2482.I would lower the crossover point as far as you dare, 300Hz or so.Now the 2226 will do what they are pretty good at.Later you will likely want to filter the 2445 around 2k.A 600Hz h...

Read the Post in new Window Read the Post in Threaded view  Post #89: Speed and details are 1st priority by Murataltuev on 2015-10-09 
Browse the content of the threads in new Window  Thread: Another time aligned 5-way horn project in Horn-Loaded Speakers  189 Replies 
[quote user="mats"]My humble guess is that the titanium diaphragm won't ever give you the feeling you seek.JBL 2482 with its phenolic diaphragm may not be the quickest or most detailed, but has a truly wonderful tone that I never tire of.[/quote]I ha...

Read the Post in new Window Read the Post in Threaded view  Post #28: The poltergeist JBL? by Romy the Cat on 2008-03-11 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
Op, I clearly have no idea as I never have seen/heard about the 2440 with phenolic diaphragm. Who know perhaps they did it. The phenolic diaphragms were the invention in late 60-70s and a remedy against the nastiness of the first SS amplificatio...

Read the Post in new Window Read the Post in Threaded view  Post #12: Re: Let sail the horn.... by cv on 2006-09-11 
Browse the content of the threads in new Window  Thread: Big mama 1.5" horns.... in Horn-Loaded Speakers  27 Replies 
Ah, methinks you do Steve Schell a disservice Romy. He suspects that my RCA drivers have hairline cracks in their paper voice coils (certainly, one of the drivers is making strange noises) so I am getting his new replacements which are made of carbon...

Read the Post in new Window Read the Post in Threaded view  Post #28: More arond the Rich’s driver. by Romy the Cat on 2005-08-19 
Browse the content of the threads in new Window  Thread: Chinese upperbass horn. in Horn-Loaded Speakers  35 Replies 
[quote user="rdrysdale"] The bass driver will play to about 8 khz… [/quote] OK, this dose make some since, become I understood you that it droops after 300Hz. I wonder what made you to select the 300Hz as a crossover point – the currently existing...

Read the Post in new Window Read the Post in Threaded view  Post #39: Room by mats on 2014-01-01 
Browse the content of the threads in new Window  Thread: Summary: my/your audio: year by year in Audio Discussions  45 Replies 
An FM broadcast of church bells from the major cathedrals around Sweden welcomed 2014.  Blessed with holidays in my family's home in Dalarna, the miracle of a truly great room was granted.  Built with logs in 1947, spruce floor, ceiling, and since th...

Read the Post in new Window Read the Post in Threaded view  Post #3: 250hz horn at 1k? by Jorge on 2014-01-16 
Browse the content of the threads in new Window  Thread: JBL 2226 2445 2405 3-way and a path forward in Horn-Loaded Speakers  27 Replies 
Hello Dan,Love how you pass that cable through the port,  I used to do that too...long time ago.Why are you crossing your 250hz horn all the way up to 1 khz?The 2445 should be able to go much lower. Have you measured the response you are getting from...

Read the Post in new Window Read the Post in Threaded view  Post #40: No “search” anymore from me. by Romy the Cat on 2011-04-11 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
[quote user="gordan"]Roman,I don't think I've ever read your explanation why not 2482? We are all on a holy grail path to find a (somehow) available good compression driver that can go down to almost 200hz in domestic conditions and there are not man...

Read the Post in new Window Read the Post in Threaded view  Post #9: K-Horns, the “secret” and the evolution. by Romy the Cat on 2007-08-23 
Browse the content of the threads in new Window  Thread: World's Finest Sounding Audio Room in Audio Discussions  16 Replies 
[quote user="Jordi"] The secret is the K-Horns with ALL the mods!!! If you heard it you wouild know what I'm talking about! . [/quote] The K-Horns were Klipsch’s attempt to do something more or less reasonably sounding.  They were doing K-Horns...

Read the Post in new Window Read the Post in Threaded view  Post #1: Vintage JBL products lingo. by Romy the Cat on 2005-04-14 
Browse the content of the threads in new Window  Thread: Vintage JBL products lingo. in Horn-Loaded Speakers  0 Replies 
CATEGORIES:               2100 - Mid and mid-bass cone transducers               2200 - Low frequency transduc...

Read the Post in new Window Read the Post in Threaded view  Post #30: Re: JMLC curve, 340Hz horns etc etc by cv on 2005-04-14 
Browse the content of the threads in new Window  Thread: Vitavox’s S2 Survival Guide. in Horn-Loaded Speakers  123 Replies 
eyop fellas,Romy wrote: "Here we go! Not we are taking!!! I would not need the S2 tweeter and what it dose now in 400Hz horn is perfectly enough. I would go only for the midbass S2.  Something with 6” cellulose diaphragm, low to medium compressi...

Read the Post in new Window Read the Post in Threaded view  Post #12: Tweeters frustrations... by Romy the Cat on 2006-09-24 
Browse the content of the threads in new Window  Thread: An amplifier for Tweeters in Audio Discussions  17 Replies 
The EV 350 cones are still available form many sources, they are $25 per cone. There are some other phenolic domes for 1” driver, or smaller. I do not know anyone who does 3”-4” phenolic domes that would make them suitable for MF drivers. As far as ...

Read the Post in new Window Read the Post in Threaded view  Post #26: To gain some efficiency & LF vs. DEBZ by Paul S on 2008-10-26 
Browse the content of the threads in new Window  Thread: The loudspeakers for a powerful SET in Audio Discussions  48 Replies 
Like I said, Yoshi's gift of de-whizzered Reps got me thinking of better efficiency and more "weight".So far, I've got this:A pair of Eminence Kappa 18" in ~ 6 cu. ft BR box to ~250 Hz; de-whizzered Lowther DX-4 PLUS de-whizzered Reps ...

Read the Post in new Window Read the Post in Threaded view  Post #30: Update by op.9 on 2008-03-11 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
A kind chap from the Lansing Heritige forum has identified my new driver as a 2482. Interestingly those good radian people do an replacement aluminium diaphragm for this driver.What remains to be seen is how big the advantage of the original phenolic...

Read the Post in new Window Read the Post in Threaded view  Post #32: JBL 2482 by yoshi on 2008-03-11 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
The picture sure does looks like 2482 and it comes with Phenolic disphram (I have a pair though never used), but it's more like a mid-low driver.  JBL's recommendation is 300~6k.http://www.jblpro.com/pub/obsolete/2482.pdfYoshi...

Read the Post in new Window Read the Post in Threaded view  Post #7: Kilimanjaro's RCA by Romy the Cat on 2010-08-06 
Browse the content of the threads in new Window  Thread: The African compression electromagnet drivers? in Horn-Loaded Speakers  42 Replies 
In fact I posted a question to Wolf and he replied that he can produce the coil of any voltage the customer would like to have. That is good. The below is data by Wolf von Langa: MI-1428 - original version of the RCA 1428 - especially made for...

Read the Post in new Window Read the Post in Threaded view  Post #39: Why not 2482 by gordan on 2011-04-11 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
Roman,I don't think I've ever read your explanation why not 2482? We are all on a holy grail path to find a (somehow) available good compression driver that can go down to almost 200hz in domestic conditions and there are not many better candidates. ...

Read the Post in new Window Read the Post in Threaded view  Post #88: Titanium by mats on 2015-10-08 
Browse the content of the threads in new Window  Thread: Another time aligned 5-way horn project in Horn-Loaded Speakers  189 Replies 
My humble guess is that the titanium diaphragm won't ever give you the feeling you seek.JBL 2482 with its phenolic diaphragm may not be the quickest or most detailed, but has a truly wonderful tone that I never tire of....

Read the Post in new Window Read the Post in Threaded view  Post #5: Some thoughts about EV-T350 and the tweeters generally by Romy the Cat on 2005-05-08 
Browse the content of the threads in new Window  Thread: Electro-Voice T350, T35, + Fostex tweeters. in Horn-Loaded Speakers  34 Replies 
A lot of people ask me about those drivers and I’ll try to compile my vision about them. I did try most of the possible tweeters: dome tweeters with cloth cones, varies type of hard metal domes, compression drivers with aluminum, titanium, phenolic a...
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