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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[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...
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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...
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Just another paging stuff, or something serious?http://cgi.ebay.com/ALTEC-VINTAGE-290E-GIANT-VOICE-COMPRESSION-DRIVERS_W0QQitemZ170189928173QQihZ007QQcategoryZ73372QQssPageNameZWDVWQQrdZ1QQcmdZViewItem...
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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 ...
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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...
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[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...
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[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...
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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...
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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...
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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...
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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...
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[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...
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[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...
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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...
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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...
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[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...
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[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...
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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...
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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...
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[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...
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CATEGORIES: 2100 - Mid and mid-bass cone transducers 2200 - Low frequency transduc...
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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...
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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 ...
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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...
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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...
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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. ...
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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 ...
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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...
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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....
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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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