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Read the Post in new Window Read the Post in Threaded view  Post #2: Re: JBL 2440 by Romy the Cat on 2006-09-16 
Browse the content of the threads in new Window  Thread: Hmmm... the sad truth about BMS.. in Horn-Loaded Speakers  6 Replies 
I did not see in your post any “sad truth about BMS”I would stick in the JBL 2440. It is relatively inexpensive. Has practically the same performance as the hipped JBL 375 and all together a good performer. It’s diaphragms are wildly available and it...

Read the Post in new Window Read the Post in Threaded view  Post #3: Re: JBL 2440 by stuck.wilson on 2006-09-16 
Browse the content of the threads in new Window  Thread: Hmmm... the sad truth about BMS.. in Horn-Loaded Speakers  6 Replies 
the sad truth was the space, the finite funds, and the available bms pucks!  the sad truth also, i suppose,the lack of available, and sensitive horn users to bounce off of!i could probably see what your dislike of the bms stems from-- i tried to...

Read the Post in new Window Read the Post in Threaded view  Post #33: ...and JBL 2440 by Romy the Cat on 2008-03-12 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
http://www.jblpro.com/pub/obsolete/2440.pdf...

Read the Post in new Window Read the Post in Threaded view  Post #6: How to renovate 2440? by Dominik on 2010-09-22 
Browse the content of the threads in new Window  Thread: JBL2440 on a round 300Hz tractrix horn in Horn-Loaded Speakers  5 Replies 
Hi,Finally, I have time to build some horn speakers and learn what is it,  bought JBL 2440 drivers and before my frame will by finish (next week) and horns will arrive I want to renovate those drivers. My question is:Can I take off that "grainy" topc...

Read the Post in new Window Read the Post in Threaded view  Post #9: JBL 375/2440 by Romy the Cat on 2011-07-03 
Browse the content of the threads in new Window  Thread: Ultimate MF compression driver? in Horn-Loaded Speakers  45 Replies 
[quote user="Jorge"]One more thing about the JBL 375, I did play around with them enough, I aligned the diaphragms several times untill they sounded their best and were very listenable,  This was some time ago now, I didnt turn my horns then, so I tr...

Read the Post in new Window Read the Post in Threaded view  Post #13: Quite interesting ideas you put in there. by Romy the Cat on 2009-08-19 
Browse the content of the threads in new Window  Thread: MacondoLite in Horn-Loaded Speakers  18 Replies 
[quote user="ayebee"] The horns that Stereo Lab make are very good, especially considering the relatively modest prices. I bought the "Ultra-Fi" version of the 140Hz horns and they are of course not completely free of resonance ….Present system consi...

Read the Post in new Window Read the Post in Threaded view  Post #2: Re: JBL 2440 by Romy the Cat on 2006-09-16 
Browse the content of the threads in new Window  Thread: Hmmm... the sad truth about BMS.. in Horn-Loaded Speakers  6 Replies 
I did not see in your post any “sad truth about BMS”I would stick in the JBL 2440. It is relatively inexpensive. Has practically the same performance as the hipped JBL 375 and all together a good performer. It’s diaphragms are wildly available and it...

Read the Post in new Window Read the Post in Threaded view  Post #27: What do I have here? 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 
Romy,I took your advice and now have a single 2440 driver. At least i THINK its a 2440. On opening it i find that it has a phenolic diaphragm! Have I been sold something else? I was not aware that there were ever any phenolics for the 2440 family. Wa...

Read the Post in new Window Read the Post in Threaded view  Post #3: The most exclusive audio circles? Oh, please… by Romy the Cat on 2009-08-31 
Browse the content of the threads in new Window  Thread: The African compression electromagnet drivers? in Horn-Loaded Speakers  42 Replies 
[quote user="twogoodears"] Christine and Wolf Von Langa deal in nice mods, restorations and rebuilding from scratch of classic Altec's drivers, adding the sought-after "field-coils" feature instead using permanent magnets... a snobbish, yet highly co...

Read the Post in new Window Read the Post in Threaded view  Post #2: Great Vintage Loudspeakers drivers by Nagrapex on 2009-05-20 
Browse the content of the threads in new Window  Thread: Another electromagnet driver: Great Vintage Loudspeakers. in Horn-Loaded Speakers  17 Replies 
These are clearly JBL pots and back covers (which have been milled flat). The refinishing job is quite nice, but the origins are clear. Also, the phenolic diaphragm is clearly for the 2482/2485 (and looks like a JBL part), which has a slightly wider ...

Read the Post in new Window Read the Post in Threaded view  Post #15: Macondo-clone ramblings by ayebee on 2009-08-20 
Browse the content of the threads in new Window  Thread: MacondoLite in Horn-Loaded Speakers  18 Replies 
The system is still very much a work in progress, but I have come to the conclusion that the concept as such is very, very good. It's only up to me to make it sound as well as I know it is capable of. Making and fine-tuning the crossover might take m...

Read the Post in new Window Read the Post in Threaded view  Post #2: JBL into 300Hz horn by Romy the Cat on 2004-11-29 
Browse the content of the threads in new Window  Thread: JBL2440 on a round 300Hz tractrix horn in Horn-Loaded Speakers  5 Replies 
Hi, Tim. This is difficult question, and it is difficult in it’s abstractivnes. I really do not understand, or understand but refuse to acknowledge the validity of the word “respectable”. How valid for YOU would be a “reputation” of this driver if it...

Read the Post in new Window Read the Post in Threaded view  Post #33: ...and JBL 2440 by Romy the Cat on 2008-03-12 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
http://www.jblpro.com/pub/obsolete/2440.pdf...

Read the Post in new Window Read the Post in Threaded view  Post #12: The JBL one-inchers are no better then BMS crap. by Romy the Cat on 2008-01-30 
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"]Anyhow, what are the 2" comp drivers that ARE any good and are available comercially? I didnt go with any JBLs because I had a very bad time with the 2427 1" version, could never get any music out of it. [/quote] I would be surpri...

Read the Post in new Window Read the Post in Threaded view  Post #1: Dukane 5A540 Compression Drivers by Romy the Cat on 2007-03-22 
Browse the content of the threads in new Window  Thread: Dukane 5A540 Compression Drivers in Horn-Loaded Speakers  4 Replies 
A six year ago or so when I played with different compression drivers I bought a pair of Dukane 5A540 and at that time I was not able to find any information about them. Nowadays I was pointed out that an eBay sealer “ bayleafs” actions a pair of Duk...

Read the Post in new Window Read the Post in Threaded view  Post #9: You are preaching to the chorus. by Romy the Cat on 2008-08-17 
Browse the content of the threads in new Window  Thread: ... again on GOTO Unit drivers... in Horn-Loaded Speakers  108 Replies 
[quote user="twogoodears"]Beside I'm not a Goto eGotist and I own about 7-10 years old drivers, for what I'm concerned their sound is correct, quite lean if compared to 2440 and 2420, thicker sounding -  but very, VERY detailed, quick and musica...

Read the Post in new Window Read the Post in Threaded view  Post #6: How to renovate 2440? by Dominik on 2010-09-22 
Browse the content of the threads in new Window  Thread: JBL2440 on a round 300Hz tractrix horn in Horn-Loaded Speakers  5 Replies 
Hi,Finally, I have time to build some horn speakers and learn what is it,  bought JBL 2440 drivers and before my frame will by finish (next week) and horns will arrive I want to renovate those drivers. My question is:Can I take off that "grainy" topc...

Read the Post in new Window Read the Post in Threaded view  Post #9: Interesting competors... by Romy the Cat on 2011-02-28 
Browse the content of the threads in new Window  Thread: A Moscow setup with Horns/Lowther in Horn-Loaded Speakers  33 Replies 
Interesting, according to the link the guy moved from 4 Goto drivers to Rulited Lowther and Foxtex. I wonder if he got sick to burn his Goto drivers. I also wonder what would happen if insted all of it he use the default JBL 2440. Surly, both Goto an...

Read the Post in new Window Read the Post in Threaded view  Post #5: The invitation to Wolf von Langa by Romy the Cat on 2009-09-01 
Browse the content of the threads in new Window  Thread: The African compression electromagnet drivers? in Horn-Loaded Speakers  42 Replies 
[quote user="twogoodears"] BTW: while in Berlin, last May, Frank Schroeder performed an interesting, provoking "blind-test" using '50s and '60 Telefunken's midrange loudspeakers (22 cm diam.), comparing FC vs. PM:almost everyone in the listening ...

Read the Post in new Window Read the Post in Threaded view  Post #5: So, what is about the SOUND of the GOTO drivers? by Romy the Cat on 2008-08-17 
Browse the content of the threads in new Window  Thread: ... again on GOTO Unit drivers... in Horn-Loaded Speakers  108 Replies 
Yep, Stefano, it looks like we do have similar views about the subjects we touched. Let go back to exploring one of the terra incognito of compression driver – the sound of Goto. I would insist is that to judge sound of Goto driver from the installa...

Read the Post in new Window Read the Post in Threaded view  Post #17: What are you running? Some kind of Jackson's drivers? by Romy the Cat on 2009-08-09 
Browse the content of the threads in new Window  Thread: Experience Music Horn Installation @ VSAC in Horn-Loaded Speakers  25 Replies 
[quote user="cv"] That said, I do have is a single 160Hz/1.5" finally up and running on a compression driver, and it's a different world - stunning. Actually the results are exactly as JJ described. [/quote] The JJ, is it Jeffrey Jackson? I have no i...

Read the Post in new Window Read the Post in Threaded view  Post #12: Stereo Lab's "Ultra-fi" horns by ayebee on 2009-08-19 
Browse the content of the threads in new Window  Thread: MacondoLite in Horn-Loaded Speakers  18 Replies 
The horns that Stereo Lab make are very good, especially considering the relatively modest prices. I bought the "Ultra-Fi" version of the 140Hz horns and they are of course not completely free of resonance - JLH's and Romy's massive horns are cer...

Read the Post in new Window Read the Post in Threaded view  Post #28: Beryliam and cohearent design by zako on 2011-07-10 
Browse the content of the threads in new Window  Thread: Ultimate MF compression driver? in Horn-Loaded Speakers  45 Replies 
THE ONLY COMPANY THAT HAS ADVANCED THE DESIGN OF A MODERN DRIVER IS JBL,,, GOING FROM THE WESTERN ELECTRIC DESIGN TO THE 375,,376...PRO VERSION 2440,,2441...  TO the 2450 types..USEING COHERIENT PHASE PLUG DESIGN TOPOLIGY that unit was adapted to the...

Read the Post in new Window Read the Post in Threaded view  Post #3: A new Titans’ MF driver? by Romy the Cat on 2007-03-23 
Browse the content of the threads in new Window  Thread: Dukane 5A540 Compression Drivers in Horn-Loaded Speakers  4 Replies 
Adrian, This it truly complicated question. The Titans’ upperbass (the better one, curved, with 12” driver) is not realty HF capable and it makes a MF driver need to go all the way down to probably 500Hz (I do not know what Bruce dies in the crossov...

Read the Post in new Window Read the Post in Threaded view  Post #13: Some 2" alternatives by horny on 2008-01-31 
Browse the content of the threads in new Window  Thread: Open cell foam in horns and MF drivers in Horn-Loaded Speakers  40 Replies 
JBL 2441 also seems interesting candidate, perhaps "smoother" than 2440:Duke LeJeune of Audiokinesis recommends them as a "poor man`s TAD"Beyma CP755ND/AL 1.4"http://profesional.beyma.com/ENGLISH/pdf/descarga.php?pdf=CP755NdAL.pdfSome interesting alu...

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 #13: If less is more by Paul S on 2007-07-14 
Browse the content of the threads in new Window  Thread: Compression drivers and the “clean signal”. in Horn-Loaded Speakers  14 Replies 
then the idea of amp bypassing is relevant to the "clean signal" discussion.  But regardless of the measured voltage out vs. driver sensitivity I suspect that there is too little of something in the way of drive and control between a&n...

Read the Post in new Window Read the Post in Threaded view  Post #5: Milq’s amorphous core and Vitavox S2 driver by Romy the Cat on 2008-01-26 
Browse the content of the threads in new Window  Thread: Entry level DSET Melq? in Melquiades Amplifier  10 Replies 
[quote user="Romy the Cat"] For above 550hz you might use the same LL1627A if you wish, for MF the 200-250mA gap will be fine. Yes it would be reasonable to desire less inductance in the transformer, mean less turns but honestly I personally did not ...

Read the Post in new Window Read the Post in Threaded view  Post #79: Update , bais and high pass by DA on 2014-02-03 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
A little update on the Milq amp.After sorting  some of the problems with the amps transformers (see posts above ) .I now have two mono blocks operational that have about 700 hours ,I'm so glad hour meters were installed .Filament voltage is spot on 6...

Read the Post in new Window Read the Post in Threaded view  Post #3: Re: JBL 2440 by stuck.wilson on 2006-09-16 
Browse the content of the threads in new Window  Thread: Hmmm... the sad truth about BMS.. in Horn-Loaded Speakers  6 Replies 
the sad truth was the space, the finite funds, and the available bms pucks!  the sad truth also, i suppose,the lack of available, and sensitive horn users to bounce off of!i could probably see what your dislike of the bms stems from-- i tried to...
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