John Warren Posted November 1, 2002 Share Posted November 1, 2002 djk- 1. I was quoted a price of $428 for a new pair of 2404H (3.5kHz and up) tweeters. Is this reasonable price? If not, can you recommend a supplier? 2. Can you comment on the differences between the EV ST-350A and the JBL 2404H. 3. Can you recommend alternatives to the 2404H? jw Quote Link to comment Share on other sites More sharing options...
John Warren Posted November 8, 2002 Author Share Posted November 8, 2002 back to the top Quote Link to comment Share on other sites More sharing options...
Northeastern Illinois Posted November 8, 2002 Share Posted November 8, 2002 John, Here in the Chicago area, $428 per pair would be a good price for a brand new pair from any of the JBL distributors. Based on a prior posted tip from you on the Klipsch site, I investigated the 2404H along with the EV ST350A, and elected to go with the JBL unit. I purchased a single used unit this summer for $170 (included an exorbitant $20 freight) from Jammin Jersey out of California. A pair would have thus run $320. In addition to DJK, I suggest you write to Tom Brennan here in the Chicago area, as I recall that he has some experience with the EV unit. Phil P.S. I attempted to send you this via Email, but the Email was returned as unaccepted . . . any reason? Quote Link to comment Share on other sites More sharing options...
John Warren Posted November 9, 2002 Author Share Posted November 9, 2002 Phil-I've never done a side by side with the two tweeters. I'm using a borrowed pair of ST-350s that I have a option to buy. The pair of 2404Hs that I once owned have been sold. So it's either buy the EV units ($150) or the JBL units ($438). I think the EV units sound reasonable but my recollections of the 2404Hs were that they sounded better. Quote Link to comment Share on other sites More sharing options...
Q-Man Posted November 9, 2002 Share Posted November 9, 2002 John, I have a pair of the 2404H tweeters. I am going to try them with the altec mid. driver and horn this weekend. If I decide not to use them, I'll sell them to you for $300.00. If your interested, I'll let you know my decision. Quote Link to comment Share on other sites More sharing options...
Q-Man Posted November 9, 2002 Share Posted November 9, 2002 This is what I measured with a Rat Shack sound level meter with the a test CD. Freq./kHz K-77 JBL-2404H University HF-206 5 82 82 82 6.3 84 86 85 (peak at X- over point) 8 81 81 81.5 10 74 78 73 12.5 74 76 66 16 66 71 - The 206 sounds quite nice but dies too early. The JBL is nicer sounding then the K-77 and you can hear the highs a little clearer and louder as the SPL levels show. The Klipschorn bass horn had an average measured around 84 db. The K-400/K-55 had an average around 81 db. The Altec 288/805b had an average around 83db. You notice that the altec is louder, not to mention nicer sounding. But, my point is that I think the midrange should be louder to match the output of the bass horn. Looking at the SPL readings of the K-77, shows that the tweeter isn't keeping up. The JBL does a better job of it. Quote Link to comment Share on other sites More sharing options...
Q-Man Posted November 10, 2002 Share Posted November 10, 2002 John, I'm going to keep the JBL tweeters. They are a nice improvement. There is a guy on ebay selling six of them,check it out. Item #920195011. Would you like to split them with me? Quote Link to comment Share on other sites More sharing options...
John Warren Posted November 10, 2002 Author Share Posted November 10, 2002 Q-I knew that you were going to like them when you heard them, they are much better than the little Avedon tweeter. Thanks for the offer but I'm going to pass on the ebay drivers, I've had both good and very bad results with drivers on ebay. Pro drivers tend to get abused especially tweeters. New diaphragms for the 2404 are pricey too. What are you using for a network with the 2404H? jw Quote Link to comment Share on other sites More sharing options...
JohnA Posted November 10, 2002 Share Posted November 10, 2002 Q, Which crossover are you using in the test above. The Type AA is designed to do just what the K-77 is doing. The network peaks around 6k and falls with rising frequency. Was the K-77 the AlNiCo version? Quote Link to comment Share on other sites More sharing options...
Q-Man Posted November 10, 2002 Share Posted November 10, 2002 I was using Al's ALK network. My only options here are to use one of the various Klipsch networks that I have. I wouldn't have a clue as how to design my own. I was using a K-77M. Quote Link to comment Share on other sites More sharing options...
JohnA Posted November 10, 2002 Share Posted November 10, 2002 I'm a little surprised at a -M falling off like that at higher frequencies. The Type AA network makes that worse, too. I expected little output above 15k and that's what you got. John Quote Link to comment Share on other sites More sharing options...
Q-Man Posted November 10, 2002 Share Posted November 10, 2002 I guess it's more network controled then I thought. I thought the tweeter rolled off on it's own. I should have realized it was the network, since all three tweeters drop off in the same relation to each other. I think I'll try my university network and see what I get. I may not be able to try the University with the K-77. I think it crosses over too low for the 77. I'll have to check first.I don't remember where it crosses to the tweeter , and I don't want to fry the tweeter. Thanks for your input. Quote Link to comment Share on other sites More sharing options...
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