shepjk01 Posted September 1, 2012 Share Posted September 1, 2012 In the never ending quest of speaker upgrades I have decided to switch up the top end in my dbb's. Right now I have a jbl2485j mated to a fc260 wooden tractrix horn covering from 400hz to 5800 then a jbl 2404 the rest of the way. I'm pretty happy with the combination, but I always want to try new combinations. I was thinking of going to a 2 way setup with a faital pro hf200 on an eliptrac horn and raising the crossover point to 600hz. I have owned two pair of titanium drivers(jbl2445 & evdh1a) I did not care for the sound of either in a 3 way setup,but have heard great things about the faital. I preferred the jbl2485j to both the titanium drivers I owned.Those who have had a 2way and 3 way setup or used the faital driver what are your thoughts. Would I be better off sticking to a 3 way and trying out a jbl2440 or 2441 with the eliptrack or going the 2 way route with the eliptrack and faital. Thanks in advanced for the help. Quote Link to comment Share on other sites More sharing options...
Johnny's Jill Posted September 1, 2012 Share Posted September 1, 2012 I really like the Eliptrac with the B&C DE-85, I had the Faital and it was good 2-way but the B&C seems to have better clarity in the HF. Craig Quote Link to comment Share on other sites More sharing options...
djk Posted September 1, 2012 Share Posted September 1, 2012 Yeah, isn't that big 10dB peak centered at 16Khz wonderful? It's resonating so much that it shows in the impedance plot too! http://www.bcspeakers.com/PDF/PRD/DE85.pdf Quote Link to comment Share on other sites More sharing options...
Johnny's Jill Posted September 1, 2012 Share Posted September 1, 2012 Yeah, isn't that big 10dB peak centered at 16Khz wonderful? Yes quite nice. I would like to put a big thanks out to DJK for his inspirational and helpful comments. You are a real class act, keep up the fine work. Craig Quote Link to comment Share on other sites More sharing options...
Guest " " Posted September 1, 2012 Share Posted September 1, 2012 Yeah, isn't that big 10dB peak centered at 16Khz wonderful? It's resonating so much that it shows in the impedance plot too! http://www.bcspeakers.com/PDF/PRD/DE85.pdf +10db a 16khz is probally OK......most of use can't hear much above 12khz anyway. Quote Link to comment Share on other sites More sharing options...
djk Posted September 2, 2012 Share Posted September 2, 2012 The point is that it is a resonance. I would rather have to boost a driver with a cleaner, although lower output. While I may not hear much above 12Khz either, a resonance will cause intermodulation with lower sidebands that I can hear. Quote Link to comment Share on other sites More sharing options...
shepjk01 Posted September 2, 2012 Author Share Posted September 2, 2012 DJK, I know you have heard many driver combinations. What would you recommend either a 2way or 3 way setup and what horn/driver combinations crossed at 600hz from the bass bin to the mids. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted September 2, 2012 Share Posted September 2, 2012 Our testing shows both drivers offer very similar performance. Here is the side by side done by ALK engineering. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted September 2, 2012 Share Posted September 2, 2012 Here is the graphs from Faital pro and B&C on the same scale, if you look at B&C graph you will notice its 5db per division. Both drivers perform extremely well. Dave Quote Link to comment Share on other sites More sharing options...
shepjk01 Posted September 2, 2012 Author Share Posted September 2, 2012 On the response graph it looks like both driver are down 6-10 db above 6000hz. Wouldn't some sort of eq be required above 6000hz if using the fatial in the eliptrac? Quote Link to comment Share on other sites More sharing options...
Guest David H Posted September 2, 2012 Share Posted September 2, 2012 Here is a graph Bob Crites sent me recently the Green trace is the Eliptrac with the HF-200 horn no eq. Obviously these were taken with some degree of smoothing. Dave Quote Link to comment Share on other sites More sharing options...
justinsweber Posted September 2, 2012 Share Posted September 2, 2012 Subjectively, I like the DE85 over my HF200s, enough so to sell the HFs in the coming months and buy a 2nd set of DE85s. If I didnt have the resources to do, I would happily live the 1 of each set. Im not sure if Ill hear a diff in 3 way. in 2 way setup the DE85 was more relaxed. It would be a great shoot out between the JBL Faital and B&C. Quote Link to comment Share on other sites More sharing options...
ZombieWoof Posted September 2, 2012 Share Posted September 2, 2012 I'm about to use the B & C DE750TN-16 with my ElipTrac's Quote Link to comment Share on other sites More sharing options...
Guest David H Posted September 3, 2012 Share Posted September 3, 2012 ALK just sent me the graph of the DE-750 today. Quote Link to comment Share on other sites More sharing options...
ZombieWoof Posted September 3, 2012 Share Posted September 3, 2012 so what do you think about how that plot looks Dave ?? Quote Link to comment Share on other sites More sharing options...
Guest David H Posted September 3, 2012 Share Posted September 3, 2012 so what do you think about how that plot looks Dave ?? Exceeds my expectations. Dave Quote Link to comment Share on other sites More sharing options...
djk Posted September 4, 2012 Share Posted September 4, 2012 "so what do you think about how that plot looks" The JBL 2431/32/35 all have the same basic parts other than the diaphragm. The titanium (32) measures the best and sounds the worst. The aluminum (31) measures not quite so good but sounds better. The beryllium (35) doesn't measure as good as the aluminum, but sounds the best of the three. Go figure. Quote Link to comment Share on other sites More sharing options...
shepjk01 Posted September 4, 2012 Author Share Posted September 4, 2012 where would you rank drivers with phenolic diaphragms? "so what do you think about how that plot looks" The JBL 2431/32/35 all have the same basic parts other than the diaphragm. The titanium (32) measures the best and sounds the worst. The aluminum (31) measures not quite so good but sounds better. The beryllium (35) doesn't measure as good as the aluminum, but sounds the best of the three. Go figure. Quote Link to comment Share on other sites More sharing options...
djk Posted September 4, 2012 Share Posted September 4, 2012 I like them for midrange, I really like the Altec 290. I like the K76 phenolic better than the polymer, haven't heard the titanium. Dislike the K77, I think the problem there was the phase-plug, Quote Link to comment Share on other sites More sharing options...
Guest David H Posted September 6, 2012 Share Posted September 6, 2012 The JBL 2431/32/35 all have the same basic parts other than the diaphragm. The titanium (32) measures the best and sounds the worst. The aluminum (31) measures not quite so good but sounds better. The beryllium (35) doesn't measure as good as the aluminum, but sounds the best of the three. Go figure. Can't argue with that. The flattest response certainly doesn't mean the best sound, however it is a good place to start. Dave Quote Link to comment Share on other sites More sharing options...
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