Hah! No problem Steve. It's all good info being exchanged.
Interesting. I always enjoyed my 2344/2425H combo in the 4430. But I never really beat the unholy crap out of them like some folks do who complain about their strident howling.
I'm kind of convinced that the 2435 only works well on the Array horn.
I have yet to try the 2450SL on the PTH1010 (I'll be trying the 476Be as that is all I have on hand at present).I ran that combo for about six months in my living room. Pretty nasty actually.
That has also been my experience (H9800). When put horizontally it is also quite good, but the directivity tends to collapse more rapidely above 10khz (due to the poor phasing plug of the 2435).
The array horn is really close to a 2344...
I can fix that if you want, lets to a swap
Hello 4313BI'm kind of convinced that the 2435 only works well on the Array horn.
I am pretty happy with it on the PTH1010. Shame you can't get them anymore. Takes a couple of notch filters and you have to cross them high so great for a 3 way not so good as a two way. That was always the problem with any of the PT waveguides, high crossover point. Granted not as good as the Array but still quite listen-able.
Hello PosThe array horn is really close to a 2344...
Yes it is you can drop them right in the same baffle cut out.
Rob
"I could be arguing in my spare time"
These JBL PT waveguides all seem good down to around 1300 Hz. I don't see how one can use them with a fifteen the way JBL used the 2344 with the 2235.
Have either of you played around with terminating the sides using a round over (~ 2.6 inches for 1300 Hz for example)?
I'm not sure of the exact reason JBL did away with the 100 x 100 guides. Probably not enough call for them in SR.
Yeah, I really don't know which came first, the 435Be on the H9800 or the 2435 on a waveguide. Doug wasn't real keen on discussing the phasing plug issue and I didn't care enough to press it. We basically left the discussion at "it works fine on some horns/waveguides and not others".
I was toying with the idea of using the PT waveguide as the throat of a big horn, like the two-part assembly of some of the recent JBL consumer biradials. The rectangular 100x100 would probably be the best candidate for this, as it is really short and does not enforce much "shape" on the veritcal plan (contrary to the rectangular 90x50).
The big horn could be a simple conical or radial, and its geometry would not be really critical: the "throat" (the PT waveguide) would handle the critical part, and the rest of the big horn would only serve to maintain directivity lower.
While not really germane to where the thread has gone, the 2425 drivers where used with a PAS 15" to create the coax that was the core of the Urei "B" series studio monitors. So I'd say they can be fully suitable for HiFi uses.
http://www.youtube.com/watch?v=J1qsLe5Eokg
eso
30Hz Bass Horns/K151, Custom mid bass & midrange horns/Cogent DS 1428 & 1448 field coil drivers, Fostex T925a tweeters.
The 2425 was used in the DD55000 Everest along with an E145 variant and a 2405.
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