Why not just invert the 2308 and see if that makes any difference whatsoever...
Why not just invert the 2308 and see if that makes any difference whatsoever...
". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."—Greg Timbers
Does it refer to the speaker being leaned on in this shot? http://audioheritage.org/vbulletin/s...1&postcount=59
Clark
Information is not Knowledge; Knowledge is not Wisdom
Too many audiophiles listen with their eyes instead of their ears
It shouldn't make much of a difference, though I admit I never measured one that way. I am a big fan of getting the mid horn, especially one as beamy as the 2311, at or near ear level. In the 4350 it is nearly a foot below typical seated ear height. I think raising it makes sense.
Here is JBL's published vertical response for the 2307 and 2311 with 2308.
Widget
Thanks to all for the dissertations, descriptions, dissagreements and details !
These speakers are a genuine one owner prior to me. Known history along with all manuals, brochures and warranty cards. They are truly pristine imho . I have recently oiled the cabinets and can find not one flaw, chip or discouloration, anywhere on the woodwork. The baffles are a slightly different coulor and do show some minor scuffs here and there.
The drivers are all original as described by the previous owner. They were sent to Jands in Sydney, the JBL agent, some time ago for service. I am awaitng the paperwork to see exactly what was done. Apparently the cost was not small.
As for my comment on "palpability" etc, I likely did not make the context clear. Coming from ownership of several high end speaker systems, the latest being Usher AC-20's with ceramic mids and highs, I find the JBL's less able to produce the pinpoint accuracy of the midrange. This may even be a good thing overall and more of a criticism of the Ushers than the JBL's. Personally, I dont find it a major issue and am blissfully happy with the sound they produce.
Considering my coments are based on a "whole" three weeks of ownership, I may well revise them completely in time to come. With upgrades in amplification, room treatment and positioning, the issue may even dissapear completely
Yo, 'nutz...
Thanks for the added detail. I'll be very interested in that refurb info, too. The 2202A and 2440/2308 combine together awfully darn well to cover that frequency range you are talking about. Nearly seamlessly, actually. However, the 2440 does benefit from installing a new diaphragm after all the years - many here have done it, and note the improvement. I wonder if that was on Jands' to-do list? Much of their cost charges might have related to remag of those alnico motors - I hope they stuffed a new diaphragm into the 2440!
Otherwise, the woofs should have all been reconed. That would help the 2202A.
Any chance you can post some pics? We love to oogle these.
Combing off the Usher's will be a change. But, you should be aware the larger 43xx series are not "plug-and-play". They require a bit of set up - tuning to the room.
It may be you are not accustomed to the big low-end of a "real" speaker and so the MF, HF and UHF are under-balanced (gain wise) for your taste. Working with the amp(s) output(s), using differential gain, you could achieve a balance more to your liking.
Anyway, I'll be anxious to learn what Jands' has done. Maybe there are a few tweaks left...
Oh - and try inverting that 2308 lense. It should elevate the HF dispersion pattern about 3" is my guess. No sense directing it down, now is there...
Heres the pics so far ........
And yes, the rugs have been removed and system has been considerably tidied up since
Cheers
'Nutz
Thanks Bo, just tried inverting the lens and a definite improvement !
As for the full range issue, I agree. I really thought I knew what bass was - how wrong was I ...ha
Even at low levels, these babies rumble and punch like few others I have heard. I have adjusted the gain and input impedance on the MA-24's to blend them with the bass levels more accurately. This definitely helped, especially given the passive preamp/attenuator I'm using needs to see at least 100k. I run the MA-24's full range and it now works really well, to my ears at least.
They also need toeing in to establish a more stable center image of course, and that's on the to-do list. The wife helped last night to get some insulation material under them as a reviewer was coming out today to shoot some pics. I thought the blankets looked a little "low rent" ....
How many guys have a wife who not only indulges their passion but is willing to heave monsters like these around after a hard days work ? Bless her cotton socks !
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