Originally Posted by
Doc Mark
Greetings, All,
Well, yesterday, I made a long drive to check out, test, and possibly purchase a pair of 2245's that were purported to have JBL cones, and only be in need of re-foaming. I worked that trip to coincide with two eye exams in downtown LA, and that worked out well.
When I got to the sellers, he was already waiting for me, and took me in to see the JBLs. I inspected the cones, and everything else, and they, indeed, do look to be original JBL 2235 transducers, and yes, both of them need a re-foaming. I had taken along my old HP tone generator, and once it had warmed up, I swept each woofer from 200hz to around 20hz, at fairly low volume, whilst the woofers were resting on their backs. The seller had cut out the dust cap of one of the woofers, and though both speakers passed signal just fine, the one missing it's dust cap seemed a tad loose, to me. If I took my time in the sweeping, both responded just fine. However, for the one w/o it's dust cap, if I swept quickly down to around 20hz, the cone began to flop around too much. The spiders on both speakers seemed fine, and other than needing new surrounds, I believe (and HOPE) that they will be a good purchase. Because of the one speaker, the seller was willing to negotiate the price a little, so I got paid $85 for the one with it's dust cap, and $40 for the one w/o the cap.
Now, I have to decide whether to take them to Ken, at Upland Speaker Service, as I have done in the past, or buy some new surrounds and dust caps, from Rick Cobb, and give this a go. In truth, I am leaning heavily towards having Ken do the work, as he has most certainly earned my trust with his stellar work in the past. In any case, once these two 18" woofers are finished, I will have finally collected all the drivers I wanted for some JBL projects I've had in mind!!
So, with the 2245's on the bottom, I add a pair of 2123's I got from Bart, years ago, and either some 2420's that I already own and horn, or a pair of 2445's I got from Todd, again, years ago, combined with some JBL 2397 horns, and topping if all off with some 2405's on the tweeter end. My original idea was to make separate boxes for each transducer, and be able to slim things down a little, leaving the 18's in no less then 8 cubic foot boxes, and making the other enclosures to compliment the other drivers. I also have thought of having two enclosures per side, one for each woofer, and one which holds the remaining components, sized to fit slimly over the bass box. I have enough amplifiers, plus two electronic crossovers, which can be put to use making this an actively crossed system, but I also would not mind playing around with some of the newer crossover designs that I've read about here at LH.
In any case, I'm glad to have finally scored a pair of 2245's, with their proper JBL cones, and do hope that they only need a good re-foaming to make serviceable. I'll post a few photos later, of the 2245 speaks I got yesterday. I think the price for the pair was fair, and appreciate the sellers willingness to negotiate a bit on the final deal. Thanks for all those who have chimed-in over the years I've been asking about all this, and I'll keep you posted as to how things go on the re-foam. Take care, and God Bless!
Every Good Wish,
Doc
P.S. Interestingly, the connectors on these two 2245's are a bit different from one another, which leads me to believe that one was made slightly later than the other. I'll show the difference in the photos, later.