Quote Originally Posted by Woofer View Post
Yes, do look at the above pics.
…. and be aware, a JBL 2402 is the same as a JBL 075. Just a different foilcal [badge] and paint.
The ferrite 2402 will have an 'H' suffix after the model number. e.g. JBL 2402H
Thanks so much for the valuable help to everyone..

I have a ferrite 075 then, no black paint at all, only black paint on the rear dust cap.(but no rear suffix 'H' after the model number , and only 'Model 075'.) Impedance 8 ohms. and Serial Number 70325.

Regarding the 15's, I'm totally confused :-(
I looked up the frequency response graphs of both the JBL 2235H and the JBL 330757-001's (that I bought as replacement woofers) and I could not see much difference in the graphs at all. :-((

The bottom end (on both) at around 20hz does not seem to kick in until 25hz or so, at negligible levels, and then more reasonably at 85db at 25hz or so (on both) and then they both jump to 90db (or a very more respectable 98db in the 330757-001's case.) at around 40hz.

I see that the response of the 330757-001's is less linear and more peaky, and I recognise that the later-manufactured 330757-001's are generally used as low-powered PA sub-drivers, but I can't see much difference at all in the specs, or am I reading them incorrectly? Are the JBL 330757-001's so inferior to JBL 2235's??

The 330757-001's seem to have a really solid bottom end, and they're certainly defined and tight (I'm driving them with a 300wpc rms Bose power amp, and at concrete building-shaking levels:-)

The horns seem a bit washy and indefinite and the mid-range is a bit rubbish and ill-defined.. Recorded speech does not sound natural, and the top end is definitely absent..
I can't understand how listeners could say that without the 075 tweeters, that they are listenable or usable at all.. Even with the horn crossover cranked up, crash and ride cymbals and hi-hats are almost non-existent.. :-(

But I suppose I'm maybe trying to compare the sound of my 2 x pairs of control 5's and control 5 sb, and the 4320's are a generation older and possibly a bit lacking in comparison.
But they look really good in their new textured grey livery, and their cleaned black front cloths and lovingly polished escutcheon plates, and I shall persevere !!
Of course, the wife says that the 4320's are far too big.. but I realise that no-one ever said that life was going to be a bowl of cherries, so I just don't listen.. :-))

thanks to all.

ritchie
bg