What were the Fs and SPL eff. on each?The JBL 2235 has a mass ring, without the mass ring it is the 2234.
When I last heard the Snell A/III it was up against a wall so I doubt I got much of the rear tweeter effect. Interesting observation, so the 275 Hz does seem high for a floor firing woofer. May explain some of Gravesen's observations about the bass/midrange not integrating quite as well as the mid/treble.
23Hz & 2.1% for the JBL 2234, 20Hz and 1.3% for the 2235 (ouch).What were the Fs and SPL eff. on each?
Surprising 50 grams of added mass (1/3 MMS) only drops FS by 3 Hz.
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Wow, that's a big eff. price to pay for 3 hz! 😱23Hz & 2.1%, 20Hz and 1.3% (ouch).
Dynaudio built (and still build?) heavy moving units, for instance 17cm woofers with a 75mm voice coil. Along with Variovent flow damping and strong amplifiers they seem to work.
I have a pair of early model type A speakers, 10" woofers. When I got them the surrounds were shot so I had them re-coned. Unfortunately the guy who did the work removed the resin and didn't put it back. He told me he had re-coned more than one set of these woofers. Now the bass is noticeably weaker. Any ideas on how I can fix the problem?
TS parameters of the earlier/original and the reconed version are needed to figure out the differences and the frequency response measurement would have revealed further. If the new surround appears much stiffer than the original, then one could try an attempt to have another surround exchange. But first measurements to be sure.
Sorry to go off topic but I've noticed people have R.I.P under their user names. Are they really not with us anymore or just banned?
Speakerdoctor's American flag with "R.I.P" underneath it is his avatar "statement", not an indication of actual death under the last year of presidential change.Sorry to go off topic but I've noticed people have R.I.P under their user names. Are they really not with us anymore or just banned?
I saw it here or on the PE forum, but he had retired from business, and I believe sold his web address.
As my mother used to say, "it's never a good time".
At least, as with tinnitus, sreten, and others, we still have his thoughtful posts and explanations from his years of experience.
They are all alive within us, as long as we remember them.
Sorry to spring it on you like that,
David
As my mother used to say, "it's never a good time".
At least, as with tinnitus, sreten, and others, we still have his thoughtful posts and explanations from his years of experience.
They are all alive within us, as long as we remember them.
Sorry to spring it on you like that,
David
So much generosity on display here, and when we lose one of the regulars it is felt directly. Fortunately new members arrive and bring their own good stuff to the table, but an old timer could put this thread to bed in one post. Search AR-1.
That's right, I'm old.
That's right, I'm old.
Cal,We don't add the RIP without indication of a passing.
Good to know, and my apologies for my incorrect assumption, I was also unaware of the Memoriam room. Sorry to hear of Carl's (and so many others) passing.
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