Wow, Greg...Thanks for the education.
It is extremely generous of you to take the time to post here with "from the Designer's Desk" info.
It's very much appreciated.
Wow, Greg...Thanks for the education.
It is extremely generous of you to take the time to post here with "from the Designer's Desk" info.
It's very much appreciated.
Edgewound...JBL Pro Authorized...since 1988
Upland Loudspeaker Service, Upland, CA
Holy crap!
GT- you have a unique way of saying it all. We BS each other for months on end to no real avail on certain subjects. You make a single post and "POOF"- issue is swept under the rug and we now work with facts- not opinions. If you only knew how beneficial it is to us....all I can say is "THANK YOU, SIR !!!". However, don't let this cut into making more kick-butt speakers!
Travis.
moderator: Can we put a copy of Greg's post here ??
You nailed it dude! A little of his time can clear up a whole lot of other time...Originally Posted by hapy._.face
I suspect we are starting to see where that "Moderation Frustration" was coming from with respect to the endless threads, arguments, speculations, etc...
Question? Answer. Slam dunk! He scores!!! Game over man! Game over...
Techbot must be online right now. Looks like it's been handled already.Originally Posted by hapy._.face
reminded me that the 116A was also in the L19 and the 125A from the L40 was similar to the 127A so these speakers should probably have a recharge if they were overdriven hard in prior use?Originally Posted by gtimbers
That's what I call destructive testing. Necessary I'm sure, like crash testing. Do you ever have any photos of what any of these big woofers look like after a test session like that? I don't get out to enough big concerts to see drivers fail like that.Originally Posted by gtimbers
Thanks Greg, Giskard, and Techbot for helping us understand the physics behind all this.
Regards,
Bart
an 'ol biochemistry major, UCLA '77
Thank you Greg, for the great info! I have been using JBL 2441 comp drivers since 1979-80, and they always did and still do sound phenomenal. Matter of fact, its my fav comp driver, to me, better than anything else.Originally Posted by gtimbers
Nice to have serious info on the Alnico subject straight from source!
scottyj
Originally Posted by scott fitlin
...changes my whole perspective on AlniCo. I'd read numerous articles- yet Greg puts the cigar out in a few choice paragraphs. still so cool.
I don't know if Mr. Timbers will revisit this thread, but if he does I am really curious about how neodymium fits into the discussion.
I'd guess that it is harder to demagnetize, but how does it behave with regards to dealing with back EMF and do it's inherent properties have any sonic consequences?
Widget
Gosh, I work late and look what I miss!
Time to thank Mr. Timbers again, not only for posting here but for answering my specific question (post #17) in the first sentence. Nine words and my ignorance is put to rest. Spooky, but is this man good or what?
All the rest of the post did for me was enlighten, entertain and demystify all the issues I ever and never pondered about the subject.
I am beginning to look at the world in a different, simpler way. He is Greg Timbers, and I am not!
Again Grateful, Clark in Peoria
Information is not Knowledge; Knowledge is not Wisdom
Too many audiophiles listen with their eyes instead of their ears
Ive always said Alnico sounds best, and you can hear a difference from Alnico to ferrite to neodymium!Originally Posted by hapy._.face
scottyj
I`d like to hear what Mr. Timbers has to say about this also!Originally Posted by Mr. Widget
I find neo has quite a different tonal sound from either Alnico or ferrite. I`m still using my favorite JBL 2441,s so I guess thats says what my preferences are.
And I had the TAD 4002,s on the horns again this winter, still didnt like em, not sweet like the JBL, not at all.
scottyj
I couldn't say it better and it's what I would want to say ( I'm not much of a word person so my posts can be choppy)Originally Posted by Ducatista47
I spoke to Bill from GPA about this recently. He says a ferrite remag is not necessary and an alnico recharge is recommended only if overdriven.
All the alnicos I've acquired on Fleabay are recharged since it is not possible to know their history.
Anyway, I recenlty read that since HF comprssion drivers are not driven with big power, that a recharge for these alnicos is very rarely necessary.
I suppose this is logical.
Any thoughts on this?
totally agree with that due to coercitive force ratio alnico vs ferrite and magnet circuit design
So do we now have it on good authority that AlNiCo sounds better? Did the value of my all AlNiCo L200/300s just go up? Is this perhaps part of the difference I hear between these and my 4430s? (I've always thought that the L200/300s sound more natural. (All of the AlNiCo components were recently recharged and never played "loud" since that time.)
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