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Old 29th May 2007, 05:46 PM   #891
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Quote:
Originally posted by mikelm


moving where ? - I do not get your point

In moving, wheter left, right, forward, or backwards, you'll be altering the arrival times of different instruments.
It'll effect the sound.
You might prefer the mix at one location or another.
Different 'sweet spots' for different tastes.

But then, some won't notice or care.
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Old 29th May 2007, 07:00 PM   #892
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No Bob, it was NOT Bongiorno, who first developed the complementary differential input stage. First, there was Jon Iverson of ElectroResearch and me (then designing in the Ampex audio department) who did it in 1968, quite independently of each other. We did NOT publish our efforts, because, in my case, Ampex would have patented it, and in any case, it was a trade secret.
You will find that the FIRST mention of the complementary differential input stage as an ad by Southwest Technical Products in 'The Audio Amateur' about 1972, fully 4 years after I got my amp running, and Jon Iverson has his design developed as well.
I was told by Daniel Meyer, of Southwest Technical Products, who independently developed the complementary differential input stage after we did, that HE showed it to Jim Borgiorno, when Jim Borgiorno showed him the DYNA 400 circuit that he had worked on. You should contact Daniel Meyer about this, if you wish to question this statement.
I went on to develop the self biasing complementary differential JFET input stage in 1971, and that is was I have used since 1971, to this day. I built a 2000W complementary differential power amp with balanced current outputs for Ampex research in 1969, many prototype complementary differential bipolar input power amp prototypes at Alembic Inc in 1970 for the Grateful Dead, and later in 1973, I built more power amp prototypes for the Grateful Dead using by complementary differential jfet input stages and single sided complementary jefet input stages. This is when the Levinson JC-2 was designed as well, and the patented pre-preamp input stage, the JC-1 was first introduced at the NY-AES in Oct 1973.
 
Old 29th May 2007, 07:32 PM   #893
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This thread has caused the moderators far too much work and our patience has run out. The following actions have been taken:

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