[Arny Krueger]

"Scott" wrote in message

On Apr 3, 9:54 am, "Arny Krueger"
wrote:

Yes I developed ABX, but no I don't rely on it
exclusively.

You developed ABX?

I built the first ABX comparator for audio gear and did the first ABX test
of audio gear.

The background is that our audio club (SMWTMS) was trying to develop a
practical methodology for doing DBTs. A series ofn equipment comparators
were built that were enhanced again and again based on experiences with them
by a committee of six club members including myself. I took the lead at one
point in the development process and produced a series of three comparators
that were successive enhancments of previously-developed concepts. The last
of the 3 could clearly be called a full implementation of the concept of ABX
testing. Additional enhancments by others resulted in the development of the
ABX Comparator that was described in detail in the Clark ABX JAES paper. I
also developed the first known relay box that could switch between two
pieces of high gain, high powered audio gear without audible switching
transients or other artifacts. The contact closure strategy for this relay
box was also described in Clark's JAES paper. I am mentioned by name in the
Clark JAES paper.