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RE: The best way to use feedback

Most Negative FBK schemes impose a time-delayed signal
onto and mixed-in with the input signal that is going thru
the amplifier.

What this means in sonic terms is what you hear--
the mixing-in with and the "mushing" (for want of a
better word) of your music being dumped into a blender
of sorts. You get a MESS-- sonically. Whether this is
harsher, brighter, or less defined and coherent, and maybe
milder and less offensive, but not at all the real music,
can depend on where and how it is applied.

While I have built several kinds of SE amps, and love
them, most of my earlier days experience was with push-pulls.

Since I operated, and serviced many a movie theatre,
I soon learned to trash the existing amps, and replace
them with Hi-Fi gear. These were nearly all of the brands
and types that people on this forum play with to this day.

They all had loop-Negative FBK. I have never found any
P/P Neg-FBK amp that wasn't drastically improved by simple
unhooking the FBK loop. NOT ONE SINGLE CASE--EVER.

Feedback schemes can correct for some things in a music
system-- I admit. What FBK schemes cannot do is playback
music or events in a convincing manner.

-Dennis-



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