[R-390] Audio "Nuts" and Langford AGC. Mod.

[jlap1939@yahoo.com]

Hello Friends,

Wanted to comment on the audio craze, and its'
implications. Several commented on this in the
reflector, and I had a few personal comments as well.

It seems to me that my receiver mon. is ideal, and
that the sound is great for its' purpose. The point in
good communications is highly readable content, and
Hi Fi has little purpose in voice and code
communications. My unit passes from about 150 or so,
to a few thousand, and it sounds GREAT. At the
present,
it is on the SP 600, and I can read most anything,
including hard to hear pirates..(But not as good as
the 390, make no mistake....)

Non the less, it is nice to have a "big" sound, and
I know many are seeking this, as well as the "warm"
sound achieved with real high quality  tube gear
including new items. In checking material in various
"archives" you will find a lot of suggestions, and I 
believe it remains a personal choice. These range from
the professional additions to build it yourself
efforts.  Much has been written about Sennheiser, 
Sherwood, Koss ESP, Studio grade whatever;

 
AND some that improve the response over TIME..like the

Langford (and Mish) AGC setups, and the Sherwood
unit, which are, it seems, highly regarded. (There are
many other systems as well) I only mention a few I was
reading about last night...(archives)...

The improving for personal hearing and reading
of the SIGNAL would seem to me to be the best way to
go...

My concern is on the radio and the range of freq.
that it actually passes. (Many even use the term,
"recoverable" audio,which leaves a lot to be desired
in terminology). The fact is that you cannot "recover"

freq. that are not there in the first place, and the
known specs. of the r-390 series would suggest that
the range of freq. passed is very small...(Anyone know
correctly, that range?) I do know that a nice "hi
fi" system seems to make the sound "nicer" but could
it be the result of either more "smoothness" in loud
areas or just "bigness" of sound? I simply don't see
how you can get freq. resp. that was never there to
begin with..(Maybe it is also the result in some
cases,
of "adding to" the sound...) 

On the other hand, if you can really obtain a "syncro"
method, then you are helping the signal, as is the
case with really nice and correctly designed AGC
systems, some of which are quite elaborate. (Yet I
have
never really complained in my own mind, about either
the 390 or 390a). Both are great TO ME, in AGC
action..
The 390 in particular due in part to the improved
sound with the center response position available...

Sorry(really), that this is so long, so I will end by
asking for comment, and saying that for me being able
to read well, any material I hear, is my main hope
when I listen. When I want "big" sound, I go and
listen to my (expensive, for solid state) stereo..

Regards, John




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