[78-L] EQ - why bother? - was: stereo/mono and noise reduction

[david.diehl at hensteeth.com]

 >I, too, have noticed that almost every kind of electronic componentintroduces its own EQ pattern to the music - cartridges, tape decks,amps, speakers, tuners, headphones, mp3 players, you name it, they allapply their own warped image of response curves. To me, that begs the question: Why bother with any kind of EQ settings,especially trying to recreate acoustics, or RIAA, scroll Victors or ARC78s were? Seems pretty pointless to me because the playback systemsare going to readjust it anyway, for better or worse.
>Rodger
Sounds as if somebody may be studying Ecclesiastes a mite too close ;-)
With the 45/45 stereo system the moving magnet in each channel responds on a plane which is out of phase with the lateral signal of a 78. That means that there is a significant amount of vertical noise to which a true mono lateral cartridge would be immune. Picture a nice big "X" wiring the two hot leads together and the two ground leads together combines the current from the four axes into left > and right < halves of the original X. (The terms 'hot' and 'ground' are misleading-both are equally active.) 
Reversing 
one 
of 
the 
channels 
results 
in 
\/ 
and 
/\
. 
It's a real world application of those basic Physics problems where we had to analyze a force acting through a vector by breaking it down into it's horizontal and vertical components.
Now students, for your homework tonight: use a Q-tip. 
DJD

Visit the Blue Pages: the Encyclopedic Guide to 78 RPM Party Records
http://www.hensteeth.com
-----Original Message-----
From: Rodger Holtin [mailto:rjh334578 at yahoo.com]
Sent: Monday, November 7, 2011 03:52 PM
To: '78-L Mail List'
Subject: Re: [78-L] EQ - why bother? - was: stereo/mono and noise reduction

The original question was how and why does A+B mono work to cancel noise, but lacking an answer to that, we've drifted off into finding a tuner that will apply A+B - which I don't really need. This current reply from Mark, however, does bring up another nagging point." Sansuis were to shrill, unnatural. "I, too, have noticed that almost every kind of electronic component introduces its own EQ pattern to the music - cartridges, tape decks, amps, speakers, tuners, headphones, mp3 players, you name it, they all apply their own warped image of response curves. To me, that begs the question: Why bother with any kind of EQ settings, especially trying to recreate acoustics, or RIAA, scroll Victors or ARC 78s were? Seems pretty pointless to me because the playback systems are going to readjust it anyway, for better or worse.RodgerFor Best Results use Victor Needles..--- On Sun, 11/6/11, Mark Bardenwerper  wrote:From: Mark Bardenwerper Subject: Re: [78-L] stereo/mono and noise reductionTo: "78-L Mail List" <78-l at klickitat.78online.com>Date: Sunday, November 6, 2011, 10:13 PMOn 11/6/2011 9:49, Michael Shoshani wrote:> On Fri, 2011-11-04 at 20:41 +-0000, bradc944+AEA-comcast.net wrote:>> +AD4 Also, as far as tuners that can drop to mono on FM, if you hit your local Goodwill/Sally-Ann/OxFam on a regular basis, you can still find FM tuners that will drop to mono upon selection (stereo-defeat). I have a few in the house besides my Marantz 2265 that is the main studio system that have stereo-defeat, and while not the all-tube-only-tube holy grail, still sound pretty damn good.>>Marantz has the best sound as far as I am concerned. Older Fischers were good too. Sansuis were to shrill, unnatural. I have a fairly good 70's era Sansui which is better than the later ones. I wish I still had the Marantz I had before this. It died of bad volume potitis. Also had a Harmon Kardon for a while but it was a shop hog.-- Mark L. Bardenwerper, Sr. #:?)Technology, thoughtfully, responsibly.Visit me at http://citroen.cappyfabrics.com_______________________________________________78-L mailing list78-L at klickitat.78online.comhttp://klickitat.78online.com/mailman/listinfo/78-l_______________________________________________78-L mailing list78-L at klickitat.78online.comhttp://klickitat.78online.com/mailman/listinfo/78-l