This is a different issue.
Some cutters gradually (and occassionally abruptly) shift so there is
greater level from one side of the groove wall than the other. Sometimes
playback styli twist on their own, for reasons I've yet to determine,
causing the same effect.
Consequences include a noticeable level change when
working from one groove wall of a damaged segment of a record. It may
affect other digital processing, since I'm never clear how many different
ways there are to declick, dehiss, etc., - I assume different products avoid
stepping on competitors' patents.
It is essential when using a Packburn.
----- Original Message -----
From: "Don Cox" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, June 09, 2003 6:43 AM
Subject: Re: [ARSCLIST] ELBERG MD12
> On 08/06/03, Steven Smolian wrote:
> > With lateral mono records, the purpose of the vertical switch and
> > balance control is to null out the signals, thus assuring that when
> > they are switched to lateral, they will be in balance.
> > I feel strongly that this tool is so essential to all 78 preamps of
> > modern manufacure that it should be included in the basic
> > configuration, not as an option.
> Probably true.
> However, it is easier to listen to 78s in stereo than in mono, because
> the noise is then spread across the space between the speakers, while
> the music is centred.
> That makes it easier for the brain to ignore the noise than when they
> both appear to come from the same place.
> Don Cox
> [log in to unmask]