I meant to say "noise floor OR peak level" in the second paragraph.
----- Original Message -----
From: "Tom Fine" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, September 07, 2012 8:00 PM
Subject: Re: [ARSCLIST] Details on vinyl to digital re-mastering
> Well, ultrasonic cleaning does work (on plastic, I think). The question is, does it clean anything
> that a brush and solution won't clean AND does it pock, pit or other wise damage the vinyl? I'd
> think it's possible for an ultrasonic cleaning system powerful enough to dislodge dirt stuck in a
> record groove to damage the groove wall, which is uneven by nature. But I'm no expert in
> ultrasonic cleaning.
> The previously mentioned audio magazine writer also likes the "vinyl demagnetizer" machine, but no
> one has yet shown any scientific proof that any vinyl carries magnetic fields strong enough to
> effect the internal mechanics of any phono cartridge. For what it's worth, I took a record and
> exposed it to a bulk-erasing cycle on an old Ampex professional tape-eraser. I could hear no
> differences between before and after. I also couldn't measure any as far as noise floor of peak
> level. The magnometer I have couldn't measure a magnetic field on the vinyl before or after, so I
> suspect if there is any inherent magnetism in the black particles in the vinyl (the theory
> proposed by the expensive accessory's manufacturer), it's not a strong enough field to effect
> cartridge behavior.
> -- Tom Fine
> ----- Original Message -----
> From: "Matthew Sohn" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, September 07, 2012 6:53 PM
> Subject: Re: [ARSCLIST] Details on vinyl to digital re-mastering
>> >Am I the only person here who would see any 'glowing review' from
>>>this guy as highly suspect?
>> I expected a reply such as this.
>> I was more interested in replies from people who had actually used the unit.
>> The concept certainly is interesting..
>> -Matt S