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Re: [ARSCLIST] Advice for filtering surface noise
On 28/09/04, Jeff Kane wrote:
> Otto,
>
> Two observations :
>
> 1 .) If you aren't using a device that uses the stereo signal for
> noise cancellation you MUST play the records in mono or else you are
> inducing an order of magnitude more noise than you would in mono.
The ratio is root 2 - that is, 41% more.
> Whether the signal is summed at the cartridge or in the preamp (or
> after) it needs to be summed to cancel out the noise picked up by a
> stereo cartridge playing a mono groove.
Regards
--
Don Cox
doncox@xxxxxxxxxxxxxx