Excellent information, Corey.
I can't seem to access the archives,
so, many thanks.
--- On Wed, 2/29/12, Corey Bailey <[log in to unmask]> wrote:
> From: Corey Bailey <[log in to unmask]>
> Subject: Re: [ARSCLIST] Fw: Re: Fw: [ARSCLIST] Phono Preamps
> To: [log in to unmask]
> Date: Wednesday, February 29, 2012, 2:53 AM
> Hi Ron,
> This subject came up about a year ago although it may be
> hard to find in
> the archives.
> If you are thinking about transferring flat and applying
> post EQ in the
> digital domain, you might consider applying the low
> frequency compensation
> in the analog domain and allowing everything above the
> turnover frequency
> to be un-equalized. This allows for adequate digital
> headroom and also
> allows for processing the “enhanced” high frequency
> content before
> applying EQ to everything above the turnover frequency. This
> was a
> suggestion from the last discussion when I asked a similar
> question. This
> approach works quite well as it allows for restoration
> processing without
> audible artifacts.
> The setup I tried this with is:
> A modified Dynakit PAS3 preamp routed through a GML 8200
> equalizer. The modification to the PAS3 was simply removing
> the NAB EQ
> section from the “Tape Head” input and adding 47K input
> termination which
> allows it to be a flat preamp when using those inputs. The
> phono input was
> left stock with the RIAA EQ in place. The cartridges are
> Moving Magnet.
> Corey Bailey Audio Engineering
> > For another approach:
> > Any thoughts about using a completely flat preamp
> > fed into a computer via the M-Audio AP192K card
> > and then equalized with software such as the Diamond
> Cut DC7?
> > Off-line responses also welcomed.
> > Thanks,
> > --Ron