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Re: decent portable mic pre with optical out

Subject: Re: decent portable mic pre with optical out
From: "stoatwizard" stoatwizard
Date: Thu Nov 16, 2006 4:48 am ((PST))
--- In  Rob Danielson <> wrote:
> Astute. With 45dB, 53dB and 50dB of gain respectively for Oryoki's
> list of ext pres, compared to 75dB for the internal Hi-MD mic pre
> (and the same A/D as line), using any external pre -> line
> analog/digital input for quality purposes might not prove effective.

What would be nice is for these manufacturers to give the minimum input
signal level needed to achieve 0dBFS at full gain max sensitivity. And
the corresponding noise floor. In the case of the NH700 and RH1 this
is -66dBu and the corresponding noise floor is -116dBu in 20-20kHz for
the NH700. The RH1 is a tiny bit worse due to some 100Hz interference
from the OLED display breaking through but still pretty good. And
anecdotally much better that your typical midrange CF recorder aimed at
musicians, though I'd love to get my hands on one and measure it to
nail this down with measurement.

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