> Adding a higher end external preamp to the FR2LE
> would simply add the better unit's noise to the existing noise of
the
> Fostex, with the possible exception of (A) in line input mode, the
> Fostex input electronics may be quieter than the mic preamps (though
> many preamps in consumer level gear merely pad down the mic preamp
to
> achieve line level,) or (B) the noise characteristics of the Fostex
> mic pre may be non-linear, resulting in a big increase in noise as
> you approach the highest gain setting.
(A)seems possible. The specs on the FR2LE seem to suggest that the
noise floor of the line-in is lower than the mic pres.
Just to follow up, I compared some recordings last night - one with the
trim at about 80%, and one with the trim at 100%. The ones in which
trim was set at 80% lacked the high frequency hiss (for the most part)
that the ones with the maxed trim suffer from. So in leu of impending
tests, it seems that there is a definite introduction of noise from
excessive trim gain on the FR2LE. Now to put some numbers on this noise.
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