Hi Rob, you wrote:
> I doubt that it surprises anyone, but so far, a couple of tests have
> suggested that LS-10 compromises the performance of most low-noise
> mics.
Actually, I'm a bit surprised. The absolute noise floor of the K6/ME67
is -110 dBA and (according to my own measurements) the noise floor of
the LS-10 is -121 dBA at its maximum gain setting. So, by theory, this
11 dB margin should make sure that the preamp does not add any
significant noise.
However, the reason for this discrepancy is probably that Vicky used a
much lower gain setting on the LS-10 (REC LEVEL 2 instead of 10 that I
used in my test) in order to manage the loudly singing bird. High
quality professional recorders such as the SONY TCD 10 DAT usually
exhibit a better noise performance at lower gain settings.
Another reason might be perhaps that Vickys individual K6/ME67
microphone creates less noise when powered via external phantom power
than with the internal battery (which is necessary with the LS-10).
This increase of noise has been reported by several users (it is
actually a fault that can be fixed by SENNHEISER).
Regards,
Raimund
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