Balancing preamp and converter

[[email protected]]

I've been using a Logic system with a Lynx Aurora 16, AES 16 and Grace
801 and 201 preamps for years, and my present problem seems to have
suddenly emerged out of nowhere. The system used to be naturally
level matched in that when the Grace's clipped, the ins on the Lynx
we're just near peaking, as were the meters on Logic. Now it seems
that the Grace's are nowhere near peaking when the converters and DAW
meters are red hot. Reading the Aurora manual hasn't shed any light
on the situation, nor has restoring the Aurora to factory settings.
The "Trim" control in AES mode allows for -10 or +4 settings, but
these don't seem to rectify the problem either. Any thoughts about
why there would suddenly be these inconsistencies?

Thanks in advance for any suggestions.

[Mike Rivers]

wrote:
> I've been using a Logic system with a Lynx Aurora 16, AES 16 and Grace
> 801 and 201 preamps for years, and my present problem seems to have
> suddenly emerged out of nowhere. The system used to be naturally
> level matched in that when the Grace's clipped, the ins on the Lynx
> we're just near peaking, as were the meters on Logic. Now it seems
> that the Grace's are nowhere near peaking when the converters and DAW
> meters are red hot.

Something changed. The preamps can't put out any more output all of a sudden
so it seems that the input sensitivity (or rather, the input
calibration) of your
Aurora has changed. I suspect that in the "mixer" application, somehow
you've
changed the input sensitivity from +4 dBu to -10 dBV. Look for that
setting. It's
not an AES/EBU thing, it's an analog input thing.

Rather than waste your time with people like me who don't have an Aurora
(but I do have an L22, which has a nominal input level selector), if you
can't
find the setting after taking another couple of looks, get on the phone
to Lynx.
They're very helpful and will walk you through the settings and help you to
find what you're missing.




--
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