AYRE QA-9 - Manual (Page 13)

Controls and
Operation
The Ayre QA-9 A/D uses a zero-feedback,
variable-gain analog circuit to adapt to a wide range
of input signal levels. This allows the full dynamic
range of the analog source to be realized in the
digital recording.
Adjustment of the analog input sensitivity is only
available via the front panel knob.
Gain Adjustment (Input Sensitivity)
The front panel knob is used to adjust the input
sensitivity. Twelve levels, each having a step size of
2.0 dB, are provided. The input sensitivity will need
to be set separately for each analog source.
The color-coded front panel bar-graph displays how
much of the available digital range is being used.
The uppermost segment is red and indicates that
clipping has occurred (with a display hold time of
ten seconds).
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