SONOSAX STELLADAT II - Manual (Page 19)

19
Optimal Gain Setting
The gain selectors (page 6) allow to set the amplification of the analog inputs of the recorder
in a range of 70 dB by steps of 14 dB. The Overload LED's detect too hot signals for each
input. When a LED lights up, the gain has to be decreased until the LED goes out. The fine gain
setting is done with the Channels Level Controls
.
Maximal input level: + 18 dBu.
In order to save energy, the analog outputs of Stelladat II are OFF by default. To
switch them on by software, see Power Menu, > Analog Power > Outputs.
The output level of Stelladat II depends on the software selected dB scale (Setup
Menu > Display > dB scale). See Output Levels Table on page 74.
Level Setting
For this setting the Main Controls and (page 8) must be set into their 0 position. Adjust the
channel level control (page 6) until the LED lights up, then turn gently back until the LED
goes out.
Modulation Setting
The modulation setting is carried out by the Main Controls and (page 8) , depending on the
software selected audio routing (Configuration Menu > Audio routing).
In four-tracks configuration the main controls have effect on the input channels 2 by 2 (1-2 and 3-
4). In stereo or double-stereo configuration, or for other applications, the channel level controls
can be linked 2 by 2 with the LINK switches (
and (page 6).
Filters
Each analog input has a two-position High Pass Filter (page 6): 80 Hz and 120 Hz. These
filters have a slope of 12 dB/octave. The LIN position of the selector sets the filters off and leaves
the signal unchanged.
Limiter
Each input module includes a limiter. These limiters can be switched on or off by software (Setup
Menu > Limiter). Their default configuration is ON.
Stelladat II's limiters, designed from the legendary limiter of the SXS portable mixer offer a large
modulation reserve. Their use allow not to hesitate to modulate hot, not for all that to risk an
overload. They're protecting the AD converter from overloads and limit the signal to -2 dBFS.
The limiters can be set OFF whenever the signal level is predictable (rehearsed recordings). For
voice, news, documentary or feature recordings they can stay constantly on. Their acting will be
absolutely inaudible by brief overmodulations.