Control elements, Airbass, Ratio – SPL Iron V2 Two-Channel Tube Mastering Compressor (Black/Silver) User Manual
Page 20: Auto bypass, Airbass / bypass / tape roll-off
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Control Elements
Ratio
Compressors of this design do not have a fixed compression ratio.
The lower the Threshold and the higher the input signal, the stronger the compression.
This is actually one of the main factors that make the IRON‘s compression so musical.
Auto Bypass
To be able to make an objective judgment of the processed material, it is best not to have
to be toggling between the original and processed signals by yourself, but rather have it
done automatically. Plus, the fact that you do not have to move from the sweet spot and
can concentrate better on the music to optimally assess the processing is a huge advan-
tage. The Interval control determines the time that needs to elapse before the compres-
sor toggles between the processed and unprocessed signals. Hard left is the shortest
set- ting. To increase the interval, turn the knob clockwise.
AirBass / Bypass / Tape Roll-Off
Many times, you might want to give that distinctive touch to a music production at the
very end of the production process, without the need to modify or redo the entire signal
chain. It was with this in mind that we developed two specially matched passive filters
and integrated them into a 120V technology amplification stage.
AirBass:
This filter makes music rounder and more well-balanced with powerful lows and bright,
silky highs.
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AirBass