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McDSP 6060 Ultimate Module Collection
Opto-C3/Opto-L3
The Opto-C3 and Opto-L3 modules use an
electro-optical attenuation circuit model
for compression (Opto-C) or limiter (Opto-L)
applications. The use of an electro-optical
circuit causes the dynamic compression to ‘back
off’ after a certain amount of dB reduction is
achieved. This feature is sometimes referred
to as a ‘dog tail compression effect’. Both
the Opto-C3 and Opto-L3 modules feature
a feedback compression (or limiter) mode in
which the compressor (or limiter) output is the key signal. As more gain is applied,
the compression amounts also increase, creating a convenient way to audition more
compression at roughly similar audio levels. The addition of the feedback mode
in several of the compression modules is one of the many new features of the 6060
Ultimate Module Collection plug-in.
BC-23
Based on a more ‘traditional’ English design, the British C-23
(BC-23 for short) module offers control for threshold, ratio,
attack, and recovery. Internal circuit smarts help prevent
unwanted distortion, even at extreme compression settings
(low threshold, fast attack and release). As found in several
of the compression modules in the 6060, there is also a
feedback compression mode.
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