Lexicon MPX 500 V2 - UPGRADE Installation Instructions Manual page 12

MPX 500 Version 2 Software Release Notes
THE COMPRSSR BANK
Presets 240, 241, 246, and 247 are compressor-only.
Presets 242, 243, 244, 245, 248, and 249 are combination
compressor and reverb with parallel (dual-stereo) routing.
240 2:1
241 3:1
242 3:1 | Small
243 5:1 | Medium
244 3:1 | Large
245 5:1 | Large
246 GuitarComp
247 Limiter
248 Male Vocal
249 Female Vocal
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a 2:1 compressor for subtle
dynamic range reduction
moderate dynamic range
reduction
moderate compression and
small-hall reverb
aggressive compression
and medium-hall reverb
moderate compression and
large-hall reverb
aggressive compression
and large-hall reverb
compression suitable for
lead guitar
severe compression with
high threshold
reverb and compression
optimized for male voice
reverb and compression
optimized for female voice
In all of these presets, the Adjust knob (knob 1, Edit page
2) controls "gain make-up" within a range of 0dB (none) to
9.5dB. This can be used to match volumes between the
Dry bypassed level and the compressed output level
obtained with typical music material.
With these presets, Mix should normally be set fully Wet
(100%) so the compressed Dly signal is the only output
signal present. Of course, the user can experiment with
Mix settings less than 100%. For example, if Mix is set to
75%, about 1/4 of the signal power will bypass the
compressor. Thus as the signal crosses the threshold, only
part of it will be compressed, resulting in an effective
compression ratio somewhat less than the indicated ratio.
However, when the gain-reduction increases to about
6dB, the compressed Wet portion drops relative to the Dry
component and the compressor becomes less significant.
This creates a subtle expansion effect until the final output
returns to a normal 1:1 ratio.
The six Compressor/Reverb presets are constructed to
offer both a reverb component and a zero-delay Dry
component, with the compressor acting on both. Mix
should be kept fully Wet and effective mix should be
adjusted via the Efx/Bal control (knob 3, Edit page 2).
Lexicon, Inc.