Lexicon MPX 500 - RELEASE NOTES REV 1 Release Note

NEW SYSTEM MODE PARAMETER
R1-MPX 1 Mode has been added to the system parameter MIDI Program Change. This additional setting
enables the MPX 500 to respond to program change messages from a Lexicon MPX R1 Foot Controller
set to MPX 1 Mode.
Parameter
MIDI Program Change
OVL INDICATOR SIGNALS DSP OVERLOAD
The OVL indicator located below the input meters reflects the internal processing state of the
MPX 500, not clipping of the inputs.
indicator signals the need to reduce input levels or the value of a parameter on the verge of
feedback. Input overload is indicated on the meters themselves. When input clipping occurs
on either channel, that channel's meter changes to "inverse" video, signalling the need to
reduce input levels. The diagram pictured at left shows clipping of the left channel as well as
internal processing overload.
OVL
CHANGING SIZE AND DURATION PARAMETERS
Changing the Size parameter in Reverb and Ambience presets or the Duration parameter in Gate presets
will cause the program to reload. The program must reload in order for the unit to execute the extensive
audio re-routing associated with changing these parameters without producing unwanted noise.
System Mode parameter Program Load Mode determines whether the MPX 500 will mute or bypass
during this reloading.
MEMORY PROTECT MODE
On page 19, the MPX 500 User Guide incorrectly states that Memory Protect Mode prevents changes to
the User Bank or the System Parameters. When enabled, Memory Protect Mode does prevent changes to
the User Bank. But it does not prevent changes to the System Parameters, nor does it prevent restoration
of MPX 500 factory-default settings. This means that Factory Init will erase any stored programs in the
User Bank.
A Harman International Company
Lexicon Part No. 070-14117 | Rev 1 | 05/01
Settings
Enabled, Disabled, R1-MPX1 Mode
Lexicon, Inc.
3 Oak Park
Bedford, MA 01730-1441
USA
MPX 500
Release Notes
Intermittent flashing or constant lighting of this
Tel 781-280-0300
Fax 781-280-0490
www.lexicon.com
Default Setting
Enabled
The
Customer Support
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Fax 781-280-0495 (Sales)
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