User manual LEXICON MPX 500 V2 UPGRADE

[. . . ] MPX 500 Version 2 Software Upgrade Installation Instructions & Release Notes A Harman International Company Lexicon, Inc. 3 Oak Park Bedford, MA 01730-1441 USA Tel 781-280-0300 Fax 781-280-0490 www. lexicon. com Customer Support Tel 781-280-0300 Fax 781-280-0495 (Sales) Fax 781-280-0499 (Service) 03/01 | Lexicon Part No. Bedford, MA USA All rights reserved This document should not be construed as a commitment on the part of Lexicon, Inc. The information it contains is subject to change without notice. [. . . ] Because most live engineers control these with the return channels of the system mixer, their presence on the MPX 500 Edit pages was considered distracting. The most commonly used dual mono combination is Delay and Reverb, so there is a preset (#255) with an alternative knob mapping for this combination. Its first two Edit pages are arranged with delay parameters on the left (knobs 1 and 2) and reverb parameters on the right (knobs 3 and 4). This arrangement splits the effects' controls left to right rather than by page. 13 These presets have the following features: · The Edit knobs have been re-mapped so that Edit page 1 always contains the four primary parameters for one of the effects; Edit page 2 always contains the four primary parameters for the other effect. Other Edit pages hold Mix and the less frequently used parameters from both effects. · In the Delay programs, two delay level controls have been combined into one Adjust knob labelled Tap/Dly. These programs contain two delays: one controlled by the Tempo (generally used to create · MPX 500 Version 2 Software Release Notes THE USER BANK The Version 2 Software expands the User Bank to hold 64 programs, instead of the original 30. Programs are stored and recalled exactly the same way as in the Version 1 Software of the MPX 500. However, User Bank dumps to MIDI (accomplished on the System page) are performed differently. Dumps are now performed in groups of 16 programs rather than the entire User Bank at once. When "Dump User Bank" on the System page is selected, the display asks which group to dump, either 1-16, 17-32, 33-48, or 49-64. Use Knob 3 (the same knob used to change other System Parameters) to change selections. When one of these dumps is sent back to the MPX 500 from an external MIDI storage device, the MPX 500 recognizes which set it contains and automatically stores it in the appropriate User Bank locations. The MPX 500 Version 2 software will also recognize and accept User Bank dumps made from Version 1, and will automatically store these programs in User Bank locations 1-30. Since the new User Bank programs contain Compressor settings, default values representing "off" will be inserted into each program. Lexicon, Inc. Installation of the MPX 500 Version 2 Software Upgrade will reset the system configuration to factory-default settings. To preserve System Parameter settings and User Bank programs, perform the following steps: 1. Dump the System Parameters or User Bank into an external MIDI device before installing the upgrade. Send the previously saved System Parameter or User Bank dump back to the MPX 500. Note: Some of the Plate, Chamber, and Room presets have been changed slightly, and the Ambience presets have been improved. The characters of all the presets have been preserved in Version 2, with minor exceptions. If the User Bank contains programs that were based on these, they may not sound exactly the same. [. . . ] Pitch shifting requires some time shifting. A true stereo (not merely dual-mono) signal contains components that are common to L and R. A proper stereo image is maintained only if the phase relationship between these signals is maintained, which requires that the exact same computations be applied to both channels. Pch Fbk -L-, -R/Scontinued on next page 20 MPX 500 Version 2 Software Release Notes -L-, -R/S- continued This is more demanding, and will often achieve better performance with a mono pitch shift than with a stereo pitch shift. Thus the MPX 500 contains programs for both. The Edit pages for the mono mode programs offer both "Left" and "Right" versions of key parameters. [. . . ]