Lexicon MPX 500 User Guide

Lexicon MPX 500 User Guide
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Below you will find brief information for MPX 500. The MPX 500 is a 24-bit dual channel processor, powered by Lexicon’s proprietary Lexichip™, which has 240 presets with classic reverb programs such as Ambience, Plate, Chamber and Inverse, as well as Tremolo, Rotary, Chorus, Flange, Pitch, Detune, 5.5 second Delay and Echo. Dual-channel processing gives you two independent effects in a variety of configurations: Dual Stereo (Parallel), Cascade, Mono Split and Dual Mono.

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Lexicon MPX 500 User Guide | Manualzz

MPX 500

24-Bit Dual Channel Processor

User Guide

Unpacking and Inspection

After unpacking the unit, save all packing materials in case you ever need to ship the unit. Thoroughly inspect the modules and packing materials for signs of damage. Report any damage to the carrier at once; report equipment malfunction to your dealer.

Communications Notice

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna

Increase the separation between the equipment and receiver

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected

Consult the dealer or an experienced radio/TV technician for help

Le présent appareil numérique de la classe B respecte toutes les exigences du Règlement sur le materiel brouiller du Canada.

Copyright

1999, 2000 Lexicon Inc.

All Rights Reserved.

06/00 • Lexicon Part No. 070-14116 • Rev. 1

Lexicon Inc.

3 Oak Park

Bedford MA 01730-1441

Telephone 781-280-0300

Fax 781-280-0490 www.lexicon.com

Table of Contents

Getting Started

Introduction ...................................................................... 1

Front Panel Overview ...................................................... 2

Setting Audio Levels

Rear Panel Connections .................................................. 4

Audio Connections • Footswitch

Basic Operation

The MPX 500 Display ...................................................... 7

Selecting and Loading Programs .................................... 8

Editing ............................................................................. 9

The "Adjust" Knob • Tap Tempo Functions:

Varying the rhythm • Audio Tap • Setting Tempo via MIDI

Bypass ........................................................................... 12

Storing Programs ........................................................... 12

System Mode

System Mode Parameters ............................................. 15

Bypass • Patching • Program Load • Digital Output

MIDI OUT/THRU • MIDI Pgm Change • MIDI Clock

Receive • Tempo • MIDI Dumps

Program Descriptions

1 Plate ........................................................................... 22

2 Gate ........................................................................... 23

3 Hall ........................................................................... 24

4 Chamber ..................................................................... 25

5 Ambience .................................................................... 26

6 Rooms ........................................................................ 27

7 Tremolo ...................................................................... 28

8 Rotary ......................................................................... 29

9 Chorus ........................................................................ 30

10 Flange ....................................................................... 31

11 Detune ...................................................................... 32

12 Pitch .......................................................................... 33

13 Delay, Echo .............................................................. 34

About the Dual Programs .............................................. 36

14 Special FX ................................................................ 38

15 Flange-Delay ............................................................ 39

16 Pitch-Delay ............................................................... 39

17 Chorus-Delay ............................................................ 40

18 Delay-Reverb ............................................................ 40

19 Flange-Reverb .......................................................... 41

20 Pitch-Reverb ............................................................. 41

21 Chorus-Reverb ......................................................... 42

22 MonoSplitDly ............................................................ 43

23 MonoSplitRvb ......................................................... 44

24 Dual Mono .............................................................. 45

MIDI Operation

MPX 500 MIDI Behavior ................................................ 47

Using Program Change Messages for Program Load ... 48

Learning Continuous Controllers ................................... 49

Activating Bypass or Tap Functions with Program Change

Messages ............................................................... 50

Clearing a Learned Assignment .................................... 51

MIDI Clock ..................................................................... 52

MIDI Dumps ................................................................... 52

MIDI Implementation Chart ............................................ 53

Specifications

Getting Started

Introduction

Thank you for your purchase of the MPX 500 24-Bit Dual Channel Processor.

Powered by Lexicon’s proprietary Lexichip™, the MPX 500 has 240 presets with classic reverb programs such as Ambience, Plate, Chamber and Inverse, as well as Tremolo, Rotary, Chorus,

Flange, Pitch, Detune, 5.5 second Delay and Echo. Dual-channel processing gives you two independent effects in a variety of configurations: Dual Stereo (Parallel), Cascade, Mono Split and

Dual Mono.

A large graphics display and dedicated Edit knobs give you instant access to each preset’s parameters and an easy Learn mode allows MIDI patching of front panel controls. In addition, tempocontrolled delays and modulation rates lock to Tap or MIDI clock, and Tap tempos can be controlled by audio input, the front panel Tap button, dual footswitch, external MIDI controller or MIDI Program

Change.

Other features include a software-selectable MIDI OUT/THRU port, pushbutton or footswitch selection of dry or muted audio output and a built-in power supply.

To make sure you get the most out of the MPX 500, be sure to read the manual.

Getting Started Lexicon

Front Panel Overview

Edit Pages

Accesses additional edit pages. Embedded LED lights to indicate program is altered but not stored.

Display

LCD shows input type, real-time meters, program and bank information, one page of four editable parameters, routing information, tempo rate.

Store

Initiates store procedure.

(When pressed with Tap, activates MIDI Learn.)

Load

Loads the selected program.

LED lights to indicate another program is cued.

Tap/Cancel

Flashes for tempo-based programs. Press twice to set a tempo. Hold to have audio input level or dialedin value determine tempo.

(When pressed with Store activates MIDI Learn.)

Input Trim

Sets the level of the incoming analog signal.

System

Accesses System mode. Use EDIT knob 1 to select parameters; knob 3 to change the parameter setting.

PROGRAM

Selects programs. Push and turn to select Banks.

EDIT

Knobs 1-4 adjust parameters

1-4 on the display.

Bypass

Mutes or bypasses the signal depending on the setting of the

System Bypass parameter.

* The level indicators are at their minimum size when the incoming signal is low (more than 30dB below full scale). The highest level indicators are highlighted when the signal approaches full scale.

2

MPX 500 User Guide Getting Started

Setting Audio Levels

As with any audio product, it is good practice to first power on all outboard gear, then the mixer, then any loudspeakers.

Input

1.

First, bypass all effects. The System parameter, Bypass Mode must be set to pass dry audio.

To do this:

Press System to enter System mode.

Turn Edit Knob 1 to display Bypass Mode.

Turn Edit Knob 3 to select Dry.

Press System again to exit System mode.

Press Bypass.

2.

With your highest level program material, start with a very low input level and advance it slowly.

3.

When you reach audible distortion, or when the display clip indicators light and stay on, lower the input level until the clip meters come on only on the highest peaks.

The Input Trim control allows the MPX 500 to be driven by an input level in the range of +20dBu to +8dBu. The minimum setting (fully counterclockwise) should be optimal for +4dBu (balanced) inputs. The maximum setting (fully clockwise) should be optimal for -10dBV (unbalanced) inputs.

Output

1.

Press System to enter System mode.

Output Level (the first System parameter) will be displayed.

2.

Turn Edit Knob 3 to set Output Level.

0dB should be unity gain for a +4dBu input device.

-12dB should be unity gain for a -10dBV input device.

3.

Press System again to exit System mode.

3

Getting Started Lexicon

Rear Panel Connections

MIDI

Two 5-pin DIN MIDI connectors are provided for MIDI IN and software selectable MIDI OUT/THRU.

POWER

Standard 3-pin IEC power connector; 100-240V, 50-

60Hz automatic switching to correct voltage range.

DIGITAL I/O

RCA S/PDIF connectors.

INPUT

Balanced Tip-Ring-Sleeve and

XLR stereo inputs.

OUTPUT

Balanced Tip-Ring-Sleeve and

XLR stereo outputs.

LCD Contrast

Adjusts display contrast.

FOOTSWITCH

1/4" TRS connector, for momentary contact footswitch, allows footswitch control of front panel Tap and Bypass functions.

Use only a Tip/Ring/Sleeve connector.

Using a Tip/Ring connector will short the ring and sleeve, which can hang the unit.

Audio Connections

The MPX 500 produces effects from either mono or stereo sources. With mono sources, the dry signal appears, along with audio effects, at both outputs. For instruments and sources with stereo outputs, use both inputs. We recommend using the outputs in stereo whenever possible, but if mono output is required, use either output jack.

Footswitch

A footswitch connected via the rear-panel footswitch jack allows control of Tap and Bypass. A momentary footswitch can be wired to a tip-ring-sleeve connector. A stereo Y-connector allows two identical single switches to be used.

Power off the MPX 500 before plugging in the footswitch. (Otherwise, Bypass will be enabled.)

4

MPX 500 User Guide Getting Started

The MPX 500 can be used as two independent Effects Processors with the Dual Programs. Designate two auxiliary sends on your console and connect one to the left MPX 500 input, and the other to the right input. Refer to the Program Descriptions to take advantage of this configuration.

TRS to XLR

Dual Processor Setup with a Console

Modes of Operation

5

MPX 500 User Guide Basic Operation

Basic Operation

The MPX 500 Display

The MPX 500 Program Select display shows detailed program information, including routing, the current tempo setting, a full page of as many as four editable parameter settings, and real-time input level meters.

Number of cued program (if any)

Bank containing currently loaded program

Number of currently loaded program Name of currently loaded program

Current tempo setting for delays and status of tempo selection

(p=program-specific, g=global)

Input Level meters

Routing configuration of the current program

Incoming signal information

S (Stereo), L or R (Mono Left or Right), D (S/PDIF) and

Sample Rate (44.1 or 48kHz)

As many as four editable parameters are shown on a page. (Pressing the Edit Pages button repeatedly cycles through all of the available pages.)

7

Basic Operation Lexicon

Selecting and Loading Programs

MPX 500 programs are organized into 24 Banks plus a User Bank. (The programs are described in detail later in this manual.) When powered on, the unit will display and load the last program used.

To display any other MPX 500 program, simply turn the front panel PROGRAM knob. The knob will progressively select the rest of the programs in the current Bank, then proceed through each of the remaining Banks. To jump between Banks, push the PROGRAM knob in while turning.

If the selected program is not the currently loaded program, the Load LED will light. After four seconds, the display will revert to showing the current program, but the Load LED will remain lit to indicate that the last selected program is cued for loading. The number of the cued program will appear highlighted to the left of the name of the current Bank on the display. To load the cued program, press Load.

An AutoLoad feature is available which will cause selected programs to load automatically 3/4 second after the knob stops turning. (See System Mode for information on activating this and other System mode parameters.)

Turn PROGRAM to cycle through all of the MPX 500 programs.

To select a specific program Bank, push the PROGRAM knob in while turning.

When the selected program is different from the currently running program, the Load LED will light.

Press to load the selected program.

8

MPX 500 User Guide Basic Operation

Editing

Each MPX 500 program has as many as 16 editable parameters, organized into edit "pages" of as many as four parameters each. The front panel Edit Pages button cycles through all of the available pages for the current program.

Dedicated edit knobs corresponding to each page of displayed parameters make program adjustment easy. Simply turn the knob (1-4) for the displayed parameter (1-4) you want to adjust. When you alter a parameter value, it will be highlighted and the Edited LED will light to show that the program is different than the currently running version. (These edit indicators will be turned off when you store the new program, or if you load another program.) If you return to Program Select mode without storing your changes, your edited version will still appear as the currently running program, but the Load LED will light and the original version of the program will be cued.

Edited parameter values will be highlighted.

The current tempo will be displayed (in BPM) if the program contains tempobased parameters.

The Edited LED will light to show that the program has been changed from the currently running version.

Pressing Edit Pages will display another page of parameters.

The 4 front panel edit knobs correspond to the displayed parameters. Position 1 on Page 1 always contains a special custom control for easy editing.

9

Basic Operation Lexicon

The "Adjust" Knob

A special control in each program lets you make quick adjustments to the most critical parameters of the sound. We have positioned this custom control under Edit knob 1 on Page 1 of each program and refer to it as the Adjust knob in this manual.

In many cases, this parameter controls several effect parameters simultaneously to provide simple control of a complex editing process. In many Chamber and Room programs, for example, this parameters controls the "liveness" of the space by changing decay, EQ and early reflections all at the same time. For easy identification, this parameter name will always appear in parentheses, as:

(Livenes). When you turn the knob, the bottom display line will temporarily show a more complete description of its function in the running program.

NOTE: As the Adjust knob can access and control more internal controls than the 16 displayed parameters in each program, there may be instances where this control (or Tap) will modify a parameter which is not displayed on any of the program's edit pages. In these instances, the Edited

LED will light, even though no displayed parameters are highlighted.

Tap Tempo Functions

Varying the Rhythm

The MPX 500 Tempo features allow you to set the delay times and modulation rates of tempo-based programs to the beat of the music. There are several ways to set tempo (40-400BPM), each of which is described below. No matter which method you select, the current tempo rate will be displayed in the upper right corner of the display, and the embedded LED in the Tap button will flash in tempo whenever a program with tempo-controllable parameters is loaded . You can set a global tempo for all of the MPX 500 programs, or have each program stored with its own tempo. (See System Mode.)

The global (g) or Program (p) system parameter selection is shown to the right of the tempo display.

10

MPX 500 User Guide

When programs with tempo-based parameters are loaded, the current tempo (in Beats per

Minute) is shown in the upper right corner of the display.

Basic Operation

The Tap LED will flash in the selected tempo.

To set the tempo from the front panel, simply press the Tap button (or a connected footswitch) twice in time with the music. That’s your tempo. No more dialing up what “could be” the delay time in milliseconds — just tap twice — the MPX 500 will figure out the time for you. When you want to change tempo, just tap twice again in the new rhythm.

Audio Tap

You can also use audio input to set the tempo of the MPX 500 delay times.

1.

Press and hold the Tap button until the Tempo display appears. (Using a footswitch lets you press and hold Tap without taking your hands off your instrument. )

2.

The message Detecting Audio will be shown, along with a list of parameters in the current program which can be controlled by tempo. Play 2 short notes in rhythm to set the tempo.

When you release Tap, the message Use Knob 3 will be displayed to indicate that tempo can now be further adjusted from the front panel. Just turn Edit knob 3 to dial in a tempo (in BPM).

3.

Press Tap to exit this mode.

Many factory programs are stored with their own tempo rate. You can tap in a new tempo (and store your version in a User location) or set the MPX 500 to always recall the last tempo used and apply it to every program. (See System Mode for information on changing the MPX 500 default Tempo Mode from Global to Program.)

11

Basic Operation Lexicon

When you select Global Tempo from the MPX 500 System mode, the last tempo tapped in will be applied to all programs with tempo-controlled parameters. (You will know if a program is tempocontrollable because the Tap button LED will flash when the program is loaded and the tempo rate display will appear.)

Setting Tempo via MIDI

When used in conjunction with the Learn feature, Tap can be set remotely from any MIDI device. MIDI controllers, such as Lexicon's MPX R1 Foot Controller, can be used to send Continuous Controller messages or Program Changes to the MPX 500 or you can send Continuous Controller or Program

Change messages from the button and fader moves of many mixing consoles. The MPX 500 will

Learn these messages and allow you to set tempo via MIDI.

The MPX 500 can also receive and utilize MIDI Clock. So, when used with a MIDI sequencer or drum machine, the MPX 500 automatically adjusts its internal tempo to match. (See MIDI Operation.)

Bypass

Pressing the front panel Bypass button will cause the MPX 500 to pass only unprocessed audio, to mute completely, or to mute the inputs to the current effect.

A System Mode parameter determines which of these three options is in effect. (See System Mode.)

Bypass functions can also be activated by footswitch or via MIDI.

12

MPX 500 User Guide Basic Operation

Storing Programs

When you want to save a program, press Store. The Store and the Tap/Cancel LEDs will light to indicate that the MPX 500 store function is armed. (If you want to exit without saving the current program, press Tap/Cancel at any time before completing the store operation.)

The first available location in the User Bank will be selected by default when Store is pressed. To select a different location (including the location of a User program you want to overwrite), press and turn PROGRAM to select another location in the User Bank.

The program will be displayed with its original name and a numeric suffix (1-9). You can keep this default name, or use Edit knobs 1 and 3 to select character positions and assign characters to create a different name.

Press Store to save the program with its new name. When the Store operation is complete, the new program will automatically load (becoming the currently running program).

13

MPX 500 User Guide System Mode

System Mode

System parameters and MIDI dumps are activated in System mode. To enter this mode, press

System. The System LED will light to indicate you are in System mode.

The adjustable parameters available in this mode are described on the following page. Edit knob 1 will select parameters, edit knob 3 will change the selected parameter's setting.

Use Edit knob 3 to change the selected parameter.

Use Edit knob 1 to select

System mode parameters.

The System LED will light when System mode is active.

Except for MIDI dumps and reinitialization commands, which require confirmation to execute, system parameter changes are effected immediately.

Pressing System again will return the unit to its previous running mode.

15

System Mode

System Mode Parameters

Parameter

Output Level

Input Source

Clock Source

Digital Output

Mix Mode

Bypass Mode

Program Load Mode

Tempo Mode

MIDI Patches

MIDI Channel

MIDI Program Change

MIDI Clock

MIDI Out/Thru

Operating Mode

Memory Protect

Auto Load

Dump User Bank

Dump Current Program

Dump System Data

Clear User Bank

Factory Init

Settings

0dB to -24dB, Off

Analog Stereo, Analog Mono L,

Analog Mono R, S/PDIF Digital

Internal 44.1K, Internal 48K, External (S/PDIF)

Processed, Dry

Program, Global

Dry/Full Mute/Input Mute

Bypass Dry, Full Mute

Program, Global

Enabled, Disabled

Off, 1-16, Omni

Enabled, Disabled

Enabled, Disabled

Out, Thru

Normal, Locked, Demo

Enabled, Disabled

Enabled, Disabled

-

-

-

-

-

Default Setting

0dB

Analog Stereo

Internal 44.1K

Processed

Global

Dry

Bypass Dry

Global

Enabled

1

Enabled

Enabled

Out

Normal

Disabled

Disabled

-

-

-

-

-

Lexicon

16

MPX 500 User Guide System Mode

Output Level

This parameter appears by default whenever you press System to give you quick access to output level settings.

Input Source

Allows you to specify the type of input. If S/PDIF Digital is selected and no digital signal is present, the MPX 500 will mute and display an alert message.

Clock Source

Allows you to select 44.1kHz or 48kHz internal clock sources, or external (S/PDIF) clock source.

Digital Output

When Dry is selected, Analog In to Digital Out provides an auxiliary A/D converter.

Mix Mode

Determines whether the current Mix setting of the MPX 500 will be applied to all programs (Global), or whether program-specific Mix levels are restored on each program load.

NOTE: A default Mix value is stored with each program. These individual stored values will take effect when a program is loaded, if Mix Mode is set to Program — the Global mix setting will override the individual stored settings if Mix mode is set to Global.

Bypass Mode

This parameter sets the Bypass button (or the footswitch, or MIDI controller assigned to Bypass) to mute the inputs, to mute the inputs and outputs, or to bypass the processed audio (passing only dry audio to the outputs).

Program Load Mode

This parameter determines whether the MPX 500 will engage full mute or simply bypass processed audio while changing programs.

17

System Mode Lexicon

Tempo Mode

Determines whether the current tempo of the MPX 500 will be applied to all programs (Global), or whether program-specific tempos are restored on each program load.

NOTE: A default Tempo is stored with each program. These individual stored tempos will take effect if Tempo Mode is set to Program — the Global tempo setting will override the individual stored settings if Tempo mode is set to Global.

MIDI Patches

This parameter allows you to temporarily suspend (Disable) and restore (Enable) any Learned patches.

MIDI Channel

Allows selection of a MIDI Channel for all MPX 500 messages (Learned, SysEx and Program

Change).

MIDI Program Change

The setting of this parameter determines whether or not the MPX 500 will recognize MIDI Program

Change messages for loading programs.

MIDI Clock

The setting of this parameter determines whether or not the MPX 500 will recognize MIDI Clock messages.

MIDI Out-Thru

Sets the rear panel MIDI OUT/THRU jack for either MIDI OUT or MIDI THRU functionality.

NOTE: MIDI Dumps can only be performed when this parameter is set to MIDI Out.

18

MPX 500 User Guide System Mode

Operating Mode

Allows the MPX 500 front panel controls to be locked into their current settings, or to be placed in continuous program load cycle for demonstration purposes.

When Locked is selected, only the User Bank is available. Program Load Mode is set to Auto Load and only Bypass, Program Select and System modes are available. Edit Mode is not available and

Tempo and Patches cannot be Learned.

Changes to this parameter take effect on the next power cycle.

Memory Protect

When enabled, this parameter prevents changes to system parameters and User programs.

Auto Load

When enabled, programs will load approximately 3/4 second after selection. When disabled, Load must be pressed to load selected programs.

MIDI Dumps (Dump User Bank, Dump Current Program, Dump System Data)

These selections allow you to execute MIDI Dumps. See MIDI Operation.

Clear User Bank

Selecting this parameter will arm a reinitialization procedure that will erase the contents of the User

Bank and restore it to its factory state. Pressing Store will execute the procedure.

Factory Init

Selecting this parameter will arm a reinitialization procedure that will restore all of the adjustable parameters in the MPX 500 to their factory default states. This includes all User programs, System parameters and Learned patches. Pressing Store will execute the procedure.

19

MPX 500 User Guide Program Descriptions

Program Descriptions

The 240 programs in the MPX 500 are designed to provide a full palette of high caliber ambience, reverb, delay, pitch shift and other effects. As you audition the programs, be sure to vary the Adjust parameter.

The Adjust parameter (Edit Page 1, Knob 1 in each program) has been carefully customized for each individual program. In many cases it controls several effect parameters simultaneously to provide simple control of a complicated editing process. In many Chamber and Room programs, for example,

Adjust controls the "liveness" of the space by changing decay, EQ and early reflections all at the same time. This parameter has a range of 0-127 to make it compatible with MIDI control.

For easy identification, this parameter name will always appear in parentheses, as: (Livenes). When you turn the knob, the bottom display line will temporarily show a more complete description of its function in the running program.

The following section provides a general description of each MPX 500 Bank along with tables that detail all of the programs available in that Bank. These details include the function of the Adjust parameter and the Tap button (for programs that use tempo-controlled rate or delay times).

21

Program Descriptions

1 Plate

Lexicon

The Plate programs synthesize the sound of metal plates with high initial diffusion and a relatively bright, colored sound. These programs are designed to be heard as part of the music, mellowing and thickening the initial sound. They are a popular choice for enhancing pop music, particularly percussion.

#

7

8

9

5

6

3

4

1

2

Plate PROGRAMs

Small Plate

Medium Plate

Large Plate

Tap PreDelay

Tape Slap

Rich Plate

Large &Bright

VocalPlate

Drum Plate

Adjust

Livenes

Livenes

Livenes

MidRT ips (7.5/15)

MidRT

MidRT

Livenes

Livenes

Tap

Predelay (1/32 Note)

Predelay (1/32 Note)

Predelay (1/32 Note)

Predelay (1/32 Note)

Echo

Plate reverb was originally generated by a large, thin sheet of metal suspended upright under tension on springs. Transducers attached to the plate transmitted a signal that made the plate vibrate — making sounds broadcast through the plate seem to be occurring in a large open space.

22

MPX 500 User Guide

2 Gate

Program Descriptions

The Gate programs provide a fairly constant sound with no decay until the reverb is cut off abruptly.

These programs work well on percussion — particularly on snare and toms, but be sure to experiment with other sound sources as well.

* Note that audio is muted briefly when Time is altered with Adjust.

#

10

11

12

13

14

15

16

17

18

19

Gate PROGRAMs

StraightGate

Slope Down

Drum Gate

140ms TapPre

240ms TapPre

340ms TapPre

440ms TapPre

540ms TapPre

Inverse

Dark Inverse

Adjust

Time*

Time*

HighCut

HighCut

HighCut

HighCut

HighCut

HighCut

Time*

Time*

Tap

Predelay (1/32 Note)

Predelay (1/32 Note)

Predelay (1/32 Note)

Predelay (1/32 Note)

Predelay (1/32 Note)

Gated reverbs were originally created by feeding a reverb, such as a metal plate, through an analog gate device. The decay time was set to instant, and the hold time varied the duration of the sound.

23

Program Descriptions

3 Hall

Lexicon

The clean reverberation of the Hall programs is designed to add spaciousness, while leaving the source material unchanged. In addition to general instrumental and vocal applications, the Hall programs are a good choice for giving separately recorded tracks the sense of belonging to the same performance.

#

23

24

25

26

20

21

22

27

28

29

Hall PROGRAMs

Small Hall

Medium Hall

Large Hall

Small Church

Large Church

Jazz Hall

Dance Hall

Synth Hall

Concert Hall

Gothic Hall

Adjust

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

Tap

Lexicon's Hall programs recreate the acoustics of actual places, from grand reverberant enclosures to small concert halls.

24

MPX 500 User Guide Program Descriptions

4 Chamber

The stereo Chamber programs produce even, relatively dimensionless reverberation, with little change in color as the sound decays. The initial diffusion is similar to the Hall programs, but the sense of space and size is much less obvious. This characteristic, along with the low color of the decay tail makes these programs useful on a wide range of material. They are especially useful on spoken voice, giving a noticeable increase in loudness with very low color.

#

33

34

35

36

30

31

32

37

38

39

Chamber PROGRAMs

Brick Wall

Basement

Live Concert

Drum Chamber

Moves on...

Live Chamber

VocalChambr1

VocalChambr2

Wide Chamber

PCM60: Large

Adjust

HighCut

HighCut

Livenes

MidRT

Livenes

Livenes

Livenes

Livenes

Livenes

MidRT

Tap

Eko Delay

Eko Delay

Eko Delay

Historically, recording studio chambers were often oddly shaped rooms with a loudspeaker and set of microphones to pick up the ambience in various parts of the room.

25

Program Descriptions Lexicon

5 Ambience

The Ambience programs simulates reflections from room surfaces with random reflections, a gradual decay of overall level, and a gradual narrowing of the bandwidth.

In these programs, the Mix control adds depth — emulating the movement of a coincident pair of microphones from the sound source into the room.

#

44

45

46

47

40

41

42

43

48

49

Ambience PROGRAMs

Announcer

VerySmallAmb

SmallAmb

MidSizeAmb

Studio "D"

Bright Amb

Dark Amb

Marble Foyer

Smooth Amb

Guitar Amb

Adjust

HighCut

HighCut

HighCut

HighCut

HighCut

Decay

Decay

Livenes

Decay

Decay

Tap

Ambience gives warmth, spaciousness and depth to a performance without coloring the direct sound, and is commonly used to add a room sound to recorded music or speech. In music recording,

Ambience can realistically add distance to close-miked signal.

26

MPX 500 User Guide Program Descriptions

6 Room

The Room programs are very useful on drums and percussion and can also be applied to electric guitar tracks.

#

50

51

52

53

54

55

56

57

58

59

Room PROGRAMs

Bedroom

Tiled Room

Studio "C"

Small Room

Studio "B"

Rehursal Room

Studio "A"

Large Room

Fat Space

Chunky Space

Adjust

Walls

LF Boost

MidRT

Livenes

MidRT

EQ

MidRT

EQ

MidRT

EQ

Tap

The Room programs emulate actual rooms where there is a more apparent sense of being in a small live place.

27

Program Descriptions Lexicon

7 Tremolo

The tremolo programs offer a variety of tremolo shapes (square, sawtooth, triangle, sine and rectified sine). The synchronization of the left and right sides can be adjusted to produce mono and stereo effects. As the tremolo rates of several variations are set with Tap, it’s easy to match the tempo of the music. Other variations let you set left and right channel waveforms out-of-phase, resulting in a panning motion.

All of these programs should be used with Mix set to fully Wet. By adding more dry to the wet/dry mix,

Mix effectively sets the depth of the Tremolo. As Tremolo is essentially a rhythmic effect, care should also be taken to make the rate work with the tempo of the music.

#

60

61

62

63

64

Tremolo PROGRAMs

RectSineTap

Square Tap

Sine Tap Trpl

Triangle

Sawtooth

Adjust

Phase

Phase

Phase

Phase

Phase

Tap

Rate (1/8 Note)

Rate (1/8 Note)

Rate (1/8 Note)

Rate (1/8 Note)

Rate (1/8 Note)

Tremolo is a rhythmic change in loudness, commonly employed as an expressive technique by vocalists and wind instrument players. It is also one of the oldest electronic effects — frequently used with electric guitar, electric piano and, sometimes, vocals. Different tremolo effects are largely determined by the rate and waveform shape of the loudness change (fast or slow, smooth or sharp).

If the effect is used in a stereo mix, the left and right can be synchronized in a variety of ways to produce dramatic side-to-side motion.

28

MPX 500 User Guide Program Descriptions

8 Rotary

#

65

66

67

68

69

The rotary effect is a detailed simulation of a Leslie-style cabinet. The input signal is split into high and low frequency bands. The rotation effect is created by a synchronized combination of pitch shifting, tremolo and panning. Like the physical model, the high (horn) and low (drum) frequencies are “spun” in opposite directions. Horn and drum speeds are independent, and are designed with acceleration and deceleration characteristics to simulate the inertia of the original mechanical elements.

A virtual requirement for any organ sound, the rotary programs also sound great with guitar and electric piano rhythm parts. In fact,they're great alternatives to chorus and tremolo effects for any sound source.

All of these programs should be used with Mix set to fully Wet for the full effect.

Rotary PROGRAMs

Rot:SlowFast

Rot Slow

Rot SpeedAdj

Rot TapRate1

Rot TapRate2

Adjust

Switch

Resnce

Speed

Balance

Resnce

Rate

Rate

Tap

Rotary speaker cabinets were originally designed to provide a majestic vibrato/choir effect for electronic theater and church organs. The most well known rotary speaker is the Leslie™ Model 122, which has two counter-rotating elements — a high frequency horn and a low frequency rotor with slow and fast speeds. The sound generated as the spinning elements change speed is truly magical.

The swirling, spacious effect is hard to describe, but is instantly reconizable.

29

Program Descriptions Lexicon

9 Chorus

#

70

71

72

73

74

The stereo Chorus programs uses six independently randomized delay voices panned across the stereo field. These programs, inherited from Lexicon's PCM 80, generate a rich, airy effect that can simulate the sound of multiple sound sources from a single source. These programs are stunning on acoustic or clean electric guitar.

All of these programs should be used with Mix set to fully Wet to achieve the full richness of the 6voice chorus.

Chorus PROGRAMs

Chorus1

Chorus2

Chorus3

Slap Chorus1

Slap Chorus2

Adjust

Resnce

HighCut

Diffusn

Diffusn

Depth

Tap

Chorus effects multiply the original audio source to create a lush, full sound. Traditionally used to fatten up tracks and to add body to guitar without coloring the original tone, chorus effects are also often used in combination with echoes, plates and other reverb effects.

30

MPX 500 User Guide Program Descriptions

10 Flange

The MPX 500 stereo Flanger has two 2-tap delays —one per channel. The first tap is fixed, and the second sweeps past it. Mixing the two delay taps together creates the flanging effect.

All of these programs should be used with Mix set to fully Wet to achieve the full flange effect.

#

75

76

77

78

79

Flange PROGRAMs

Flng Lite

Flng Lite180

Flng Med180

Flng Deep

Flng Deep180

Adjust

Speed

Resnce

Speed

Resnce

Resnce

Tap

Flanging effects were originally created by simultaneously recording and playing back two identical programs on two tape recorders, then using hand pressure against the flange of the tape reels to slow down first one machine, then the other. The result was a series of changing phase cancellations and reinforcements, with a characteristic swishing, tunnelling and fading sound.

31

Program Descriptions Lexicon

11 Detune

The 4-voice stereo Detune programs have one pair of voices per channel. As more detune amount is applied (with Adjust), the pair grow more out of tune, providing a lush sound without the need for a dry signal to be mixed in.

All of these programs should be used with Mix set to fully Wet to achieve the full effect.

#

80

81

82

83

84

Detune PROGRAMs

Detune Mild

Detune Med&Warm

Detune Heavy

Det Xtreme

Pitch Detune

Adjust

Dtuning

Dtuning

Dtuning

Dtuning

Dtuning

Tap

Detune effects add a delayed/pitch shifted version of the original source — thickening up the sound. They can be particularly effective when used to simulate double-tracking. They are also great alternatives to chorus effects, adding the richness of a chorus without the audible sweep caused by the chorus rate.

32

MPX 500 User Guide Program Descriptions

12 Pitch

The stereo polyphonic Pitch programs allow complete program material or monophonic sources to be shifted from two octaves down through one octave up.

For pitch correction, use these programs with Mix set to fully Wet. For harmonization, use the desired amount of wet/dry Mix.

#

85

86

87

88

89

Pitch PROGRAMs

Pch Chrmatic

Pitch Fine

Pch 4th-5ths

Pch PowerInV

Vocal Chorus

Adjust

Pitch

Pitch

Pitch

Pitch

HighCut

Tap

Altering the pitch of a sound allows a variety of effects from subtle detuning to the creation of harmonies and chords.

33

Program Descriptions Lexicon

13 Delay, Echo

The Delay, Echo variations include mono (5.5 seconds), stereo (2.7 seconds) and 6-voice multitap effects. Each of the programs can be used for digital delay or tape echo effects. When the Adjust parameter (Page 1, Edit knob 1) is set to a value between 63 and 3, tape echo effects are produced.

(Each repeat is darker and softer.) When the Adjust parameter is set to a value between 64 and 127, digital delay effects are produced. (Each repeat is the same timbre, but softer.)

In programs 90-97, Adjust also sets the amount of feedback — with an increasing number of repeats as the parameter value is increased. Delay time is set with Tap. Each program is preset with a different useful rhythm.

In Variations 98-104, the amount of feedback is preset and Adjust determines Delay time.

NOTE: In all of the Delay programs (including the Dual combinations), Delay times (e.g. L Dly 1, R

Dly 1 etc.) not controlled by Tempo, are scaled by the Master Delay parameter (MstrDly). In some programs, Adjust controls MstrDly.

MstrDly values range from 0-100% and are set to 100% in most preset programs. If this control is reset manually (or by Adjust) to less than 100%, individual delay times will scale accordingly. For example, if MstrDly is set to 25%, delay times will be reduced to 1/4 of their normal value. Other knobs which control those delay times become correspondingly less sensitive — requiring, in this example, 4 times as manny clicks to obtain their normal result.

When using any type of delay or echo effects with music, always pay attention to the way the repeats fall rhythmically to the beat. The most effective delay and echo patterns are those that lock in with the tempo of the tune.

34

MPX 500 User Guide Program Descriptions

#

94

95

96

97

98

90

91

92

93

99

100

101

102

103

104

Delay, Echo PROGRAMs

Dly Mono Tap

DlyStereo Tap

Dly ShuflTap

Dly Dot8 Tap

Dly 8+3plTap

Dly Pong Tap

Dly XfbkTap1

Dly XfbkTap2

Dly Mono

Dly Stereo

Dly TapeSlap

Multi Bounce

MultiInverse

Multi Linear

Multi Pong

Adjust

Feedbk

Feedbk

Feedbk

Feedbk

Feedbk

Feedbk

Feedbk

Feedbk

Time: 0-5.5sec

Time: 0-2.7sec

Time: 3 3/4 to 30ips

Time: 0-100ms

Time: 0-400ms

Time: 0-400ms

Time: 0-150ms + Fbk

Tap

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delays and echoes are effects that repeat a sound a short time after it first occurs. The simplest

(and oldest) delay effect is tape slap — a single repeat about 100ms after the original sound. (It was often used on Elvis’s voice and rockabilly guitar tracks.) Tape slap becomes tape echo when the output of the tape is fed back into the input (feedback),turning a single repeat into a series of repeats

— each a little softer and a little darker than the last. This darkening of each repeat is characteristic of the analog tape recording process. Digital delays don’t have this characteristic — each repeat has the same exact timbre and the only difference from repeat to repeat is in loudness.

Digital delay and tape echo are both useful, but they are different. Tape echo is warmer and allows the original sound to stand out more, while digital delay can present a “perfect” copy of the orignal sound.

35

Program Descriptions Lexicon

About the Dual Programs (Banks 14-24)

The Dual programs combine either a Delay or Reverb algorithm with a Flange, a Pitch or a Chorus.

The Effects Lvl/Bal parameter (Page 1 Edit knob 3) controls the relative balance of each effect in the combination.

Four routing configurations are used in the Dual programs: Dual Stereo (Parallel), Cascade, Mono

Split and Dual Mono.

Bank 14 (Special FX) contains programs which use a variety of crouting configurations. The remaining Banks (15-23) are organized as follows:

In Banks 15-21, the first six programs in each Bank are set up in the Parallel configuration - two stereo programs placed side by side so that they receive and output stereo audio from both left and right channels. The last four programs in each Bank are set up in the Cascade configuration - two stereo programs, one placed after the other (for example, Flange-Delay, Flange passes its stereo signal to the Delay).

Banks 22 and 23 are set up in the Mono Split configuration which is similar to Parallel, but here, one program (Flange) receives audio from the left input and the other program (Delay) receives audio from the right input. Both programs then output stereo audio.

Because Dual Mono programs are mixed differently, we've grouped them all in the last preset Bank

(24). In these programs, one program (Flange) appears on the left channel only and the other program (Delay) appears on the right channel only.

36

MPX 500 User Guide Program Descriptions

Generally, the Effects Lvl/Bal parameter (Page 1, Edit knob 3) controls the balance of the two effects in each dual program. In the cascade variations, rather than simply controlling balance, the knob varies the amount of the first effect or dry signal which is fed into the second effect.

At center, you get delayed pitch shift

This setting provides pitch shift plus delayed pitch shift

This setting provides delayed pitch plus delayed dry signal

At the leftmost setting, you get only pitch shift

At the rightmost setting, you get only delayed dry signal

Behavior of Effects Lvl/Bal in the cascade programs. Several points from the knob's continuous range are illustrated here, using Pitch-Delay as an example.

37

Program Descriptions Lexicon

14 Special FX

The Special FX programs showcase the flexibility and creative possibilities of the MPX 500. Adjust is completely different in each of the programs, so be sure to experiment with all of them.

# Special FX PROGRAMs

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

Infinite

The Abyss

Jet Flange

Chorus>Verb

TapRot Dly

Fader Verb

LowRumble

Ducker Verb

DuckerChorus

Ducker Xfeed

Echoes:Beats

Panning Dlys

DreamSequence

Infinite Dly

Diffusor

Adjust

HighCut

Dtuning

Resnce

HighCut

Time: 0-150ms+Fbk

Level

Decay

Decay

Resnce

Feedbk

Delay

Feedbk

Pitch

Feedbk

Diffusn

Tap

Eko

Speed (Whole Note)

Rate (Drum/Horn)

Echo

Delay Time

Dly Time, Pan Rate

Delay Time (Whole Note)

38

MPX 500 User Guide

15 Flange – Delay

# Flange-Delay PROGRAMs

120

121

122

123

124

125

126

127

128

129

Flng Tap

Flng .8Tap

Flng 3plTap

Flng PongTap

Flng Xfeed

Flng Bounce

Flng>Tap

Fngl>Fbk

Flng>Pong

Flng>Bnce

Adjust

Feedbk

Feedbk

Feedbk

Feedbk

Time: 0-150ms

Time: 0-200ms, Feedbk

Feedbk

Time: 0-150ms, Feedbk

Feedbk

Time: 0-200ms, Feedbk

16 Pitch – Delay

# Pitch-Delay PROGRAMs

130

131

132

133

134

135

136

137

138

139

5th Tap

8ve 3pTap

8ve 8+3plTap

3rd4thPong

4th5th Xfeed

5th6th Xfeed

8ve> Xfeed

5th>Xfeed

MajMin>Fbk

StepUp>Tap

Pitch

Pitch

Pitch

Pitch

Pitch

Pitch

Pitch

Pitch

Pitch

Pitch

Adjust Tap

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Program Descriptions

Tap

Delay Time (1/4 Note)

Dotted 1/8 Note

1/8 Note Triplet

Delay Time (1/4 Note)

Delay Time (1/4 Note)

Delay Time (1/4 Note)

Routing

Routing

39

Program Descriptions

17 Chorus– Delay

# Chorus-Delay PROGRAMs

140

141

142

143

144

145

146

147

148

149

Chor Tap

Chor .8Tap

Chor 8+3pl

Chor Pong

Chor Repeat

Chor Bounce

Chor>Tap

Chor>Repeat

Chor>Pong

Chor>Bnce

Feedbk

Feedbk

Feedbk

Feedbk

Time

Time

Feedbk

Time

Feedbk

Time

Adjust

18 Delay – Reverb

# Delay-Reverb PROGRAMs

150

151

152

153

154

155

156

157

158

159

Tap Small

3plTapMidSz

8+3pl Large

Pong Small

Xfeed MidSz

Xfeed Large

Tap > Room

8+3pl> Large

Xfeed > Room

Xfeed> Large

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

Livenes

MidRT

Livenes

MidRT

Adjust

40

Tap

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Tap

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Lexicon

Routing

Routing

MPX 500 User Guide

19 Flange – Reverb

# Flange-Reverb PROGRAMs

160

161

162

163

164

165

166

167

168

169

LiteFl Smal

LiteFl MidSz

LiteFl Large

DeepFl Small

DeepFl MidSz

DeepFl Large

LiteFl > Small

LiteFl > Room

DeepFl>Large

DeepFl>Room

Adjust

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

Livenes

MidRT

Livenes

20 Pitch – Reverb

# Pitch-Reverb PROGRAMs

170

171

172

173

174

175

176

177

178

179

3rd4th Room

4th5th Room

5th6th Room

8ve MidSiz

Power MidSiz

Detune Room

Fine> Small

Power>Large

4th > MidSiz

8ve> MidSiz

Pitch

Pitch

Pitch

Pitch

Pitch

Dtuning

Pitch

MidRT

MidRT

MidRT

Adjust

Tap

Speed (Whole Note)

Speed (Whole Note)

Speed (Whole Note)

Speed (Whole Note)

Tap

PreDelay (1/32 Note)

PreDelay (1/32 Note)

PreDelay (1/32 Note)

PreDelay (1/32 Note)

PreDelay (1/32 Note)

PreDelay (1/32 Note)

PreDelay (1/32 Note)

PreDelay (1/32 Note)

PreDelay (1/32 Note)

PreDelay (1/32 Note)

Program Descriptions

Routing

Routing

41

Program Descriptions

21 Chorus – Reverb

# Chorus-Reverb PROGRAMs

180

181

182

183

184

185

186

187

188

189

Chor1 Small

Chor1 MidSiz

Chor1 Large

Chor2 Small

Chor2 MidSiz

Chor2 Large

Chor1 > Room

Chor2 > Room

Chor3 > Room

Chor1 > Small

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

Livenes

Livenes

Livenes

MidRT

Adjust

Tap

Lexicon

Routing

42

MPX 500 User Guide

22 MonoSplitDly

# MonoSplitDly PROGRAMs

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

Flng+Tap

Flng+Pong

Flng+Xfeed

Flng+Bnce

DeepFl+Dly

5th+Tap

8ve+3plTap

4th5th+Xfeed

5th6th+Xfeed

PchFine+Tap

Chor+Tap

Chor+Pong

Chor+Xfeed

Chor+Bnce

Chor+Inverse

Feedbk

Feedbk

Time

Time

Time

Pitch

Pitch

Pitch

Pitch

Pitch

Feedbk

Feedbk

Time

Time

Time

Adjust Tap

1/4 Note

1/4 Note

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Program Descriptions

Routing

43

Program Descriptions

23 MonoSplitRvb

# MonoSplitRvb PROGRAMs

213

214

215

216

217

218

219

220

221

222

223

224

205

206

207

208

209

210

211

212

Tap+MidSiz

Pong+Large

Bnce+MidSz

Xfeed+Small

Xfeed+MidSiz

LiteFL+MidSz

LiteFl+Large

DeepFl+Small

DeepFl+MidSz

DeepFl+Room

4th5th+Room

5th6th+Room

4ths+Large

8ve+MidSz

PchFin+MidSz

Chor1+Small

Chor1+Large

Chor2+MidSiz

Chor2+Large

Chor3+MidSiz

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

MidRT

Livenes

Pitch

Pitch

MidRT

MidRT

Pitch

MidRT

MidRT

MidRT

MidRT

MidRT

Adjust Tap

Delay Time

Delay Time

Delay Time

Delay Time

Delay Time

Speed

PreDelay 1/32

PreDelay 1/32

Lexicon

Routing

44

MPX 500 User Guide

24 Dual Mono

# Dual Mono PROGRAMs

233

234

235

236

237

238

239

240

225

226

227

228

229

230

231

232

Tap | Small

Tap | MidSz

Tap | Large

Tap | Room

DeepFl | Tap

DeepFl | Dot8

8ves | Tap

8ves | 3pl

Chor2 | Tap

Chor2 | Dot8

LiteFl | Large

DeepFl | Large

8ves | MidSz

4ths | Large

Chor1 | Room

Chor2 | Room

Adjust

MidRT

MidRT

MidRT

Livenes

Feedbk

Feedbk

Pitch

Pitch

Feedbk

Feedbk

MidRT

MidRT

MidRT

MidRT

Livenes

Livenes

Program Descriptions

Tap

Delay Time

Delay Time

Delay Time

Delay Time

Speed (1/4 Note)

Speed (dotted 1/4 Note)

Delay Time

Delay Time

Delay Time

Delay Time

Speed

Speed

PreDelay 1/32

PreDelay 1/32

45

MPX 500 User Guide MIDI Operation

MIDI Operation

MPX 500 MIDI Behavior

The MPX 500 “learns” Program Change and Continuous Controllers in its Learn Mode. All of the parameters controlled by the front panel Edit knobs, as well as the Bypass and Tap buttons are supported.

As all MPX 500 messages use a single, selectable MIDI Channel, before using any of the MIDI control features, you should go to System Mode and select the MIDI Channel you want to use. (See System

Parameters.)

Any of the 16 parameters controlled by the Edit knobs can be patched to Continuous Controllers.

CCs and Program Change messages can be patched to

Bypass and Tap.

Program Change messages can also be used to load programs.

47

MIDI Operation Lexicon

Using Program Change Messages for Program Load

The MPX 500 will allow loading of all of its preset and User programs via standard MIDI Program

Change messages. It also conforms to the use of MIDI controller 32 to perform Bank Select. The MPX

500 banks are ordered numerically from 0-24.

Here’s how it works. If a standard MIDI Program Change is sent to the MPX 500, Program Change messages 0-9 will load programs the first ten programs from the current Bank.

If a Bank Select message (controller 32) precedes a Program Change message, any of the MPX 500 programs can be loaded.

For example, Program Change 1 with the Plate Bank selected, will cause the Small Plate program to be loaded. Sending controller 32 with a value of 24 (or higher), followed by Program Change 1, loads the first program of the User Bank. Sending controller 32 with a value of 1, then Program Change 2, loads the second program (Slope Down) in the Gate Bank. Sending controller 32 with a value of 8,

.

then program change 4 will load the last program (Slap Chorus2) in the Chorus Bank

Once a bank is selected, all subsequent Program Change messages will select programs within that bank until a new value for controller 32 is received, or until another PROGRAM or BANK selection is made from the front panel.

This function can be disabled with the MIDI Program Change parameter in System Mode.

0 Plate

1 Gate

2 Hall

3 Chamber

4 Ambience

5 Rooms

6 Tremolo

7 Rotary

8 Chorus

MPX 500 Program Banks

9 Flange

10 Detune

11 Pitch

12 Delay/Echo

13 Special FX

14 Flange-Delay

15 Pitch-Delay

16 Chorus-Delay

17 Delay-Reverb

18 Flange-Reverb

19 Pitch-Reverb

20 Chorus-Reverb

21 MonoSplitDly

22 MonoSplitRvb

23 Dual Mono

24 User

48

MPX 500 User Guide MIDI Operation

Learning Continuous Controllers

The MPX 500 recognizes Pitch Bend, AfterTouch and MIDI Continuous Controllers 1-31 and 33-119.

To Learn a Continuous Controller:

1.

Simultaneously press Store and Tap/Cancel to enter Learn Mode. (The LEDs of both these buttons will light to indicate Learn Mode is active.)

2.

Move one of the MPX 500 front panel controls (Edit Knob 1-4 with any of the four edit pages displayed, Bypass or Tap) to assign it to the controller. (Make sure that the Edit knob you want assigned is displayed before you move its corresponding Edit knob. The selected knob's name will appear highlighted and its current controller number and range will be displayed.)

3.

Move the MIDI controller through its full range. To use only a fraction of the controller’s range, limit your movement to the desired range. An indicator will appear on the display to indicate incoming

MIDI activity.

You can also dial up the controller you want with the Edit knob. In this case, the controller is automatically set to full range (0-127).

4.

Press Store to commit to the assignment.

5.

To assign another parameter or front panel control to a MIDI controller, repeat steps 2 - 5.

6.

Simultaneously press Store and Tap/Cancel to exit.

NOTE: When a MIDI controller is assigned to

Bypass or Tap, moving it through the mid-point of its Learned range will execute a “press” of the front panel button.

49

MIDI Operation Lexicon

Activating Bypass or Tap functions with Program Change Messages

The MPX 500 recognizes MIDI Program Changes 100-127 (101-128 on some MIDI devices) on any channel. To assign a Program Change message to Bypass or Tap:

1.

Simultaneously press Store and Tap/Cancel to enter Learn Mode. (Both LEDs will light to indicate Learn Mode is active.)

2.

Press the front panel button you want to control (Bypass or Tap).

3.

Send a MIDI Program Change to the MPX 500. The display MIDI indicator will come on to indicate incoming MIDI activity.

4.

Press Store to commit to the assignment.

5.

Simultaneously press Store and Tap/Cancel to exit.

50

MPX 500 User Guide MIDI Operation

To aid MIDI controllers (such as some foot controllers) which do not allow repeated Program

Change messages to be sent by a single button, the MPX 500 learns the next highest Program

Change along with every Program Change message it learns for Bypass and/or Tap. For example, if you Learn Program Change 20 as the source for Bypass, Program Change 21 will also control Bypass functions. To avoid conflicting Bypass and Tap assignments, leave a space between the two buttons’ assignments. (i.e. if you learn Program Change 20 for Bypass, remember that 21 will also be learned, so you will have to jump to Program Change 22 (and 23) for Tap.

Clearing a Learned Assignment

1.

Simultaneously press Store and Tap/Cancel to enter Learn Mode.

2.

Turn the front panel control that you want to clear (Edit Knob 1-4 with the assigned parameter displayed), Bypass or Tap) counterclockwise until None is displayed.

3.

Press Store to execute.

3.

Repeat Steps 2 and 3 to clear another front panel assignment.

5.

Simultaneously press Store and Tap/Cancel to exit.

Learnable Front Panel controls and

Assignable MIDI Sources

MIDI MIDI

Front Panel Controllers Pgm Change

Control 1-31, 33-119 100-127

Mix

Effects Lvl/Bal

Adjust

Bypass

Tap

Yes

Yes

Yes

Yes

Yes

No

No

No

Yes

Yes

51

MIDI Operation Lexicon

MIDI Clock

The MPX 500 recognizes MIDI Clock messages and applies the tempo (40-400 BPM) to any program which utilizes the Tap-tempo feature. Connect a MIDI device which outputs MIDI Clock (such as the

MPX R1 foot controller or a MIDI sequencer) to the MPX 500 MIDI IN jack, to have the MPX 500 automatically recognize and begin to process the MIDI clocks. When you change tempo on the connected device, the MPX 500 will follow along and adjust its delay times or rates to match the tempo.

This can be disabled with the MIDI Clock parameter in System Mode.

MIDI Dumps

MIDI Dumps allow you to back up User programs, the currently running program, or your System Mode settings and Learned patch assignments, to a storage device (typically, a sequencer).

MIDI Dumps are performed in System Mode. To perform a dump of the User programs, the current program, or all of the System Mode parameter settings:

1.

Press System. The LED will light to indicate you are in System Mode.

2.

Turn Edit Knob 1 to select:

Dump User Programs

Dump Current Program

Dump System settings and Learned patch assignments

3.

Press Store to execute the selected dump.

4.

Press System again to exit System Mode.

NOTE: Dumps will not be executed unless the System parameter MIDI Out/Thru is set to Out (the default setting.)

52

MPX 500 User Guide MIDI Operation

MIDI Implementation

Lexicon MPX 500

Function

Basic

Channel

Mode

Default

Channel

Default

Messages

Altered

Note

Number

Velocity

True Voice

Note ON

Note OFF

Keys

Channels

After

Touch

Pitch Bender

Control

Change

Program

Change True #

Transmitted

X

X

X

X

X

X

X

X

X

X

X

System

Exclusive

System

Common

System

Real Time

Aux

Messages

Bank Select

Lexicon

Real-Time non Real-Time

:Song Pos

:Song Sel

:Tune

:Clock

:Commands

:Local ON/OFF

:All Notes OFF

:Active Sense

:Reset

Notes:

Mode 1: OMNI ON, POLY

Mode 3: OMNI OFF, POLY

X

X

X

X

O

X

X

X

X

X

X

X

Mode 2: OMNI ON, MONO

Mode 4: OMNI OFF, MONO

O

X

X

X

O

X

X

O

X

X

X

X

Recognized

1

1-16

Mode 2

X

X

X

X (Off=9n v=0)

X

X

OX

OX

OX

0-15=1-16

Remarks

Selected in System Mode

Used as controller

Selected in System Mode used as controller, Learned

1-119 (0 and 32 used as Bank Select)

Learned

100-127 ignored; Program message

0-99=Program Change 1-100 for current Program Group as applicable

Product ID=20 (decimal)

Device ID=MIDI Channel

0-15 = 1-16

O : Yes

X : No OX: Selectable

53

MPX 500 User Guide Specifications

Audio Inputs

Connectors: XLR/TRS balanced

Level: +20 to +8dBu full scale

Impedance: 50K bal.; 25K unbal.

A/D: 24-Bit Sigma Delta,

20Hz-20kHz

±

1dB

Crosstalk: -96dB @1kHz

A/D Dynamic Range : 105dB, typical

Analog Audio Outputs

Connectors: XLR/TRS balanced

Level: +26dBu balanced;

+20dBu unbal.

Impedance: <600

D/A: 24-Bit Delta Sigma;

20Hz-20kHz

±

1dB

Crosstalk: -96dB @1kHz

D/A Dynamic Range : 101dB, typical

Digital Audio I/O

Connectors: Coaxial RCA;

S/PDIF (IEC-958, CP-340)

System Sample Rates

Internal Clock and S/PDIF Input:

44.1, 48kHz

Display

150 x 32 LCD, Backlit

Footswitch

Tip/Ring/Sleeve phone jack for

Bypass and Tap (optional)

MIDI Interface

Connectors: IN, OUT/THRU

Specifications

Power Requirements

90-250V 50-60Hz; 12.5W

3-pin IEC Connector

Dimensions

19"Wx 1.75"H x 5.5"D

(483x45x140.25mm)

Weight

3 lbs (1.4kg)

Environment

Operating Temperature: 32

°

-104

°

F

(0

°

-40

°

C)

Relative Humidity:

95% non-condensing

RFI/ESD

FCC class B; European EMC

Directive 89/336/ECC

Specifications subject to change without notice.

55

Lexicon, Inc.

3 Oak Park

Bedford MA 01730-1441 USA

Telephone: (781) 280-0300

Fax: (781) 280-0490

06/00 • Part No. 070-14116 • Rev 1

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Key Features

  • 240 presets
  • Dual-channel processing
  • Tempo-controlled delays and modulation rates
  • MIDI Learn mode
  • Built-in power supply
  • Footswitch control of Tap and Bypass functions
  • Software-selectable MIDI OUT/THRU port

Frequently Answers and Questions

What types of effects are included in the MPX 500?
The MPX 500 includes classic reverb programs such as Ambience, Plate, Chamber and Inverse, as well as Tremolo, Rotary, Chorus, Flange, Pitch, Detune, 5.5 second Delay and Echo.
How many programs are available on the MPX 500?
The MPX 500 has 240 presets.
Can I control the MPX 500 with a footswitch?
Yes, the MPX 500 can be controlled with a footswitch for Tap and Bypass functions.
Can I learn MIDI assignments on the MPX 500?
Yes, the MPX 500 has a Learn mode that allows you to assign MIDI controls to front panel controls.
How do I set the tempo on the MPX 500?
You can set the tempo by tapping the Tap button twice in time with the music, using audio input, or by sending MIDI Clock messages.

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