Lexicon MPX G2 User Manual
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Lexicon MPX G2 User Manual

Lexicon guitar effects processor user guide mpx g2
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  • Page 1 MPX G2 Guitar Effects Processor User Guide...
  • Page 2 Vox are trademarked by their respective manuafacturers. JamMan is a trademark of Lexicon, Inc Copyright 1998 Lexicon Inc. All Rights Reserved. Lexicon Inc. • 3 Oak Park • Bedford MA 01730-1441 USA • Telephone 781-280-0300 • Fax 781-280-0490 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN...
  • Page 4 Dansk Vigtig information om sikkerhed Gem denne vejledning til senere brug. Følg alle anvisninger og advarsler på apparatet. Apparatet skal altid tilsluttes den korrekte spænding. Der henvises til brugsanvisningen, der indeholder specifikationer for strømforsyning. Der gøres opmærksom på, at ved varierende driftsspændinger kan det blive nødvendigt at bruge andre lednings- og/eller stiktyper.
  • Page 5 Deutsch Wichtige Sicherheitsanweisungen Heben Sie sich diese Sicherheitsanweisungen auch für später auf. Befolgen Sie alle auf der Vorrichtung stehenden Anweisungen und Warnungen. Immer nur mit der richtigen Spannung verwenden! Die Gebrauchsanweisungen des Herstellers informieren Sie über die elektrischen Anforderungen. Vergessen Sie nicht daß bei verschiedenen Betriebsspannungen ggf. auch verschiedene Leitungskabel und/oder Verbindungsstecker zu verwenden sind.

  • Page 6: Table Of Contents

    Using Soft Sat ... 1-13 Input Level and Clip Indicators ... 1-13 Aux In and Clip Indicators ... 1-13 2. Basic Operation MPX G2 Menus ... 2-1 Loading and Playing with Programs ... 2-2 Program Load ... 2-2 Effect Bypass ... 2-3 Insert Bypass ...
  • Page 7 Complete details on all of the MPX G2 System parameters Effect Editing ... 3-1 The MPX G2 Edit Menus ... 3-3 Mix ... 3-4 Adjusting Pre-Gain and Post-Gain Level ... 3-4 Speaker Sim ... 3-5 Automatic Speaker Sim Routing ... 3-6 Noise Gate ...
  • Page 8 Accessing Programs ... 6-1 Controlling MPX G2 Tempo Rate with MIDI Clock ... 6-2 MIDI Tempo Control ... 6-2 Using the MPX G2 as a MIDI Clock Source ... 6-2 Slaving two or more MPX G2s ... 6-3 Controller Quirks ... 6-4 The Knob, Footpedal and Footswitch as MIDI Controllers ...
  • Page 9 Notes on Controlling Effect Parameters ... 7-2 Notes on the Effect Descriptions ... 7-2 Gain Effects ... 7-3 Effect1 and Effect2 ... 7-8 Complete details on all of the MPX G2 Effects Chorus Effects ... 7-21 Delay Effects ... 7-29 Tone ... 7-3 Crunch ... 7-3 Screamer ...
  • Page 10 1-Band (D) and 2-Band (D) ... 7-41 Fc Splitter ... 7-41 Crossover ... 7-42 Volume (M), Volume (S) and Volume (D) ... 7-42 PedalVol and ExtPedalVol ... 7-43 8. MPX G2 Internal Controllers Knob ... 8-1 LFO1 and LFO2 ... 8-1 Random Generator ... 8-2 A/B Glide ...
  • Page 11 “great amp” portion of the equation inside of our effects processor, we needed to make the MPX G2 capable of putting effects in two places at the same time — between the guitar and your amp (like stomp boxes) or in your amp’s effects loop (like rack effects).

  • Page 12: Introduction

    Visual feedback is available every step of the way when you're using the MPX G2, with lighted buttons indicating the state of the unit and alerting you to extra features available from the front panel. A large numeric display shows program (and patch) numbers.
  • Page 13 About the manual To get the most out of the MPX G2, we suggest that you invest the time to explore this manual. We think you’ll agree that the time spent investigating will reward you with enjoyment of its full capabilities.

  • Page 14: Product Overview

    Input/Output Dual-function knob controls input and out- put levels. Level and Clip LEDs Effect Select: Gain, Effect1, Effect2, indicate presence of Chorus, Delay, Reverb, EQ signal and overload Buttons light to indicate effect is active. In (input signal greater Program mode, pressing button turns off LED than -0.1dB).

  • Page 15: The Rear Panel

    MPX G2 User Guide The Rear Panel MIDI 7-pin DIN connector for MIDI IN or powered bidirectional MIDI remote. THRU 5-pin DIN connector passes any Insert Returns Level MIDI data received without change. Controls the input level of the Insert Returns.

  • Page 16: Installation Notes

    You’re here because you want to play with the MPX G2 RIGHT NOW. Plenty of time to read the manual later right? OK. First things first. If the MPX G2 isn’t fresh out of the box, let’s make sure that all of the internal parameters are set to their original factory settings. (This won’t affect any user programs.)

  • Page 17: Stand Alone

    5. Select your guitar’s most powerful pickup, turn the guitar volume control up 6. Watch the Level and Clip LEDs above the MPX G2 Input/Output knob. If the 7. While playing, slowly turn up the front panel Output knob until you reach a Now you’re ready to start listening to the Stand Alone programs (150-250).

  • Page 18: Amp Input Only

    Play and compare this level with the bypassed level — they should be very close. 12. With the program active, adjust the position of the MPX G2 Input knob to match the bypassed loudness. Now you’re ready to start listening to the Amp Input Only programs (100-149).

  • Page 19: Amp Input & Fx Loop

    By the way, as this setup involves making stereo effects loop connections and changing controls on both the front and rear of the MPX G2 and your amp, as well as playing, it might be helpful to have someone help you out with this.
  • Page 20 Clip LED only lights occassionally during your very loudest playing. Slowly turn up the MPX G2 front panel Output knob until the amp is back at its original loudness. (For most amps, this will be at about the 2 o’clock position.) You will hear a slight ticking as this knob is adjusted —...

  • Page 21: Connecting Other Equipment

    Another 1/4 inch T/R/S phone jack is provided for a footpedal (minimum 10k to maximum 100k impedance). Normally open or normally closed momentary switches are suitable. At power on, the MPX G2 assumes the switch is off. Use shielded, twisted-pair cable with shield connected to sleeve. See diagram on previous page.
  • Page 22 Ducker Auto Pan OctaBuzz Tremolo (M) SweepFilter Tremolo (S) 1-Band (M) Connecting an MPX R1 to the MPX G2 gives you stomp-box control of all of the MPX G2 effects. Product Overview Effect 2 Pedal Wah2 Volume (M) Volume (S)

  • Page 23: Signal Flow

    Following are diagrams showing signal flow in the MPX G2 Pre-Gain and Post- Gain paths. When combined, these two diagrams show the entire signal path between your guitar and the Main Outputs when the MPX G2 is used as a standalone processor. Depending on which effects are active in a given program (and where they are placed), the MPX G2 will automatically route around unnecessary analog circuits as well as A/D and D/A converters.

  • Page 24: Internal Grounding

    1/4" connectors are unbalanced mono jacks. For best performance use high-quality, shielded instrument cables. The MPX G2 has two high impedance guitar inputs: one on the front panel and another on the rear panel. Connecting to the front panel input will override a connection made at the rear panel input.

  • Page 25: Insert Send

    MPX G2 User Guide Lexicon The MPX G2 Insert Send is always active. When Gain is on, its signal is from the Insert Send Gain block output. When Gain is bypassed, or when no Gain effect is in the program, its signal is from the Gain block input. Note that this signal passes through a programmable level control (Edit mode: Mix: Send Level) and analog noise gate before leaving the unit via the Insert Send jack.

  • Page 26: Connecting The Main Outputs To Mono Input

    Soft Sat is a built-in analog limiter that precedes the A/D converters in the MPX G2. If the source to the MPX G2 is "hot", you can use Soft Sat to reduce the harshness caused by overloading the A/D converters. Press System, select the Audio menu, then select Soft Sat to turn the limiter On or Off.
  • Page 27 MPX G2 User Guide Lexicon 1-14...

  • Page 28: Basic Operation

    Beginning with a menu tree to guide you through the major areas of the MPX G2, this chapter focuses on the basics that you want to get to first — finding, loading, tweaking and storing programs. Basic Operation Basic Operation...

  • Page 29: Loading And Playing With Programs

    Program mode. Auto Load When first shipped, the MPX G2 will default to automatic program load, with all of the programs available in numerical order from 1 to 300. The top line of the display will show the DataBase sorting option "Sorted by number". The bottom Press and hold the Pro- line of the display will show a program name.

  • Page 30: Effect Bypass

    Insert Modes (FX Loop, Mix and Parallel) in Chapter 5: System Controls. NOTE: When the MPX G2 is connected to a guitar amp with an effects loop, the Insert button allows you to switch the guitar amp’s preamp in and out of the audio path.

  • Page 31: Programmable Bypass Modes

    Chapter 5: System Controls.) Tuner The MPX G2 has a built-in chromatic tuner. To activate the tuner, press and hold Bypass. When the tuning displays appear, release the button and play a note. The displays will show the name of the note you played, and also indicate how flat or sharp it is.

  • Page 32: A/B

    Chapter 4: Patching and Chapter 8: MPX G2 Internal Controllers.) The MPX G2 offers access to the most useful parameters of any program without having to enter a separate Edit mode. These parameters are available at any time by pressing Soft Row.

  • Page 33: Using The Database

    MPX G2 User Guide Using the DataBase The MPX G2 has a database sorting function which allows you to sort and search for programs in various categories. This is a great timesaver when you're looking specifically for guitar effects, or EQ effects, or for EQ effects for guitar. When shipped, the DataBase sorting option is set to "Sort by number", allowing you to...

  • Page 34: Program Store

    The upper line of the display shows the name of the currently running program. The lower line shows a user program number (251-300) and the name of the program currently stored there. (When the MPX G2 is shipped, the user programs are all "available".) The <...
  • Page 35 MPX G2 User Guide Lexicon...

  • Page 36: Editing

    This chapter describes all of the MPX G2 edit functions. As the first thing you are likely to want to modify in a program are its effects, this section starts there and then moves on to all of the functions available in Edit mode.
  • Page 37 Effect Select Option: Toe Switch (when an MPX R1 is connected) When an MPX R1 MIDI Remote Controller is connected to the MPX G2, the Toe Switch option allows you to use the R1 Toe Switch to turn the effect you are editing on, to bypass it, or to specify that the Toe Switch have no effect.

  • Page 38: The Mpx G2 Edit Menus

    The MPX G2 Edit menus give you access to all of the controls you need to create your own programs. Whether you want to view the meter display, re-route the effects in a program, or create an entirely new sound, you will find the tools you need in this section.

  • Page 39: Mix

    In the MPX G2, both the pre-gain and post-gain paths have independent Adjusting Pre-Gain and programmable level controls. Be sure to read about MPX G2 signal flow in Post-Gain Level Chapter 1. The Send parameter controls the level of the Pre-Gain signal leaving through the rear panel Send jack.

  • Page 40: Speaker Sim

    Be aware that the factory programs that use the speaker simulator were designed to sound best when the MPX G2 is used as a stand alone processor. These will sound overly dark if used through a guitar amp and speaker cabinet.

  • Page 41: Automatic Speaker Sim Routing

    MPX G2 User Guide Lexicon Automatic Speaker Sim Routing All routing to and from the Speaker Simulator is automatic, based on which Insert Return jacks are used and whether or not Split Preamp is loaded into the Gain effect block.

  • Page 42: Noise Gate

    — no matter how many effects the guitar is going through. When the MPX G2 is connected in front of an amp and/or in the effects loop, these two gates form an integrated noise reduction system that provides more than 120dB of attenuation.

  • Page 43: Meters

    MPX G2 User Guide Meters The G2 has a built-in meter array that allows you to simultaneously view guitar input level, main output levels as well as the levels of all individual effects blocks, except Gain. The meters are displayed in fixed order: Input, Effect 1, Effect 2, Chorus, Delay, Reverb, EQ, Output.

  • Page 44: Effect Order

    Selecting Effect Order from the Edit menu allows you to put the seven MPX G2 Effect blocks in any order you wish. Press to display the current ordering and routing configuration. An ordering display such as the one shown below will appear.

  • Page 45: Routing Map

    Before going into the details of the Routing Map, it's worthwhile to review basic signal flow through the MPX G2. The overall signal flow through the MPX G2 is divided into two paths: a pre-gain path and a post-gain path. The six DSP effect blocks (Effect 1, Effect 2, Chorus, Delay, Reverb and EQ) can be placed in any combination on either the pre-gain or post-gain portions of the audio path.
  • Page 46 (1, 2, G, C, D, R and E). This is also the way each block is represented in the MPX G2 Routing Map display. MPX G2 inputs and outputs are represented by the letters I and O.

  • Page 47: How To Change Routing Connections

    How to Change Routing The signal path within the MPX G2 can be split into two parallel stereo paths, and Options once split, the split paths can be merged together again. The split paths are referred to as Upper and Lower.

  • Page 48: Routing Examples

    In the following examples we’ve selected three presets that demonstrate creative applications of the routing and connection capabilities of the MPX G2. Example 1: Program 198 Cordovox (Stand Alone) This program produces the sound of a vintage Cordovox rotary speaker. The Cordovox is a speaker cabinet containing a fixed 8-inch speaker mounted behind a rotating baffle.
  • Page 49 MPX G2 User Guide Example 2: Program 61 Octave Fuzz (Amp Input + FX Loop) The Octave Fuzz program combines sub-octave and Octavia-style effects with analog distortion. When connected to the high gain input of a guitar amp, many classic Octave Fuzz effects can be produced.
  • Page 50 The Infinite Echo program is an analog tape delay effect with auto ducking and infinite feedback. It demonstrates the routing techniques used to create an analog feedback path. This unique feature of the MPX G2 makes it possible to recreate the sound of classic analog delay, chorus and flanger effects.

  • Page 51: Notes And Tips On Routing

    When changing the routing options, work from left to right — from the input block to the output block. The MPX G2 will only display the routing options that are available in the current configuration. For example, if all seven blocks are on the upper path, the only available option will be Split.

  • Page 52: Controllers (Knob, Lfo 1 And 2, Random, A/B And Env )

    This Edit menu selection provides controls for making individual adjustments and assignments for each of the MPX G2 internal controllers: Knob, LFO 1, LFO 2, Random, A/B and Env. This section describes controller editing. For detailed information on the controllers themselves, see Chapter 8.

  • Page 53: Tempo

    Tap Source and Source Level, allow you to select the way in which the actual tempo in BPM is determined for each effect. The MPX G2 gives you unique control over tempo. In the MPX G2, any delay parameter and any time-based modulator (LFO, etc.) can be individually assigned to an absolute time value, or assigned to a tempo value.

  • Page 54: Source

    Tap with an averaged value. Assign the Tap function to any of the MPX G2 Internal, MIDI or MIDI controllers(None, Off, On, Knob, Puls1, Tri1, Sine1, Cos1, Puls2, Tri2, Sine2,...

  • Page 55: Soft Row Parameter Assignment

    Your selections are immediately available for quick editing whenever the front panel Soft Row button is pressed. The MPX G2 allows you to individually tag all 250 programs for easy sorting by DataBase Assignments Style and/or Effect and Application type. The DataBase controls in the Edit menu let you assign your programs to any (or all) of the categories shown below.
  • Page 56 When you select DataBase, the display will show a selection like the one below. The upper line identifies the selection category (guitar style, effect type or application type. DBase App Type FX Loop: The lower line shows the Style, Effect or Application type and the current DataBase selection (YES or NO).

  • Page 57: Copy Effect

    MPX G2 User Guide Copy Effect Copy Effect lets you take an Effect from any program in the MPX G2 and copy it into the current program. To use this function, select Copy Effect from the Edit menu. Press the > button and use the knob to display any of the MPX G2 programs.

  • Page 58: Patching

    You can create as many as five patches. You can patch multiple parameters to a single controller, or patch multiple Sources to a single Destination. This chapter contains all the information you need to use the MPX G2 program patching system. Global Patching is described in Chapter 5: System Controls.

  • Page 59: Selecting A Source And Destination

    • values will set the controller to match the full range of its travel to the full range Puls2 • of the Destination parameter. To customize your patches, the MPX G2 provides Tri2 • LFO2 a full set of additional controls. Each of these is described in the following...

  • Page 60: Changing The Range Of The Source Controller

    With Src selected, pressing Options will allow you to specify range limits for the controller you have selected. With the following screen displayed, use the < and > buttons to select the Min, Mid or Max field, and the knob to set the value from 0-127.

  • Page 61: Copying Patches

    MIDI controller to automatically assign it as the Source for the current patch. The MPX G2 will also recognize the MIDI channel of the controller and reset to that channel for receipt of all incoming MIDI messages.

  • Page 62: Changing The Range Of The Destination Parameter

    For most applications, the default full-range Destination values are all you will want, as these allow your selected Source to exert direct control over the full range of parameter values. In other cases, you may want to adjust the Destination values to a more limited range, or establish a nonlinear relationship between the controller and the parameter values.

  • Page 63: Linear Or Nonlinear Control

    MPX G2 User Guide Linear or Nonlinear From either of the Destination Values screens, pressing Options will allow you Control to set the control relationship between your Source and Destination, temporarily suspend the current patch, or to clear one or more patches entirely.

  • Page 64: Suspending And Clearing Patches

    Continuing to press > will step you to the Suspend option. Selecting Suspend temporaily suspends the patch until such time as you return to the Patch System Destination Option and select Unsuspend. Continuing to press > will step you to the options: Clear 1-5, and Clear All. These allow you to select any or all patches to be cleared.
  • Page 65 MPX G2 User Guide Lexicon...

  • Page 66: System Controls

    A/D overload at signal levels above -3dBfs is reduced. In- creased analog distortion will occur in the range of -3dBfs to 0dBfs. The available settings are On and Off. In Output Mode, select Stereo or Mono as the output mode of the MPX G2. System Controls System Controls...

  • Page 67: Modes

    Program mode. Each MPX G2 program has its own Post Mix and Level parameters, as well as individual mix and level settings for each Effect. These settings are stored as integral parts of the program.

  • Page 68: Memory Protect

    This control allows you to adjust the brightness of the alphanumeric display along a range of 0-15. The setting of Sleep mode determines the behavior of the MPX G2 when it is left idle. When it is on, a set of messages is cycled across the display. Like a computer screen saver, any activity on any panel control will automatically return the MPX G2 to normal operation.
  • Page 69 FX Loop allows gear to be connected in series between the pre-gain and post- gain paths. This is the most useful setting when the MPX G2 is used with a guitar amp that has an effects loop, when an external processor is connected to the MPX G2, or whenthe MPX G2 is used as a stand alone preamp with effects.

  • Page 70: Post Bypass

    "Setup". Five Setups can be stored in the unit, allowing you to quickly reconfigure the MPX G2 at any time. The Setup Load and Setup Store controls allow you to save your current configuration as Setup 1-5 and to reconfigure the MPX G2 to any of these stored states.
  • Page 71 Turn the knob to select any Setup number 1-5. Press Store again. The display will show: Then the MPX G2 will return to normal operation with the new Setup parameters in effect. The procedure for storing a new Setup is almost identical, but includes the option of assigning a name to your Setup.

  • Page 72: Midi

    To store your new Setup, press Yes. To return to the Setup Store display without saving the Setup, press No. This menu contains all of the MPX G2 MIDI controls. The operation of each of these controls is described here. More information on working with MIDI is presented in Chapter 6.

  • Page 73: Ctl Send/Options: Midi Reset

    Ctl Send from the MIDI menu and press Options, then press Yes. (The access MIDI Reset. message will be transmitted from the MPX G2 as well). If you do not want to Press Yes in response to the display prompt to reset all perform the reset, press Options to exit.

  • Page 74: Soft Thru

    0-126 or All to identify the MPX G2. Setting this parameter to On will merge data (Program Change, Continuous Controllers and Note messages) received via the MPX G2 MIDI IN port with the messages transmitted through the MIDI OUT port. The default for this parameter is Off.

  • Page 75: Midi Maps

    MPX G2 User Guide MIDI Maps Program Change 0-127 can be mapped to any MPX G2 program. Three 128- element maps are available. When you select MIDI Maps from the System menu, you can select any one of the three maps and make your selections from screens like the ones shown below.

  • Page 76: Program Chains

    This control allows you to completely clear only a specified section of assignments for the active map. The MPX G2 has 10 internal program chains, each made up of ten "links". You can assign any program to any link in the chain with the controls in this menu.

  • Page 77: Initialize

    Chain. Initialize Selecting any item in the Initialize menu will restore portions of the MPX G2 to their factory default settings. These controls allow you to perform a complete reset of the unit to its factory defaults, or to reset only selected functions.

  • Page 78: Clear Programs

    Resets DataBase assignments for all programs. This will remove DataBase assignments from programs 251-300. MPXG2/R1: Resets the MPX G2 and any connected MPX R1 to the original factory settings of all remote parameters such as Bypass Patches, Continu- ous Controller assignments, etc.

  • Page 79: Copy Programs

    MPX G2 User Guide The Store button LED will flash, indicating that the MPX G2 is armed to perform the clear procedure. Press Yes to execute the clear operation. Note that this will override the Memory Protect function if it is on.

  • Page 80: Global Patches/Options: Midi Learn And Dst Edit

    Ten global patch assignments are available which allow you to assign an external controller to the MPX G2 Post Mix or Send and Post Level controls, or to individually control any one of the MPX G2 Effect Mix or Level controls. Global patches override, but do not clear, program patches with the same parameter Destination.

  • Page 81: Calibrate Pedal

    MPX G2 User Guide Calibrate Pedal This control allows you to achieve full range output of any connected 10k-100k continuously variable footpedal. From the main System menu, select Calibrate Pedal and press Yes. A display prompt will allow you to choose to continue the calibration procedure, overwriting any pre-existing pedal settings, or to discontinue the procedure.

  • Page 82: Tuner Mode

    Three controls are available here for customizing the MPX G2 Tuner settings: Cal, Offset and Bypass. Cal Use this parameter to set the Tuner's "A" pitch. The factory setting is A=A. If you change this, for example, to A=G, you can tune your guitar down a whole step —...

  • Page 83: Speaker Sim Mode

    Setting Noise Gate mode to Global applies the current settings of the Noise Gate to all programs in the MPX G2. In this mode, you can edit the Noise Gate parameters as usual. Note, however, that to save the settings with a program, the mode must be set to Program.

  • Page 84: Midi Operation

    System mode MIDI menu. All of these controls are described in Chapter 5: System Controls. Several are repeated here for your convenience. Before using the MPX G2 with other MIDI devices, all devices must be set to the same MIDI channel. To set the MPX G2 to receive MIDI: Set the controller you will be using (keyboard, sequencer, other MPX G2, etc.) to transmit on any MIDI channel (1-16).

  • Page 85: Controlling Mpx G2 Tempo Rate With Midi Clock

    MPX G2 User Guide Controlling MPX G2 Tempo Rate with MIDI Clock MIDI Tempo Control Using the MPX G2 as a MIDI Clock Source MIDI Out (MIDI Clock) MIDI In Edit mode Tempo Source set to MIDI MIDI In MIDI Out...

  • Page 86: Slaving Two Or More Mpx G2S

    The configuration below shows the MIDI connections for controlling the MPX G2 simultaneously with MIDI Clocks from a sequencer, and messages from another MIDI controller. Note that the controller is set to "local control off" and the sequencer is set to "echo input".

  • Page 87: Controller Quirks

    MPX G2 send MIDI Controller messages whenever you Footpedal and adjust it. This makes it possible to record real-time control of MPX G2 effects with Footswitch a MIDI sequencer — a simple but quite powerful way to automate effects.

  • Page 88: Program Change Messages

    User programs 201-250 Three 128 element MIDI maps are stored internally. Program Change 0-127 can be mapped to any MPX G2 program. When first shipped, the MPX G2 has each map load with the following defaults: Map 1, 2 or 3...

  • Page 89: Automation

    MPX G2s to be slaved to a single MPX G2 acting as a master. The current mode (Program, Edit or System) of the slave does not follow the master, but the actual parameter values do.

  • Page 90: Dynamic Midi

    The System mode MIDI menu provides a Dump control which allows selection of the following types of bulk data to be dumped directly from the MPX G2 to another MPX G2, or to editor/librarian software. Options allows you to select MIDI transmit speeds of Slow, Medium Slow, Medium Fast or Fast.

  • Page 91: Midi Implementation Chart

    MPX G2 User Guide Lexicon MPX G2 Digital Effects System Function Basic Default Channel Changed Mode Default Messages Altered Note Number Velocity Note ON Note OFF After Keys Touch Channel Pitch Bend Control 1-119 Change Program Change Bank Select System...

  • Page 92: The Effects And Parameters

    The MPX G2 contains a library of 76 effects, each of which is described in detail in this section. The effects are organized into seven effect types corresponding to the Effect Selector buttons on the front panel (Gain, Effect1, Effect2, Chorus, Delay, Reverb and EQ).

  • Page 93: Notes On Combining Effects

    Notes on Any effect parameter in the MPX G2 can be patched for real time control. In some cases, audible artifacts may be produced, depending on the particular param- Controlling Effect eter and the rate and range of control.

  • Page 94: Gain Effects

    MPX G2 is used without an external guitar amp. When used as a stomp box, Tone can radically alter the sonic char- acter of you guitar amp, providing an alternative channel.

  • Page 95: Screamer

    MPX G2 User Guide Screamer Screamer is an analog model of a vintage Tube Screamer over- drive (powered by a fresh carbon- zinc battery). Care has been taken to make the behavior of this effect accurate both sonically and elec- tronically.

  • Page 96: Overdrive

    The Feel parameter is a unique feature of Lexicon’s Dynamic Gain analog alogrithms. In this effect, it mimics the subtle changes in dis- tortion dynamics caused by differ- ent power supplies.

  • Page 97: Distortion

    * = Interpolated; ( ) = Option of preceding parameter Unlike the other MPX G2 Gain effects, Preamp was not designed to function as a stomp box to use in front of your amplifier. It is a fully featured, programmable analog guitar preamp.
  • Page 98 Split Preamp is the same analog effect as Preamp, except that it has a built-in parallel path that feeds the direct, clean guitar to the MPX G2’s post-gain section. This allows you to create programs that have preamp and right channel direct guitar sounds simultaneously.

  • Page 99: Effect1 And Effect2

    Detuners are also traditionally used to turn a six- string guitar into a twelve-string, or an in-tune piano into a honky-tonk. The MPX G2 detuners are opti- mized to provide very fine amounts of pitch shift. Detune (M) is a single-channel...
  • Page 100 Glide Off, On These effects use more processing resources than the detuners. Shift (S) and Shift (D) are among the largest effects in the MPX G2. * = Interpolated; ( ) = Option of preceding parameter Shift (S) Shift (D)
  • Page 101 MPX G2 User Guide Diatonic Hmy DiatonicHmy is an “intelligent” pitch shifter. The effect will auto- matically shift the pitch of an in- coming monophonic notes to the correct harmony note in the se- lected key and scale. You select the key and scale —...

  • Page 102: Panner

    Panner Mix* 0-100% Level* Off, -89 to +6dB Pan 1* 50L to C to 50R Pan 2* 50L to C to 50R Auto Pan Mix* 0-100% Level* Off, -89 to +6dB Rate* 0-50Hz or 1:24-24:1 cycles/beat (Rate Units) 0-100% Depth* 0-100% Phase 0°-270°...

  • Page 103: Tremolo (M) And Tremolo (S)

    MPX G2 User Guide Tremolo (M) and Tremolo (S) In Tremolo (M), the left and right inputs are mixed together, then a local sinewave generator modu- lates the volume. In Tremolo (S) the left input is modulated by a local sinewave gen- erator before going to the left out- put.

  • Page 104: Customvybe

    CustomVybe 0-100% Level 0ff, -89dB to +6dB Rate 0-50Hz or 1:24-24:1 cycles/beat 0-100% Depth* 0-100% Phaser 0-100% Level Off, -89 to +6dB Rate 0-50Hz or 1:24-24:1 cycles/beat (Rate Units) 0-100% Depth* 0-100% -100 to +100% * = Interpolated; ( ) = Option of preceding parameter Dry/Wet ratio Amount of effect in processsed signal Custom Vybe rate or period ratio...

  • Page 105: Orangephase

    MPX G2 User Guide OrangePhase The sound and rate of this phase shifter are modeled on a vintage MXR Phase 90 stomp box — a signature component of the early Van Halen sound. Red Comp Red Comp is our take on the classic Dyna Comp stomp box.

  • Page 106: Blue Comp

    Blue Comp 0-100% Level 0ff, -89dB to +6dB Sense -72dB to +24dB Thrsh -83dB to 0dB Gain -72dB to +24dB ATime 0-2000 ms RTime 0-2000 ms DigiDrive1 and DigiDrive2 DigiDrive1 0-100% Level 0ff, -89dB to +6dB Drive 0-100 -72dB to +24dB -72dB to +24dB High -72dB to +24dB...

  • Page 107: Octabuzz

    MPX G2 User Guide OctaBuzz OctaBuzz is a very simple effect that mimics the “full wave rectifier” circuit used in many octave fuzz pedals, like the Octavia. Another signature Hendrix effect, (Purple Haze, Who knows, etc.) it is not a pretty sound, and requires a little effort to make it sing.

  • Page 108: Sweepfilter

    SweepFilter 0-100% Dry/Wet ratio Level* Off, -89 to +6dB Amount of effect in the processed signal 20-20000Hz Corner frequency offset of filter FRes* 1-100 Filter resonance: 7=a maximally flat filter Mod* 20-20000Hz added to corner frequency offset to produce corner frequency Scale* -100 to +100% scales Mod...

  • Page 109: Wah 1, Wah 2 And Pedalwah1, Pedalwah2

    Wah 1 and Wah 2 except the Sweep parameter is hard-wired to the Foot Pedal input on the MPX G2 rear panel. If you are using the MPX R1 MIDI Remote Controller, these effects will be automatically connected to the control pedal —...

  • Page 110: Volume (M), Volume (S) And Volume (D)

    PedalVol is the same as Vol- ume (S), except the Vol parameter is hardwired to the Foot Pedal in- put on the MPX G2. When using the MPX R1 MIDI Remote Con- troller, this parameter is automati- cally connected to the R1’s built-in pedal.

  • Page 111: Test Tone

    MPX G2 User Guide Test Tone Test Tone is an audio sine wave generator with its output quantized to correspond with the pitches of a chromatic scale (A = 440 Hz) over a nine-and-one-half octave range. It is provided primarily as a conve- nient way of generating test tones and tuning references.

  • Page 112: Chorus Effects

    The chorus effects are generally used to enhance a sound by modulating delay times and/ or frequency content in various ways. Of course, the classic effects of this type : Chorus, Flanger and Phaser are all here – along with several other variations such as: Rotary Cab, Aerosol, Orbits, Centrifuge, Comb 1 and Comb 2.

  • Page 113: Detune (M)

    Detuners are also traditionally used to turn a six- string guitar into a twelve-string, or an in-tune piano into a honky-tonk. The MPX G2 detuner is optimized to provide very fine amounts of pitch shift. Detune (M) is a single-channel...

  • Page 114: Flanger (M), Flanger24 (M) And Flanger (S)

    In the MPX G2, the Flanger ef- fects are two-tap delays. The first tap is fixed, and the second sweeps past it. Mixing the two taps to- gether creates a flanging effect.

  • Page 115: Rotary Cab

    MPX G2 User Guide Rotary Cab This effect simulates a Leslie speaker with one pair of stereo mics on the rotating low-frequency drum, and another pair on the ro- tating high-frequency horn. Bal sets the relative mix of Drum and Horn mics.

  • Page 116: Orbits

    Orbits 0-100% Level* Off, -89 to +6dB Rate1 0-50Hz or 1:24-24:1 cycles/beat (Rate 1 Units) PW 1 0-100% Sync1 -120° to +120° Dpth1* 0-100% Rate2 0-50Hz or 1:24-24:1 cycles/beat (Rate 2 Units) PW 2 0-100% Sync2 -120° to +120° Dpth2* 0-100% -100 to +100 Width*...

  • Page 117: Centrifuge1 And Centrifuge2

    MPX G2 User Guide Centrifuge1 and Centrifuge2 The Centrifuge effects have a pair of modulated left and right delays routed into a single auto panner. In these effects, mod and pan rate and depth (Rate1, Depth1) are modulated by an additional set of rate and depth controls (Rate2, Depth2).

  • Page 118: Comb 1 And Comb 2

    Comb 1 and Comb 2 Comb 1 0-100% Level Off, -89 to +6dB LoCut 100-10000Hz HiCut 100-10000Hz Comb 0-100 Notch -100 to +100 Rate 0-50Hz or 1:24-24:1 cycles/beat (Rate Units) 0-100% Depth* 0-100% -100 to +100 Phase 0°-270° * = Interpolated; ( ) = Option of preceding parameter Comb 2 Dry/Wet ratio Amount of effect in the processed signal...

  • Page 119: Volume (M), Volume (S) And Volume (D)

    PedalVol is the same as Vol- ume (S), except the Vol parameter is hardwired to the Foot Pedal in- put on the MPX G2. When using the MPX R1 MIDI Remote Con- troller, this parameter is automati- cally connected to the R1’s built-in pedal.

  • Page 120: Delay Effects

    All MPX G2 Delay effects allow you to choose how delay times will be displayed. Select any Time parameter and press Options. The following choices are available for each...

  • Page 121: Delay (M), Delay (S) And Delay (D)

    MPX G2 User Guide Delay (M), Delay (S) and Delay (D) Delay (M) is a simple mono de- lay with feedback. Delay (S) is a simple stereo de- lay with feedback. Delay (D) is a dual delay with feedback, crossfeedback, inde- pendent output level adjusts, and panners.

  • Page 122: Echo (M), Echo (S) And Echo (D)

    Echo (M), Echo (S) and Echo (D) Echo (M) Echo (D) 0-100% Level Off, -89 to +6dB Time 0-20000ms 1:24-24:1echo/beat, 0-22600 ft, 0-6880 M (Time Units) Time1 0-10,000ms 1:24-24:1echo/beat, 0-11,300 ft, 0-3440 M (Time1 Units) Time2 0-10,000ms, 1:24-24:1echo/beat 0-11,300 ft, 0-3440 M (Time2 Units) Lvl 1* Off, -95 to 0dB...

  • Page 123: Looper

    MPX G2 User Guide Looper In the Looper effect InMix con- trols the ratio of input to feedback into the delay. This parameter is ducked by the input level, so that louder signals route the input sig- nal into the delay, and softer sig- nals route the feedback signal into the delay.

  • Page 124: Jamman

    Mutes loop while On, restarts from beginning when Off JamMan parameters can also be controlled with MIDI Program Change messages when MPX G2 Program mode: Option is set to Show members of MIDI Maps. (See MIDI Pgm Maps in Chapter 5: System Controls.) * = Interpolated;...

  • Page 125: Ducker

    MPX G2 User Guide Ducker Similar to Looper, with the wet output getting quieter as the input gets louder. When Sense is at 0, no ducking will occur. At 100 the input will be ducked by even the lowest input levels.

  • Page 126: Reverb Effects

    The MPX G2's Global Reverb function allows reverb tails to ring out through program changes. (See Global Effects in Chapter 5: System Controls.)

  • Page 127: Plate

    MPX G2 User Guide Plate Plate effects were originally gen- erated by large, thin sheets of metal suspended upright under tension on springs. Transducers attached to the plate would transmit a signal which would, in turn, vibrate the plate. Because the plate provided...

  • Page 128: Gate

    Gate 0-100% Level Off, -89 to +6dB Time 140-700ms Link Off, On Diff 0-100% P Dly 0-250ms LoSlp -16 to +16 HiSlp -16 to +16 Xover 30Hz to 24.7kHz, Full Rt HC 525Hz-24.7kHz, Flat Shape 0-255 Spred 0-255 * = Interpolated; ( ) = Option of preceding parameter Dry/Wet ratio Amount of effect in the processed signal Reverb time for mid and low frequency signals...

  • Page 129: Eq Effects

    MPX G2 User Guide Lexicon EQ Effects At its simplest, equalization is the process of cutting and boosting certain frequencies to make portions of program material more or less audible. This is generally accomplished by combining filters which affect a specific “band” of frequencies together with gain controls.The three types of filters commonly used...
  • Page 130 1/6 octave 10.0 approximately 1/7 octave There are mathematical limits to how small the Q value can be in MPX G2 EQ effects. For any given frequency, the Q must be greater or equal to the frequency divided by 10,000. For example if the frequency is 5kHz, the actual Q value won’t go below 0.5.

  • Page 131: 1-Band (M), 2-Band (M), 3-Band (M) And 4-Band (M)

    MPX G2 User Guide 1-Band (M), 2-Band (M), 3-Band (M) and 4-Band (M) The 1-Band (M) effect provides a single band of double-precision parametric EQ. 2-Band (M), 3-Band (M) and 4- Band (M) have two, three and four bands, respectively, of double-pre- cision parametric EQ.

  • Page 132: 1-Band (D) And 2-Band (D)

    1-Band (D) and 2-Band (D) 0-100% Level Off, -89 to +6dB G-L, G-L1, G-L2 -72 to +24dB Fc-L, Fc-L1, Fc-L2 20-20000Hz Q-L, Q-L1, Q-L2 0.1-10.0 M-L, M-L1, M-L2 LShlf, Band, HShlf G-R, G-R1, G-R2 -72 to +24dB Fc-R, Fc-R1, Fc-R2 20-20000Hz Q-R, Q-R1, Q-R2 0.1-10.0...

  • Page 133: Crossover

    MPX G2 User Guide Crossover The Crossover effect is similar to Fc Splitter, but with only one crossover frequency, shared by low and high. In this effect, Level and Bal are not interpolated. Volume (M), Volume (S) and Volume (D)

  • Page 134: Pedalvol And Extpedalvol

    PedalVol is the same as Vol- ume (S), except the Vol parameter is hardwired to the Foot Pedal in- put on the MPX G2. When using the MPX R1 MIDI Remote Con- troller, this parameter is automati- cally connected to the R1’s built-in pedal.
  • Page 135 MPX G2 User Guide Lexicon 7-44...

  • Page 136: Mpx G2 Internal Controllers

    LFOs on and off in different ways based on the output levels of other MPX G2 controllers. PW allows you to dynamically modify the shape of LFO waveforms. Phase lets you change the phase of the Cosine relative to the other waveforms (Sine, Triangle, and Pulse).

  • Page 137: Random Generator

    OnLvl. Gate: Glide from A to B when Of the many presets in the MPX G2 that use this controller, the most straight- OnSrc value rises above OnLvl. Glides from B to A forward example is Program 47 Rotary Cab. In this preset, A/B is used to glide whenever OnSrc value between the fast and slow rates of a rotary speaker effect.

  • Page 138: Env

    Sw3: Value is 0 when foot switch 3 is off, 127 when foot switch 3 is on. Description Allows attack time to be shortened relative to overall response. 0=same as Resp, larger numbers shorten response. Responsiveness MPX G2 Internal Controllers Footswitch Controllers...
  • Page 139 MPX G2 User Guide Lexicon...

  • Page 140: Program Descriptions

    The 250 MPX G2 programs are organized into three major groups: 1-99: Amp Input + FX Loop programs designed to be used with the MPX G2 connected to a guitar amp with an effects loop 100-149: Amp Input Only programs designed to be used with the MPX G2...
  • Page 141 It’s baaaack!!!!!!! A medium-gain preamp with a chorus, reverb and a 20-second single loop JamMan! The MPX G2 front panel buttons or the MPX R1 control: The MPX R1 Toe Switch lets the pedal control volume (Toe Switch off) or wah (Toe Switch on).
  • Page 142 EQ, Wah and Octabuzz for a classic Hendrix sound. When the pedal is not controlling the wah, its acts as a power amp volume pedal. A/B adds more delay and reverb. Tap sets the echo time. MPX G2 Program Descriptions...
  • Page 143 (UniVybe, OrangePhase, Flanger, Chorus). Tap echo and plate reverbs are also built-in. MPX G2 programs 20 and 26-29 cor- respond to MPX R1 buttons 6-0. In these programs, the Toe Switch turns the wah on and off.
  • Page 144 MPX G2 Program Descriptions Programs 20 and 26-29 are variations of 21-25. Each offers the same combination of Wah, Screamer and modulation effects with the MPX R1 Toe Switch turning the wah on and off. This makes it possible to have the wah and modulation effects on at the same time.
  • Page 145 (Amp Input + FX Loop) activates pedal control of volume or wah. Tap set delay time and A/B increases the delay feedback time. MPX G2 programs 30 and 36-39 correspond to MPX R1 buttons 6-0. Programs 31-35 correspond to MPX R1 buttons 1-5.
  • Page 146 MPX G2 Program Descriptions 36 CompChorus+ A cleaner version of TS Chorus+ with BlueComp in place of the Screamer for cleaner tone. 37 CompDelay+ A cleaner variation TS Delay+ with BlueComp in place of the Screamer for cleaner tone. 38 CmpChsDly+ Cleaner version of TS ChorsDly+ with BlueComp in place of the Screamer for cleaner tone.
  • Page 147 They’re ready to go, if you want to add them to the mix. MPX G2 programs 40 and 46-49 correspond to MPX R1 buttons 6-0.
  • Page 148 MPX G2 Program Descriptions Programs 40 and 46-49 use the pitch shifter to produce harmony effects. All of the effects except Overdrive are in the effects loop. (Because the pitch effects are first, you can use the pedal to “float” notes into the delay and reverb.) A/B alternates between two harmony settings.
  • Page 149 A/B is patched so that B is wetter (more reverb or delay) than A. These programs will work well with your guitar amp’s clean or high-gain channels. MPX G2 programs 50 and 56-59 correspond to MPX R1 buttons 6-0.
  • Page 150 MPX G2 Program Descriptions 55 Chaos Dance This techno rhythm effect is produced by hitting the amp input with a randomized envelope filter and adding some delay and reverb in the effects loop. The pedal controls the filter’s overall brightness. Tap sets the pattern rate. Make the pattern dance with Rand Rate and LFO2 Rate in the Soft Row.
  • Page 151 MPX G2 User Guide Lexicon Programs 60-79 each contain a single effect. Use them alone, or as building blocks to Effects Collection create your own multi-effects programs from scratch. Use Copy Effect in Edit mode to (Amp Input + FX Loop) copy different combinations into a single program.
  • Page 152 The sweep of this wah is dynamically controlled by your playing. Similar to the sound of a Mu-tron III set to BP. 78 StereoChorus A lush Lexicon stereo chorus. 79 ClassicDetune A simple but gorgeous effect. The dual pitch shifter is used to independently detune the left and right sides of the stereo field.
  • Page 153 MPX G2 User Guide JamMan Programs 90-94 are set up to have the MPX G2 front panel buttons or the MPX R1 control: (Amp Input + FX Loop) 90 Jam1 Chrs+ Loads with Chorus and Hall Reverb. Press Gain for boost. The MPX R1 Toe Switch activates pedal control of volume or wah.
  • Page 154 Programs 100-149 are designed to be used with the MPX G2 connected to a guitar amp with no effects loop. Front Panel The Output control is unnecessary when the MPX G2 is used with an amp that doesn't have an effects loop.
  • Page 155 It’s baaaack!!!!!!! A medium-gain preamp with a chorus, reverb and a 20-second single loop JamMan! The MPX G2 front panel buttons or the MPX R1 control: The MPX R1 Toe Switch lets the pedal control volume (Toe Switch off) or wah (Toe Switch on).
  • Page 156 A recreation of the Phase 90 effect made famous by Eddie Van Halen. 131 Gray Flange The flanger that created the signature sound on Van Halen’s “Unchained”. 132 RedComp A recreation of the popular Dyna Comp compressor. MPX G2 Program Descriptions Effects Collection (Amp Input Only) 9-17...
  • Page 157 Mu-tron III set to BP. 138 StereoChorus A lush Lexicon stereo chorus designed to be used before your amp’s input. 139 Classic Detune This program puts a dual pitch shifter in front of your amp. It loads set to the classic ±8 cent values —...
  • Page 158 Programs 145-149 are set up to have the MPX G2 front panel buttons or the MPX R1 control: Tap = Record Loop A/B = Layer Delay = Clear Loop 145 Jam 1 S&H+ Loads with a Sample & Hold style effect. The MPX R1 Toe Switch activates pedal control of volume.
  • Page 159 After the preamp section is a lush wet chorus which enters a dual delay with Tap tempo control. The entire signal then goes through a classic Lexicon Large Hall. A/B switches gain from high-gain to bluesy clean. Great for leads! The MPX R1 pedal controls volume, which is the first effect in the chain so that you can create ethereal textural sounds.
  • Page 160 159 JamMan It’s baaaack!!!!!!! A medium-gain preamp with a chorus, reverb and a 20-second single loop JamMan! The MPX G2 front panel buttons or the MPX R1 control: Tap = Record Loop A/B = Layer Delay = Clear Loop The MPX R1 Toe Switch lets the pedal control volume (Toe Switch off) or wah (Toe Switch on).
  • Page 161 MPX G2 User Guide Lexicon 167 Blow By… Play any riff from this album. A simple, moderately clean sound. The MPX R1 Toe Switch activates pedal wah. 168 Old Eddie Classic VH tone from the first couple of albums — with the reverb hard-panned to the right.
  • Page 162 Push it hard to put an edge on your bop — Imagine an organ trio in a smoke-filled club. 194 Acoustic A preamp sound which can make your clean electric guitar sound almost acoustic. Works especially well on the neck pickup. MPX G2 Program Descriptions Amp Collection (Stand Alone) 9-23...
  • Page 163 Each program can be used stand alone for tracking — just plug in your guitar and record direct through the MPX G2 built-in preamp. (You can easily change the preamp by using Copy Effect in Edit mode to copy the preamp from any other program.
  • Page 164 60’s and 70’s. A/B changes the tape delay from 15ips to 7.5ips. 208 PCM 60 Room This program recreates the settings of a Lexicon PCM 60, tweaked for guitar. 209 Gated Verb More of an effect than a natural space, gated reverb can be quite useful to thicken up rhythmic parts without spilling over into the rest of the mix.
  • Page 165 Each program can be used stand alone for tracking — just plug (Stand Alone) in your guitar and record direct through the MPX G2 built-in preamp. (You can easily change the preamp by using the Copy Effect function in Edit mode to copy the preamp from any other program.
  • Page 166 Country chops — a clean preamp with some slap back echo and a little ambience. A/B changes from one slap back time delay time to another. The MPX R1 pedal controls volume. The Toe Switch turns the pedal on and off. MPX G2 Program Descriptions Styles (Stand Alone)
  • Page 167 The MPX R1 Toe Switch gives you pedal control of volume or of volume with a sweep filter scale. Live Rigs Programs 230-232 are rigs in which the MPX G2 A/B button changes the program from a lead sound with various effects to a rhythm sound with different effects. (Stand Alone) 230 Modern A/B Super saturated high-gain lead sound with Tap tempo delay control.
  • Page 168 243 BassPitchPdl A preamp with a pedal controlling the pitch up and octave. Press A/B to go up or down an octave. 244 BootsyBass Bass preamp with a Bootsy-style auto wah. MPX G2 Program Descriptions Bass Effects (Stand Alone) 9-29...
  • Page 169 Loads with a creamy overdriven preamp and a Cordovox effect with reverb. The MPX R1 Toe Switch turns the Cordovox effect on and off, the pedal controls the Cordovox speed. Programs 247 and 248 are set up to have the MPX G2 front panel buttons or the MPX R1 control: 247 Jam 2 Pitch+ Loads with high-gain preamp, Pitch and Ambience.

  • Page 170: Troubleshooting

    This chapter is intended primarily to help you recognize some common error states which can be corrected from the MPX G2 front panel, or by simple means such as cable replacement. Any error states which are not covered here should be referred to your local dealer or Lexicon Customer Service.

  • Page 171: Power On Behavior

    Check the Automation setting (and the Xmit Device ID selection) in the System mode MIDI menu. The MPX G2 performs a series of self tests each time it is powered on, then Power On Behavior displays the MPX G2 copyright notice. This should be followed by the display and loading of the last loaded effect.

  • Page 172: Specifications

    -97dB (unweighted) typical instrument to main outputs in Bypass Sample rate: 44.1kHz Return Mix: When the Return Mix option is selected, MPX G2 will mix the analog Aux inputs with the post converter output signal from the DSP. Throughput delay without send/return loop: Input to Main Output <3ms, nominal...
  • Page 173 MPX G2 User Guide Internal Audio Data Paths Conversion: DSP: Control Interface MIDI: Footswitch: Foot pedal: Remote Power In: General Dimensions: Weight: Power Requirements: Environment: Electrical Approvals Safety Compliance: EMC Compliance: Specifications subject to change without notice. 11-2 24-bit A/D, 24-bit D/A...

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