Community : Document List - M5 / M9 / M13

Stereo/Mono FX Routing table

support@line6.com — Wed, 17 Oct 2012 16:04:42 GMT

Mono/Stereo Table for the M-Series. Special Thanks to JimRyanLine6 who originally researched and created this list.

True Stereo - Left input goes to the Left output, Right goes to the Right output, effect is added to each channel separately.

Mono - Left input and Right input are summed to mono, effect is added to the mono signal which goes to both the Left and Right outputs.

Stereo Thru/Mono Effect - Left input goes to the Left output, Right input goes to the Right output, Left input and Right input are summed to mono, effect is added to the mono signal which goes to both the Left and Right outputs.

Stereo Thru/Stereo Effect - Left input goes to the Left output, Right input goes to the Right output, Left input is processed to create a stereo effect and mixed with the Left and Right outputs, Right input is processed to create a stereo effect and mixed with the Left and Right outputs.

The difference between the last two is a mono effect will sound like it is in the center of the stereo field, a stereo effect will lay across the stereo field.

Delay	Tube Echo	True Stereo
Delay	Tube Echo DryThru	True Stereo
Delay	Tape Echo	True Stereo
Delay	Tape Echo DryThru	True Stereo
Delay	Multi-Head	Stereo Thru/Mono Effect
Delay	Analog Echo	True Stereo
Delay	Analog w/Mod	True Stereo
Delay	Sweep Echo	True Stereo
Delay	Sweep Echo DryThru	True Stereo
Delay	Lo Res Delay	True Stereo
Delay	Digital Delay	True Stereo
Delay	Digital Delay w/ Mod	True Stereo
Delay	Stereo Delay Left	True Stereo
Delay	Ping Pong	Stereo Thru/Stereo Effect
Delay	Reverse	Stereo Thru/Mono Effect
Delay	Dynamic Delay	True Stereo
Delay	Auto Volume Echo	True Stereo
Delay	Echo Platter	True Stereo
Delay	Echo Platter DryThru	True Stereo
Modulation	Opto Tremolo	Stereo Thru/Mono Effect
Modulation	Bias Tremolo	Stereo Thru/Stereo Effect
Modulation	Pattern Tremolo	True Stereo
Modulation	Phaser	Stereo Thru/Stereo Effect
Modulation	Dual Phaser	Stereo Thru/Stereo Effect
Modulation	Panned Phaser	Stereo Thru/Stereo Effect
Modulation	Barberpole Phaser	True Stereo
Modulation	Script Phase	True Stereo
Modulation	U-Vibe	Stereo Thru/Mono Effect
Modulation	Analog Flanger	Stereo Thru/Stereo Effect
Modulation	Jet Flanger	Stereo Thru/Stereo Effect
Modulation	AC Flanger	Stereo Thru/Stereo Effect
Modulation	80A Flanger	Mono
Modulation	Analog Chorus	Stereo Thru/Stereo Effect
Modulation	Tri Chorus	Stereo Thru/Stereo Effect
Modulation	Pitch Vibrato	Stereo Thru/Mono Effect
Modulation	Panner	Stereo Thru/Stereo Effect
Modulation	Rotary Drum	Stereo Thru/Stereo Effect
Modulation	Rotary Drm/Hrn	Stereo Thru/Stereo Effect
Modulation	Dimension	Stereo Thru/Stereo Effect
Modulation	Ring Modulator	Stereo Thru/Stereo Effect
Modulation	Frequency Shifter	True Stereo
Distortion	Tube Drive	Mono
Distortion	Screamer	Mono
Distortion	Overdrive	Mono
Distortion	Classic Dist	Mono
Distortion	Heavy Dist	Mono
Distortion	Colordrive	Mono
Distortion	Buzz Saw	Mono
Distortion	Facial Fuzz	Mono
Distortion	Jumbo Fuzz	Mono
Distortion	Fuzz Pi	Mono
Distortion	Jet Fuzz	Mono
Distortion	Line 6 Drive	Mono
Distortion	Line 6 Distortion	Mono
Distortion	Sub Octave Fuzz	Mono
Distortion	Bass Octaver	Stereo Thru/Mono Effect
Distortion	Octave Fuzz	Mono
Distortion	Boost Comp	Mono
Distortion	Volume Pedal	True Stereo
Distortion	Red Comp	Mono
Distortion	Blue Comp	Mono
Distortion	Blue Comp Treb	Mono
Distortion	Vetta Comp	Mono
Distortion	Vetta Juice	Mono
Distortion	Tube Comp	Mono
Distortion	Noise Gate	Mono
Distortion	Graphic EQ	True Stereo
Distortion	Studio EQ	True Stereo
Distortion	Parametric EQ	True Stereo
Distortion	4 Band Shift EQ	True Stereo
Distortion	Mid Focus EQ	True Stereo
Filter	Tron Down	True Stereo
Filter	Tron Up	True Stereo
Filter	Seeker	True Stereo
Filter	Obi-Wah	True Stereo
Filter	Voice Box	Stereo Thru/Mono Effect
Filter	V Tron	Stereo Thru/Mono Effect
Filter	Throbber	True Stereo
Filter	Spin Cycle	True Stereo
Filter	Comet Trails	True Stereo
Filter	Slow Filter	True Stereo
Filter	Octisynth	Stereo Thru/Mono Effect
Filter	Synth O Matic	Stereo Thru/Mono Effect
Filter	Attack Synth	Stereo Thru/Mono Effect
Filter	Synth String	Stereo Thru/Mono Effect
Filter	Growler	Stereo Thru/Mono Effect
Filter	Q Filter	True Stereo
Filter	Vetta Wah	True Stereo
Filter	Fassel	True Stereo
Filter	Weeper	True Stereo
Filter	Chrome	True Stereo
Filter	Chrome Custom	True Stereo
Filter	Throaty	True Stereo
Filter	Conductor	True Stereo
Filter	Colorful	True Stereo
Filter	Smart Harmony	Stereo Thru/Mono Effect
Filter	Pitch Glide	Stereo Thru/Mono Effect
Reverb	‘63 Spring	Stereo Thru/Stereo Effect
Reverb	Spring	Stereo Thru/Stereo Effect
Reverb	Plate	Stereo Thru/Stereo Effect
Reverb	Room	Stereo Thru/Stereo Effect
Reverb	Chamber	Stereo Thru/Stereo Effect
Reverb	Hall	Stereo Thru/Stereo Effect
Reverb	Ducking	Stereo Thru/Stereo Effect
Reverb	Octo	Stereo Thru/Stereo Effect
Reverb	Cave	Stereo Thru/Stereo Effect
Reverb	Tile	Stereo Thru/Stereo Effect
Reverb	Echo	Stereo Thru/Stereo Effect
Reverb	Particle	Stereo Thru/Stereo Effect

Video Tutorial: Getting Started With the M5 Stompbox Modeler

support@line6.com — Fri, 15 Apr 2011 21:22:51 GMT

[Video Tutorial] M9 Stompbox Modeler Basics Tutorial

support@line6.com — Mon, 18 Oct 2010 23:44:23 GMT

Basic tutorial on connecting your M9 Stompbox modeler to an amp.

M5/M9/M13 Scene Backup and Loading

support@line6.com — Mon, 08 Feb 2010 22:49:00 GMT

M5/M9/M13 BACKUP INSTRUCTIONS

*** This procedure is also explained in the M9 Advanced User's Guide and M13 Advanced User's Guide

REQUIRED:

A MIDI sequencer app such as Cubase or a sysex app -- if you don't have a sysex app installed, do a Google search for MIDI Ox (Windows) or Sysex Librarian (Mac) then download one or the other and install it.

And ONE of the following:

A MIDI interface that connects to your computer via USB (download the current Driver for it if you don't have it installed) & 2 MIDI cables

A MIDI - USB interface such as the M-Audio Uno that comes with attached MIDI cables. You may need to download & install the latest driver from the manufacturer for this device.

When your MIDI interface, Driver and sysex app are ready to go, follow PROCEDURE instructions below.

PC USERS, Windows XP & Vista:

Saving Scenes & Folders:

1. Run MIDI OX. You can do so from Start > Program Files > MIDI OX.

2. Set "Pass Sysex" & "Start Display" to On by clicking on the the 'REC' & 'SYX' boxes at the bottom right of the main window so it is highlighted blue.
3. Now go to View > Sysex. A Sysex View and Scratchpad window will open.
4. Go to the Sysex menu & select "Receive Manual Dump." When selected, you will see a window appear waiting on info from the M9/M13.
5. In Setup Menu of M9 (Press the 3A and TAP buttons at once, then press the MODEL SELECT knob 3 times until the display shows MIDI in the top left) or the M13 (hold the 'Looper Controls' button), select 'Dump All' to backup all your scenes, 'Dump Folder' to backup the current folder, or 'Dump Edit' to backup the one scene you have currently selected. Press the TAP button and the 'MODEL SELECT' knob at the same time on the M9 or just press the 'MODEL SELECT' knob on the M13 to begin the dump. Click 'Done' in MIDI OX when complete.
6. Under the 'Display Window' of MIDI OX, click 'Save As' and save it as a Sysex file type.

Loading Scenes & Folders:

1. Run MIDI OX

2. Go to View > Sysex. A Sysex View and Scratchpad window will open.

3. Under the 'Command Window' menu, select 'Load File' and select the Sysex scene or folder file that is saved on your computer. If you are attempting to load an individual scene, it will be recalled to your current scene location, so change to the scene location on the M9/M13 you would like to overwrite.
4. Again, go to the 'Command Window' menu & select 'Send/Rec Sysex.' The display on the M9 (FX Unit 4 on the M13) will flash 'Receiving MIDI - Standby.' Once complete, your scene(s)/folder are now loaded. You do not have to set anything on the M9/M13, it will simply load the individual scene to the current location or load all the scenes in one shot once it receives the file. If you are loading a folder, it will load to the same folder location that it originated from. So, if you saved Folder 3 from the M9/M13, it will load back into the Folder 3 location on the hardware regardless of which Folder you may be looking into.

**Note - Using 'Send Sysex' does not work. MIDI OX screen will read 'Sysex Receive' although it is sending to the M9/M13.

MAC USERS:

Saving Scenes & Folders:

1. Open Sysex Librarian.
2. You should already see your MIDI interface (or 'USB Uno MIDI Interface') listed in the dropdown menu at the top. If not you will need to download & install the latest drivers available from the manufacturer.
3. Click the 'Record Many' button. Use this even when backing up an individual scene. A window will appear showing it is awaiting info from the M9/M13.

4. On the M9/M13 select either 'Dump All' (all scenes), 'Dump Folder' (current folder), or 'Dump Edit' (current scene). Press the TAP button and the 'MODEL SELECT' knob at the same time on the M9 or just press the 'MODEL SELECT' knob on the M13 to begin the dump.
5. Once complete, you can rename 'untitiled.syx' in Sysex Librarian by clicking the name once it is highlighted.

Loading Scenes & Folders:

1. Select the Sysex file you wish to load.
2. Click 'Play'. You will see 'Receiving MIDI - Standby' in the display on the M9 (FX Unit 4 on the M13). Your scene(s)/folder is now loaded. Again, if you are loading an individual scene, it will load to the current location you are in, so select the scene you wish to overwrite BEFORE loading the backup file. If you are loading a folder, it will load to the same folder location that it originated from. So, if you saved Folder 3 from the M9/M13, it will load back into the Folder 3 location on the hardware regardless of which Folder you may be looking into.

M5 Backup Procedure:

With a MIDI interface and a sysex application, you can back up all your
M5 presets to your computer. This makes it easy to build a custom preset
library, or exchange presets with others. To backup your presets, or to
dump the current preset, follow these steps:

1. Turn bottom left PARAMETER KNOB to set your MIDI
Channel (Ch. 1-16 or Omni - the default is Ch. 1).

2. Turn the Model Select knob to select “DUMP ALL?” (to back
up all 24 presets) or “DUMP PRE?” (to back up your current
preset).

NOTE: There is an error in the M5 Pilot Guide.pdf regarding the following step in the SysEx dump procedures. Please refer to the information here for correct behavior:

3. With your computer set up to record sysex, press and hold ON/OFF while you press down on the MODEL SELECT knob. Repeat this to confirm or press TAP to exit out, if you choose.

4. The M5 will immediately transmit the sysex file to your computer, creating a backup of your Scenes that you can store and recall at any time. To load presets back into your M5, simply transmit the sysex file from your computer into the M5 via MIDI. This will immediately load the data into the M5’s memory.

M9 Stompbox Modeler FAQ

support@line6.com — Wed, 04 Nov 2009 00:53:50 GMT

Total Looper Recording Time: 30 seconds (60 seconds with half-speed enabled)

Ins and Outs: Stereo Input through two 1/4" mono inputs (L and R) and stereo output through two 1/4" mono outputs (L and R). All inputs and outputs are unbalanced instrument level. Additionally, two 1/4" jacks for 2 expression pedals

Expression Pedal: Use Line 6 EX-1 or an expression pedal with a passive 10K ohm mono linear taper pot, using a standard 1/4 inch mono instrument cable

Power Adapter: included Line 6 PX-2 only (Specs: 9V, 2000mA, center tip positive, 2.5mm diameter). No battery power option available

Product Dimensions: 10.5" (L) x 7" (W) x 3" (H)

Weight: 2.3 lbs

Q: How many total effects are there in the M9?

A: With the latest 2.01 Firmware update, there are 109 total effects available on the M9.

Q: How many of each type of effect is there on the M9?

Distortions/Comps/EQ/Volume: 30
Modulations: 22
Filter/Pitch: 26
Delays: 19
Reverbs: 12

Q: How do I register my M9?

A: You can register any Line 6 product to your account here: Registration. For more detailed registration help, please see the

Registration FAQ.

Q: What is the warranty on the M9?
A: Twelve months from the date of purchase. Authorized Line 6 Service Centers will need you to provide a copy of the purchase receipt to validate date for warranty processing. Please be sure to have those materials ready, should you need to get your unit serviced under warranty.

Troubleshooting & Service

Q: How do I perform a Factory Reset on the M9?

A: You can perform a factory reset by entering the Setup screen (press both B1 and B2 at once) and navigating to the Screen with the MIDI, GATE, Display header and turning the Model Select knob until the corresponding parameter displays ‘RST FACT?’ You can then press down on the TAP footswitch then the Model Select Knob together twice to reset the unit. You can also re-install the flash memory to return the M9 to factory settings.

Q: What is a "Scene"?

A: A "scene" is a pedal board arrangement on your Line 6 M9 Stompbox Modeler with 6 available effects, up to 3 at once.

Q: How many scenes are there and how do I access them?

A: With the 2.01 update, you can create and save up to 6 different scenes in one Scene Folder. With 4 Scene Folders, you get 24 total scenes on the M9! Press 3A and the TAP button at the ssame time to access the scenes and turn the MODEL SELECT knob to access the additional folders.

Q: Can I backup my scenes to my computer?

A: You can backup your scenes via MIDI. Check out the M9/M13 Scene Backup document.

Q: Which expression pedals can I use with the M9?

A: We recommend using the Line 6 EX-1 expression pedal. You can also use any other expression pedal containing a 10k Ohm Potentiometer. Expression pedals allow you to change stompbox controls using your feet so you can adjust the sound while you play. On the fly, you can modify the delay time and feedback, speed of your tremolo, or sweep the pitch on the Pitch Bender effect.

Connect an expression pedal to your M5 Stompbox modeler. Start with the pedal in the toe position. Once you have your effect parameters settings as desired rock the expression pedal to its heel position. Now set your parameters to your desired settings. As you move your expression pedal from heel to toe, you’ll see all of the adjusted parameters move between these settings.

All parameters affected by an expression pedal will show a pixel notch at the top indicating a parameter’s setting for the toe position of the pedal. You’ll also see a notch at the bottom that indicates a parameter’s settingwith the expression pedal in the heel position.

Additionally, if you don't want a parameter adjusted by the expression pedal, set the parameter's knob to where you want it with the heel down, then do the same with the heel up.

M5/M9 Firmware Update Instructions

support@line6.com — Mon, 26 Oct 2009 18:34:07 GMT

M9/M5 FIRMWARE UPDATE INSTRUCTIONS

NEEDED:

A MIDI interface that connects to your computer via USB (download the current Driver for it if you don't have it installed)
2 MIDI cables (or a MIDI interface such as the M-Audio Uno that comes with attached MIDI cables)

NOTE: Line 6 recommends a name brand USB to MIDI interface produced by an audio company that supports/updates their drivers. Good choices include: M-Audio, Edirol, E-Mu and MOTU. These interfaces have proven to be more robust and reliable when it comes to large MIDI transfers such as the M9 and M13 update.

For further infomation on MIDI connectivity and interfaces, please go over the following MIDI Document
Line 6 Monkey 1.35 or higher installed. Download and install the Line 6 Monkey software here

Procedure

Connect your MIDI interface to your computer via USB cable.
Connect the M9/M5 MIDI Out to your MIDI interface In, and connect the M9/M5 MIDI In to your MIDI interface Out.
Launch the Line 6 Monkey 1.35 (or higher) with the M9/M5 connected via the MIDI interface and powered on.
Select the Flash Memory line item and click the Update Selection button to install the flash memory update into the M9/M5.
The device will receive the firmware data and the unit will be updated to the latest Firmware. It sometimes takes 30 seconds to 1 minute to appear like the unit is receiving the update and takes several minutes to complete. The M9/M5 will re-initialize when the update is complete.

M13 Firmware Update Instructions

support@line6.com — Tue, 07 Apr 2009 18:26:36 GMT

M13 FIRMWARE UPDATE INSTRUCTIONS

NEEDED:

A MIDI interface that connects to your computer via USB (download the current Driver for it if you don't have it installed)
2 MIDI cables (or a MIDI interface such as the M-Audio Uno that comes with attached MIDI cables

Note: Line 6 recommends a name brand USB to MIDI interface produced by an audio company that supports/updates their drivers. Good choices include: M-Audio, Edirol, E-Mu and MOTU. These interfaces have proven to be more robust and reliable when it comes to large MIDI transfers such as the M9 and M13 update..

For further information on MIDI connectivity and interfaces, please go over the followingMIDI Document.
A MIDI sequencer app such as Cubase or a sysex app -- if you don't have a sysex app installed, do a Google search for MIDI Ox (Windows) or Sysex Librarian (Mac) then download one or the other and install it. When your MIDI interface, Driver and sysex app are ready to go, follow PROCEDURE instructions below.
If you experieince trouble with this update, please make sure your cable connections are correct and to try uninsalling the drivers for the MIDI interface, then, downloading and re-installing the drivers from the manufacturer's website. Then, try updating once again.

Additional Instructions for MAC Users Using Sysex Librarian:

Some users found that changing the "Pause Between Played Messages" in the 'General' tab of Preferences from the default 60ms to 100ms allowed them to update.

Additional Instructions for WINDOWS Users Using MIDI Ox:

1. Make sure the Driver is installed and working.

2. Run the MIDI Ox application.

3. Go to Option, then MIDI Devices; select USB Audio Device for both MIDI Inputs and MIDI Outputs; uncheck Automatically Attach Inputs To Outputs During Selection; click OK to accept it.

4. Go to View, then Port Routing; delete the connection between Input Ports and Output ports if they are connected; make sure only MIDI Ox Event Port connects to Output Ports.

5. Go to View, then Sysex; in Sysex View and Scratchpad, go to Sysex, then Configure, make sure to check Delay After F7 and set the Delay (Milliseconds Between Buffers) to 60ms; click OK to accept.

Now you're ready to go. One more thing: If the update fails when using a USB hub, please try it without the hub.

PROCEDURE:

***WARNING: Updating your firmware will erase user created scenes. Please back up your scenes as described in the M13 Scene Backup document and the M13 Advanced User's Guide.***

1. Connect your MIDI interface to your computer via USB cable.

2. Connect the M13 MIDI Out to your MIDI interface In, and connect the M13 MIDI In to your MIDI interface Out.

3. Power on the M13 while pressing and holding down the 'Model Select' knob in FX UNIT 1 to put the M13 into FLASH UPDATE MODE.

4. Make sure your computer is set up to 'see' the MIDI interface (on Mac, you must configure Audio MIDI Setup -- on Win, see ADDITIONAL INSTRUCTIONS For Windows Users above).

5. Download the latest M13 Firmware from the Line 6 website (log in with your Line 6 User Name).

6. Launch your sysex app and select your MIDI interface Out port (for Sysex Librarian, use the top dropdown menu -- for MIDI Ox, select Options/MIDI Devices).

7. Load the M13 sysex file (in Sysex Librarian, select 'Add to Library' from the File menu; In MIDI Ox, select Actions/Send>'SysEx File...' and the 'Sysex View and Scratchpad will pop up.

8. Press Play (in Sysex Librarian). If using MIDI-OX, select 'Send Sysex File' from the 'File' menu of the 'Sysex View and Scratchpad Window'. A file browser will open for you to navigate to the M13 sysex file you downloaded from the Line 6 website. Select the M13 sysex file and click 'Open.'

9. The M13 will receive the sysex data and the unit will be updated to the latest Firmware. It sometimes takes 30 seconds to 1 minute to appear like the unit is receiving the update and takes about 8-10 minutes to complete. The M13 will re-initialize when the update is complete and the screens will light up with the new factory presets.

M13 Stompbox Modeler FAQ

support@line6.com — Wed, 26 Mar 2008 23:28:07 GMT

Total Looper Recording Time: 30 seconds (60 seconds with half-speed enabled)

Ins and Outs: Stereo Input through two 1/4" mono inputs (L and R), stereo effects loop (Send and Return each has stereo L and R 1/4" jacks), and stereo output through two 1/4" mono outputs (L and R). All inputs and outputs are unbalanced instrument level. Additionally, two 1/4" jacks for 2 expression pedals

Expression Pedal: Use Line 6 EX-1 or an expression pedal with a passive 10K ohm mono linear taper pot, using a standard 1/4 inch mono instrument cable

Power Adapter: Included Line 6 PX-2 only (Specs: 9V, 2000mA, 2.5mm barrel diameter). No battery power option available

Product Dimensions: 15.5" (L) x 12" (W) x 3.5" (H)

Weight: 10.2 lbs

Q: How many total effects are there in the M13?

A: With the latest 2.01 Firmware update, there are 109 total effects available on the M13.

Q: How many of each type of effect is there on the M13?

Distortions/Comps/EQ/Volume: 30
Modulations: 22
Filter/Pitch: 26
Delays: 19
Reverbs: 12

Registration & Warranty

Q: How do I register my M13?

A: You can register any Line 6 product to your account here: Registration. For more detailed registration help, please see the Product Registration F.A.Q.

Q: What is the warranty on the M13? A: Twelve months from the date of purchase. Authorized Line 6 Service Centers, will need you to provide a copy of the purchase receipt to validate date for warranty processing. Please be sure to have those materials ready, should you need to get your unit serviced under warranty.

Troubleshooting & Service

Q: How do I perform a Factory Reset on the M13?

A: You can perform a factory reset by entering the Setup screen and turning the Model Select knob on FX UNIT 4 until the corresponding parameter displays ‘RST FACT?’ You can then press down on the Model Select Knob twice to reset the unit. You can also re-install the flash memory to return the M13 to factory settings.

Q: Does Line 6 M13 Stompbox Modeler include guitar amp or cab modeling?

A: Nope. Just stompboxes.

Q: Will the looper still work while I'm changing sounds and scenes?

A: Absolutely. Once you have captured your looped creation, leave it repeating and go back to using any of the effects.

Q: Where's the tuner?

A: Press and hold down the TAP TEMPO button to activate the tuner. When activated, the tuner shows up in the LCD. By default, once the tuner is activated all signals are muted.

Q: What is a "Scene"?

A: A "scene" is a pedal board arrangement on your Line 6 M13 Stompbox Modeler with 12 available effects, up to 4 at once.

Q: How many scenes are there and how do I access them?

A: With the 2.01 update, you can create and save up to 12 different scenes in one Scene Folder. With 4 Scene Folders, you get 48 total scenes on the M13! Press the scenes button to access the scenes and turn the MODEL SELECT knob on FX Unit 1 to access the additional folders.

Q: Can I backup my scenes to my computer?

A: You can backup your scenes via MIDI. Check out the M13 Scene Backup document.

Q: Where can I get the factory scenes for my M13?

A: You can regain the factory scenes on the M13 following the reset procedure described above, or you can download the individual scenes from the Institute of Noise website.

Q: Which expression pedals can I use with the M13?

A: We recommend using the Line 6 EX-1 or the Mission Engineering EP1-L6 expression pedals. You can also use any other expression pedal containing a 10k Ohm Potentiometer. Expression pedals allow you to change stompbox controls using your feet so you can adjust the sound while you play. On the fly, you can modify the length of your delay time, dial up the reverb mix, or change the depth of your tremolo.

Q: One of my LCD screen's color appears to be different than the other LCD's that have the same model family selected. Can I adjust the color to match the other displays (i.e. I have 4 cascading Delay models and screen #2 appears to be not quite as "green" as the other 3)?

A: Yes. Power off the unit. Hold down the "Model Select" knob of LCD screen #3. Power on the unit. You can now adjust the relative color of each LCD display screen relative to the other ones.