To begin using Lex with an external MIDI device, connect the MIDI out jack from a pedal, controller, or computer interface to the EXP/MIDI jack on Lex. The following devices can be used to send MIDI messages to Lex:
Set the EXP/MIDI jack to MIDI Mode
Once you have connected Lex to a MIDI source, you must set the EXP/MIDI jack to MIDI mode.
Set the MIDI Channel
Next, you will need to select a MIDI channel to communicate with Lex. Lex is set to MIDI channel 1 by default.
Set MIDI Output Mode
The MIDI Output mode must be set to determine what kind of MIDI data is sent out by Lex. ***NOTE: If you are only sending MIDI data to Lex or if you are using the Strymon MIDI EXP cable, the MIDI Output mode must be set to OFF.***
Once you have configured Lex to communicate via MIDI, you can set the pedal to synchronize to incoming MIDI clock.
When Lex is synced to MIDI clock, the echo repeats are synced to the incoming MIDI clock messages.
To set whether Lex will respond to incoming MIDI clock:
The MIDI Clock setting is saved per Favorite setting or MIDI preset.
***NOTE: Saved Favorite or MIDI presets on Lex will store the settings of all the knobs and toggle switches on the pedal as well as the bypass state of the pedal.***
With the EXP/MIDI jack set to MIDI mode, the currently loaded settings can be saved to any of Lex’s 300 preset locations at any time.
To enter Save mode, press and hold BOTH footswitches. Both LEDs will blink GREEN to indicate that Lex is waiting to receive a MIDI Program Change message.
Lex contains 300 preset locations, numbered sequentially from 0-299. Because MIDI Program Change messages have a maximum number of 128 (0-127) the presets are grouped into three MIDI patch banks:
NOTE: Some MIDI applications and controllers start with MIDI Program Change #1 instead of 0. In these setups, increment the MIDI Program Change numbers above by one.
Lex always powers up in MIDI Patch Bank 0, so if you plan to stay within the first 127 presets, simply send a standard MIDI Program Change message to load a preset.
If you will be using MIDI Banks 1 and/or 2, it is advisable to send a standard MIDI Bank Change message (MIDI CC# 0 with a value equal to the MIDI Bank#) before each MIDI Program Change.
Selecting bank 0, patch 127 will put Lex into Manual mode. In this mode, the pedal will be set to the current knob and switch settings. No preset data can be stored at this preset location.