True to the Music
Radial Engineering Ltd.
JX42 V2™ Owner’s Manual
8
THE MIDI INPUT
The JX42 features built-in MIDI compatibility for use with MIDI footswitches and controllers. This allows you to remotely
control the instrument inputs and the amplifier outputs from a single device. To use these devices with the JX42, connect
their MIDI output to the rear panel MIDI IN of the JX42 using a standard 5-pin MIDI cable.
1 2 3 4 5 6 7 8
The default MIDI dip
switch settings
The MIDI input and dip switches
MIDI controller
MIDI cable
MIDI CONFIGURATION
The JX44’s MIDI channel selection and configuration is set via the 8 DIP switches on the rear panel. It can be set up to
respond to an individual MIDI channel (1-16), or put into OMNI mode to respond to messages sent on all MIDI channels
simultaneously. The DIP switches also determine whether the JX42 responds to MIDI Program Change or Control
Change messages. DIP switch details can be found on the following pages.
THE DEFAULT FACTORY DIP SWITCH SETTINGS
The JX42 ships with Dip switches 1-4: DOWN, 5-7: UP, and 8: DOWN. This
configuration means the JX42 will respond to MIDI messages on all MIDI
Channels, and the JX42 will respond to Control Change messages only.
The Radial JR-2 Footswitch
USING THE JR-2 REMOTE FOR AMPS
The JX42 is also compatible with the optional Radial JR-2 remote footswitch, which can be used to control the
amplifier outputs from up to 300 feet away.
Connect the JR-2 remote to the rear panel of the JX42 using a balanced 1/4” TRS cable. Just like the JR-5, the JR-2
does not require a local power supply as it receives power directly from the JX42.
The JR-2 features an A/B toggle footswitch to switch between the active amp
outputs. Use the A/B footswitch the same way you would the front panel Amp
Select Switch, pressing it once to switch from one amplifier to another, or to
select between your primary and backup amp modelers. When the JR-2 remote
is connected to the JX42, the front panel Amp Select Switch will be disabled,
making the footswitch the only way to toggle between the two amplifier outputs.
The MUTE switch on the JR-2 allows you to access a feature that is not present
on the JX42 itself, which is the ability to mute both amp outputs. When this
footswitch is pressed on the JR-2, the red MUTE LED indicator will illuminate,
and the LED behind the Amp Select Switch on the JX42 will turn off to indicate
that the outputs are muted.
Note: When the JR-2 remote footswitch is connected to the JX42, it will disable the front panel Amp Select
Switch as well as the ability to switch or mute amplifiers via MIDI commands. This is to prevent the LED
indicators on the JR-2 from falsely indicating the status of the amp outputs.
