Simple solution for guitarists who want to use two speaker cabinets on an amp with only one speaker output.
The Radial JR-5 allows foot control of the Radial JX44 / JX44 V2 or JX42 / JX42 V2.
The Radial JR1-M footswitch can be hooked up to various bits of Radial kit for increased control. It's unlatched and will only change status when engaged.
Radial's JR1-L is a latched or locking footswitch. You have to press the switch to turn the ignition on and also press it again to turn the ignition off.