HEADRUSH FRFR-108 Guide D'utilisation page 4

Example B: Two FRFR-108s (Stereo)
Connect the Right and Left (Mono) outputs of your HeadRush Pedalboard to the inputs
of your FRFR-108s.
(from Left (Mono)
(from Right
channel)
channel)
Guitar
Surge Protector
4