Does the rear's output work when connected via Bluetooth or is the output only for connected sources.
I use bluetooth for backing tracks from my laptop and take an output from the rear of S1 pro to my L1 mark 1 at larger venues. This enables easier control of the volume of backing tracks as i haven't yet purchased a Tonematch
ok, so the music which is transmitted via Bluetooth carries over on the output and places through the L1 (or other connected source).
Yes it plays through both systems