I can't hear the Sampler sound in rekordbox (Performance mode). Why not?

The output level of the Sampler sound in rekordbox (Performance mode) might be weak.
Turn on Control mode on the deck.
To turn on Control mode, see [Using DJ software] in the Operating Instructions.

You can read the Operating Instructions [here].

Select [OFF] for the AUX (OFF, LINE, PORTABLE) switch, then set the TRIM knob in the AUX section to 12 o'clock to see if you can hear the Sampler sound.