@Boban
Evo bas sam pitao Cesara na youtube kako je spojio pa odgovara:
Hello Zukae, yes, from the mic to the Boss VE-20 and from VE-20 to the BK-5 external Input. I fall in love with this Backing Keyboard

Regards from Vina del Mar, Chile.
CESARGUZMANCHILE prije 32 minute
Znači: " mikrofon u Boss VE-20 pa onda u BK-5"