I am trying to get(near)the same sound,only much louder from my keyboards when playing at live gigs as I do at home when I plug them into my old Yamaha P300 piano through the line in input.The sounds from it is perfect.
I have tried different setups A Peavey KB300,2 RCF Art300a powered speakers + mackie mixer,A Ampeg bass combo but none of them comes near the sound of the small built in speakers in the Yamaha especially for piano sounds.
I am using a Ketron Aydya and a software Pianoteq for piano sounds.
Does anyone have any different suggestions,or maybe use some effect pedals. Thank you