Olimpus Music LTD - Succeeding the popular YDP-S52, the Yamaha YDP-S54 is from Yamaha's Arius line of pianos—ones that entry level digital piano players can enjoy, but robust enough that one with
Yamaha YDP-S54 review: One of the Best Yamaha Digital Pianos?
Yamaha ARIUS YDP-S54 Digital Piano Overview - YouTube
Yamaha Arius YDP-S55 Digital Piano - White | KraftMusic.com