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 Arius YDP S54 - Rimmers Music - YouTube
Yamaha YDP S54 Arius digital piano — Hilton Piano Center LLC