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
Digital Piano Yamaha YDP S54 Full Review. Is it a good choice?
YAMAHA YDP-S54 數碼鋼琴– 飛騰音樂中心Flight Music | 鋼琴班Roland 數碼鋼琴電子鼓
YAMAHA YDP S54 數碼鋼琴|一年保養- Rock Music Factory
Amazon.com: Yamaha YDPS54B Arius Series Slim Digital Console Piano, Black : Musical Instruments