Yamaha YDP-144 vs Yamaha YDP-164 [After Thorough Testing]
Amazon.com: Customer reviews: YAMAHA Arius YDP-164 Console Digital Piano Bundle with Furniture Bench, Headphones, Instructional Book, Austin Bazaar Instructional DVD, and Polishing Cloth - Black
Yamaha YDP-144, YDP-164, YDP-S54 - REVIEW | Digital Pianos