Yamaha MX88 Music Synthesizer – Larry's Music & Sound
Yamaha MX88 88 Key Weighted Action Synthesizer Yamaha Portable Keyboards PIANO TOUCHThe MX88 features a Graded Hammer Standard (GHS) weighted action. GHS weighted action has a heavier response in the low keys
Yamaha MX88 Music Synthesizer - Black STAGE ESSENTIALS BUNDLE | KraftMusic.com
Yamaha MX88 88-key Weighted Action Music Synthesizer | Sweetwater