English 41, Listening with headphones, Various sound control Ⅵ b. (bass) boost button – Yamaha GX-900 User Manual
Page 49: Bass and treble controls, Ymersion button, Bass boost, Bass treble ymersion b. boost, Ymersion, Press this button so that “bass boost, Press this button so that “ymersion
English 41, Listening with headphones, Various sound control Ⅵ b. (bass) boost button | Bass and treble controls, Ymersion button, Bass boost, Bass treble ymersion b. boost, Ymersion, Press this button so that “bass boost, Press this button so that “ymersion | Yamaha GX-900 User Manual | Page 49 / 56