Hi Anon,
the only way to bring an original PSR-4600 sound into the SX900 would be to
sample it directly from a 4600 and use these Samples then to create a new Custom Voice for the SX900 using the Expansion Manager (YEM). To do this, however, you need certain expertise.
BUT: Have you tried all of the SX900 Vibraphone/Vibes Voices yet? I searched the SX900 Voice List (included in the SX900 DATA LIST) for those Voices and found the following:
PANEL Voice folder > "Perc.&Drums"
•
Vibraphone •
Vibes&Flutes •
JazzVibes •
Vibes&JazzGuitarLEGACY Voice folder > "Percussion"
•
VibraphoneNote: To find and call up the “LEGACY” Voice folder, touch the "
Up" arrow at the bottom right of the Voice Selection display (when Preset is selected), and then select
page 2. This folder contains previous Yamaha keyboards’ Voices (such as the PSR-S series) for data compatibility with other models.
You can also try the following
GM&XG Voices:
•
HardVibes •
VibesKSP •
VibraphoneTo play these Voices, click the following link and download the file "Vibraphone GM&XG.zip" from my Dropbox. Unzip the file, then copy the folder "Vibraphone GM&XG" on a USB stick and connect it to the SX900.
>>>
https://www.dropbox.com/s/kfielnx9gsex5rf/Vibraphone%20GM%26XG.zip?dl=0Then use the Voice Selection display to call up the Voices directly from the USB stick. Note: You can only use these .vce Voices in
Keyboard Parts (Right 1 - 3, Left).
Hope this helps!
Best regards,
Chris