XtrudeR
experimental synth
XX-Drum-Modules
4 drums modules
XXdr 8008
TR-808 emulation
YAVA3
for experimantation
yoink
Best used for live performance
Yonu60
Roland Juno emulation
Yumaha CS-35
Yamaha CS-30L & CS-15
Zap
audio-controlled synth
ZetH
versatile synthesizer
ZitH
Creative soundmonster
Zonax WSS1 Pro
sampler and synthesizer