MU90
| Manufacturer | Yamaha |
| Function | Synthesizer |
| Produced | 1996 |
| Country | Japan |
| Form Factor | 19" Rackmount |
| Signal Path | Digital Hardware (including Analog Connections) |
| Dimensions | 220 mm × 210 mm × 44 mm |
| Weight | 1.3 kg |
| Notes | Polyphony: 64 notes Multitimbral: 32 parts Preset Performances: 100 User Performances: 100 ROM: 779 tones, 30 drumkits Effects: five multi-effect sections: reverb (12 types), chorus (14 types), variation (62 types), insertion (43 types), and EQ (4 types) Screen: Custom backlit LCD |