MB-33 MK I
| Brand | FAT |
| Manufacturer | Music And More |
| Function | Synthesizer (Analog Monophonic Rack-mount MIDI synthesizer) |
| Produced | 1994- |
| Country | Germany |
| Model ID | FB383 Freebass |
| Form Factor | 19" Rackmount |
| Signal Path | Analog Hardware |
| Power | 12V AC |
| Channels | 1 Voice (Analog Monophonic) |
| Connections |
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| Notes | MIDI-controlled monophonic analog synthesizer. |