YOB-431M/432M Oboes
| YOB-431M | YOB-432M | ||
|---|---|---|---|
| System | Simplified Conservatoire (semi-automatic octave system) | Simplified Conservatoire (full-automatic octave system) | |
| Key systems | Identical to models without the 'M' suffix | Identical to models without the 'M' suffix | |
| Mechanical features | 3rd octave key, Left-hand F key, Fork F resonance key | 3rd octave key, Left-hand F key, Fork F resonance key | |
| Trill keys | C#-D#, F#-G#, Ab-Bb, A#-B, B-C#, left C-D, right C-D | C#-D#, F#-G#, Ab-Bb, A#-B, B-C#, left C-D, right C-D | |
| Pads | 8 cork, 15 felt pads | 8 cork, 15 felt pads | |
| Body material | Grenadilla Insert injected ABS resin (upper joint) | GrenadillaInsert injected ABS resin (upper joint) | |
| Key materials | Silver-plated nickel silver keys | Silver-plated nickel silver keys | |
| Toneholes | ABS resin (except metal octave vents, upper joint only) | ABS resin (except metal octave vents, upper joint only) | |
