Yamaha oboes achieve a clear sound quality and superb intonation by dramatically improving the precision and stability of the bore. Also to cope with various durability issues inherent in wooden wind instruments, Duet+ models employ innovative techniques to form a protective layer next to the air column. The combination of precious wood and state-of -the-art resin is not simply a "Duet" of tradition and technology - it's a "Plus" advantage indeed!

Insert Molding	Using patented technology, the injection-molded inner bore is designed to resist cracking while also stabilizing the bore which adds consistency and durability. The upper joint body is drilled out slightly larger around the bore and tone-holes. Thermoplastic ABS resin is injected into the cavity, instantly forming the inner shape of an oboe. It is designed to preserve as much as 90% of the wooden portion, while its natural appearance is hardly distinguishable from conventional all-wooden models.
Toneholes	Upper-joint tone-holes (except metal octave vents) are molded simultaneously with the resin bore.
Joint Tenon	The upper joint tenon is also formed as an extension to the resin bore. This ensures smooth connection between the joints even under moist conditions.
Marking	The gold-colored trademark logo is stamped on the back of the upper joint.

 

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