Yamaha的雙簧管藉由大幅度改良管壁的精準性與穩定性，成功達到清晰的音質及絕佳的音調，除此之外，為了處理木製木管樂器存在的各式各樣品質問題，Duet+的型號使用創新的技術在空氣柱旁形成保護層，珍貴的木材與最新技術合成樹脂的結合，不僅是傳統與科技的雙重奏，更是極致完美！

Yamaha is premiering this new technique to bring a reasonable solution to the intermediate family. 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.

上節的音孔（除了金屬八度排氣孔）與樹脂管徑同時模製。

上節的凸榫也製為樹脂內壁的延伸，使得節與節之間能夠平滑地連接，甚至在潮濕的狀態下。

金色的商標圖案印在上節管身的背後。