The SX90 series of Keilwerth soprano saxophones is the result of a collaboration between the renowned German brand and the famous saxophonist David Liebman. This range stands out for its innovative bore and bell design, offering exceptional resonance and a well-centered sound across all registers of the instrument. The craftsmanship in the keywork ensures impeccable mechanical precision.

The saxophones in the SX90 series are available in several finishes, including lacquered, vintage lacquered with a raw brass body and brushed nickel keywork, black nickel-plated, and two David Liebman signature models. The signature models feature a transparent varnished raw yellow brass body and raw nickel keywork. One of David Liebman's signature models has a new ergonomic keywork for easier access to the side keys, while the other features cork pads on the upper keys for added comfort. The engravings on the saxophones are handcrafted by David Liebman himself, and his signature "D.Liebman" is also engraved on the bell. The accessories have been chosen by the artist and include a swab, a stand, and key clamps. This instrument is presented in an exclusive Signature series case.

The Keilwerth SX90 soprano saxophone is particularly suited for jazz and pop musicians looking for a powerful and dynamic sound. The magnificent and modern finishes give each instrument a unique look. However, it should be noted that this instrument is not suitable for classical music due to its loud volume and the physical demands it requires.

In summary, the SX90 series from Keilwerth is a top choice for demanding saxophonists seeking an exceptionally high-quality instrument. With its innovative design, high-quality finishes, and world-renowned signature models, these soprano saxophones are truly one-of-a-kind instruments.