Keilwerth SX90R Alto Saxophone Overview

The Keilwerth SX90R Professional Alto Saxophone is a professional Eb alto saxophone known for its rolled tone holes, nickel silver construction, full-bodied response, and dark tonal profile. Built in the modern Keilwerth tradition that followed the Couf Superba era, the SX90R offers a distinctive alternative to French and Japanese professional saxophones, with strong projection, reliable intonation, and keywork designed for serious performance use. This used example has an original lacquer finish with visible cosmetic wear from normal playing, and it has been professionally serviced, adjusted, and play-tested for dependable performance.

Keilwerth SX90R Alto Saxophone Specifications

• Instrument Type: Professional alto saxophone
• Key: Eb
• Body Material: Nickel silver
• Finish: Original lacquer
• Tone Holes: Rolled tone holes
• Neck: Alto saxophone neck
• Mechanism: Modern professional keywork
• Case: Protec XL case
• Accessories: None included
• Serial number: 122982

Condition & Setup

This is a used Keilwerth SX90R alto saxophone in well-maintained playing condition. The original lacquer is approximately 90% present, with minor finish wear consistent with regular use. There are no dents and no indications of serious prior damage. The pads and action are in strong condition, and the instrument has been professionally serviced, set up, adjusted, and play-tested by our woodwind specialists.

Who the SX90R Alto Saxophone Is For

The SX90R Alto Saxophone is a professional Eb alto saxophone designed for advanced students, working performers, and saxophonists who want a powerful, dark-voiced instrument with modern ergonomics. Its rolled tone holes are intended to support pad sealing, while the nickel silver construction contributes to an efficient response with a wide dynamic range.

This model is especially suitable for players who prefer a bold, resonant alto saxophone that takes air well and produces a rich, centered sound. Compared with many contemporary French and Japanese professional altos, the Keilwerth SX90R has a distinctive tonal identity, with strong projection and a broad, dark character that works well in jazz, commercial, and amplified performance settings.

Common Questions About the Keilwerth SX90R

Is the Keilwerth SX90R a professional alto saxophone?

Yes. The Keilwerth SX90R is a professional-level Eb alto saxophone with rolled tone holes, professional keywork, and construction features intended for serious performance use.

What does the Keilwerth SX90R sound like?

The Keilwerth SX90R is known for a bold, dark, and full-bodied sound. It offers strong projection and a wide dynamic range, making it suitable for players who want a rich tonal color rather than a narrow or overly bright response.

Has this used saxophone been serviced?

Yes. This used Keilwerth SX90R alto saxophone has been professionally serviced, adjusted, and play-tested, with pads and action evaluated for reliable performance.