Hi Christopher,

Thank you for contacting Mearto with your appraisal inquiry.

The XO 1650D is a professional-level F/B♭ double French horn made under the XO Brass line (part of the Jupiter/KHS family). It was designed as a modern Geyer-wrap horn, a configuration favored by many orchestral players for its clarity, flexibility, and responsive feel.

Music critics report some noteworthy elements of the Geyer style include a more open-blowing feel, quicker response, clearer articulation and greater flexibility in color, which contrasted with the traditional Kruspe wrap, which tended to produce a broader, darker sound. Interestingly, American orchestral players prefered the Geyer style over the Kruspe one.

In terms of the French horn market, the XO 1650D was more affordable than top-tier professional horns from makers such as Yamaha Corporation, Alexander, or Hans Hoyer. It's considered a serious instrument for advanced students, conservatory players, and many working professionals.

New examples typically retail around $6,000–$6,500, with refurbished examples falling in the $4,000-5,000 range.

I don't see a serial number on your horn but the XO 1650 and 1650D models were introduced in the fall of 2021, so it's not very old. Assuming this is in as-is but good working condition, and retains good musicality, it would probably bring fair-market (secondary market) prices of between $3,000 and $4,000 at auction.

Please let us know if you have additional items to appraise, or questions/concerns, and thank you again for using Mearto.
~ Delia