Overview
This Rath R10 small bore jazz trombone was built in England during the early days of Michael Rath’s production and carries a very low serial number: SN 025. Instruments from this period were built before Rath expanded modular systems across the lineup, and this example reflects that earlier design philosophy.
The instrument features a 7.5" gold brass bell paired with a .500 bore nickel silver handslide, a combination that produces a refined and controlled lead sound with excellent response. The bell remains in its original lacquer with some natural play wear, particularly around the neck area where lacquer loss is common from normal use. Despite this cosmetic wear, the instrument remains structurally excellent and plays beautifully.
Gold brass bells naturally emphasize warmth and complexity in the sound, reducing some of the brighter high-frequency overtones that can occur with yellow brass bells. When paired with a nickel silver handslide, the result is a tone that remains focused and articulate while still retaining depth and richness.
This concept mirrors setups favored by many orchestral players—such as the classic gold brass bell paired with nickel silver slide combinations used by members of the Chicago Symphony in their Bach setups. In a jazz context, this pairing produces quick response, tight front-end articulations, and a balanced tonal palette ideal for lead playing or commercial work.
This instrument has received full shop service here at The Brass Exchange, including chemical bath cleaning and a complete inspection. The slide is exceptionally smooth and the horn is fully ready for professional use.
Included with the instrument is a Protec case, offering lightweight protection and convenient transport.
Player Perspective
The Rath R10 occupies a unique space in the small bore trombone world. It offers the clarity and projection expected from a lead jazz horn while delivering a slightly more complex tonal color compared with many traditional small bore designs.
The gold brass bell adds warmth and density to the sound, allowing players to achieve a refined lead tone without excessive brightness. At the same time, the nickel silver slide keeps articulation crisp and fast.
Players often notice:
• Immediate response across the register
• Clean articulations at soft and loud dynamics
• Focused projection that carries easily in a big band
• Balanced tonal complexity without excessive brightness
This makes the R10 a great fit for:
• lead jazz trombone
• commercial and studio playing
• big band sections
• advanced students stepping into professional-level equipment
For advancing players seeking their first professional jazz trombone, this instrument offers a level of craftsmanship and tonal refinement rarely found in entry-level horns.
Questions Trombone Players Often Ask
What makes the Rath R10 different from other small bore jazz trombones?
The R10 is designed specifically as a professional lead trombone. Its 7.5" bell and .500 bore slide provide quick response and strong projection, while Rath’s craftsmanship adds tonal complexity and smooth slide performance. Compared to many traditional small bore horns, the R10 often feels slightly broader and more refined in sound.
Why does a gold brass bell change the sound?
Gold brass contains a higher copper content than yellow brass, which slightly softens the brightest overtones. The result is a tone that many players describe as warmer and more complex, while still maintaining clarity and projection. This pairing works especially well with nickel silver slides, which add articulation and focus.
Are early Rath trombones modular like newer models?
Many newer Rath instruments are modular and allow interchangeable components. Earlier examples—such as this low serial number R10 (SN 025)—were built before Rath expanded the modular system across the product line. These early horns still feature Rath’s craftsmanship and signature design elements, including the Rath balance weight system.
Condition Summary
• Pre-owned instrument in strong playing condition
• Early production Rath R10 – serial number 025
• 7.5" gold brass bell
• .500 bore nickel silver handslide
• One removable leadpipe included
• Rath signature tuning slide balance weight system
• Original lacquer with moderate play wear and lacquer loss around neck area
• Handslide is exceptionally smooth and properly aligned
• Full shop service completed including chemical bath and inspection
• Includes Protec case
• Mouthpiece not included
This instrument is fully serviced and ready to play immediately.
Ordering & Fulfillment
Orders may be placed directly through our website for secure checkout.
We ship instruments professionally packed using FedEx insured delivery to ensure safe arrival. Tracking information is provided when your order ships.
Trade-ins are welcome and can be applied toward the purchase of this instrument.
🔄 Considering an upgrade? Complete our Trade-In Form to get started.
Why Players Trust The Brass Exchange
The Brass Exchange has specialized in professional brass instruments since 2010, serving thousands of musicians, educators, and collectors worldwide.
Our shop focuses on:
• professional trombones and custom brass instruments
• expert instrument setup and inspection
• curated vintage and modern instruments
• honest condition descriptions and detailed photography
Every instrument we sell is professionally inspected and serviced when needed before shipment.
Explore More Rath Trombones
Interested in learning more about Rath custom trombones made in England?
Explore additional curated Rath models in our archive, including the R2, R3, R4, R9 bass trombone, and R11 alto trombone, each documented with detailed photos and descriptions from instruments that have passed through our shop.
📚 Explore Rath trombones in our Archive of Sold instruments
🔎 Browse our current trombone inventory
🔄 Considering an upgrade? Trade-ins are always welcome.
















