AudioFu Chart · October 2026
Best Michael Rath Tenor Trombones with F-Attachment 2026
The top pick is Michael Rath R4F Tenor Voigt ($5,668). Michael Rath R400 Bb-/F- Tenor Trombone gives you the most for the money at $2,916. Ranked by the AudioFu Index from 5 models, prices checked every night.
Last updated: October 20, 2026
Top 5
Full detail for the 5 highest AudioFu Index scores. Every other model is listed below.
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- Size8.5"
The Rath R4F Voigt is a seriously refined tenor trombone. It’s built for players who demand excellent intonation and a responsive action—ideal for orchestral, lead, and solo work. The Voigt valve is a game-changer for effortless alternate positions and a truly professional feel.
Pros
- Exceptional intonation across the range, thanks to Rath’s precision manufacturing.
- Voigt valve provides a remarkably smooth and responsive alternate position.
- Red brass bell delivers a warm, focused tone with excellent projection.
Cons
- Premium-priced, representing a significant investment for most players.
- The 0.547in bore might feel slightly restrictive for some players accustomed to larger bores.
46AudioFu
IndexStableno change since Aug 17Aug 17$5,668 now$5,668€5,049 at Thomann · in stockCheck price ↗ -
- Size8"
This trombone plays a focused sound thanks to its narrow bore and nickel silver bell. The Voigt valve makes reaching the low F note easy and reliable. It suits players who want a classic feel without extra accessories included.
Pros
- Nickel silver bell offers strong, clear high notes
- Voigt valve ensures precise low F note access
- 13.34mm bore provides a focused, direct sound
Cons
- Small shaft may feel tight for some players
- No mouthpiece or case included in the box
46AudioFu
IndexStableno change since Aug 17Aug 17$6,172 now$6,172€5,498 at Thomann · in stockCheck price ↗ -
- Size8.5"
The Rath R6 is a serious instrument, built for players who want a focused, powerful tenor trombone tone. Its red brass bell and large bore give it a really commanding presence—it's perfect for lead players in jazz ensembles or orchestral settings who demand projection and responsiveness. This is a pro-level horn that rewards a dedicated player.
Pros
- Red brass bell delivers a rich, warm, and projecting tone ideal for solo work.
- Large 13.89mm bore provides excellent resonance and a powerful, full sound.
- R6 main tuning slide ensures exceptional intonation and playability across the range.
Cons
- The standard weight body can feel heavy for players with smaller frames or less strength.
- The red brass bell may require more frequent cleaning to maintain its optimal finish.
42AudioFu
IndexStableno change since Aug 17Aug 17$5,835 now$5,835€5,198 at Thomann · in stockCheck price ↗ -
The Rath R400 is a fantastic, premium-priced student to professional trombone. Its excellent intonation and warm tone make it a joy to play, especially for those transitioning from a beginner instrument or seeking a reliable workhorse. It's a great choice for band directors and serious players who want quality without the absolute top-tier price tag.
Pros
- Excellent intonation across the range, responsive to subtle embouchure changes
- Yellow brass bell delivers a warm, focused, and resonant tone
- The 0.547” bore offers a good balance of responsiveness and projection
Cons
- The lacquer finish, while attractive, can be prone to wear with heavy use
- The light case offers minimal protection compared to a premium hard case
34AudioFu
IndexStableno change since Aug 17Aug 17$2,916 now$2,916€2,598 at Thomann · in stockCheck price ↗ -
The Rath R300 is a fantastic choice for serious intermediate to advanced players seeking a professional-level instrument. Its responsive action, warm tone, and Rath’s renowned intonation make it ideal for orchestral playing, chamber ensembles, and solo performance – it's a workhorse trombone.
Pros
- Excellent intonation across the range, a Rath hallmark.
- The brass bell delivers a warm, focused, and resonant tone.
- Nickel silver slide provides smooth, responsive action and quick recovery.
Cons
- The 203.20 mm bell might feel large for players with smaller hands.
- Premium-priced, representing a significant investment for many.
34AudioFu
IndexStableno change since Aug 17Aug 17$2,974 now$2,974€2,649 at Thomann · in stockCheck price ↗
Tenor Trombones with F-Attachment by the numbers
Measured across all 120 models we track, not a sample.
median of 35 models · 5"–8.5"
median of 6 models · 1.1 kg–1.72 kg
How to choose the best tenor trombones with F-Attachment
Heritage & Design
Rath's design philosophy is rooted in German brass traditions - think a focus on even response across the range, not chasing a specific 'heroic' sound. They're built to be dependable, not a novelty item.
Tone Characteristics
That's the big one. Rath trombones tend to have a darker, warmer tone than your typical American brass. It's not muddy; it's got a beautiful core with a focused, singing quality. It's got a richness that really sits well in a section, and it's surprisingly versatile - from smooth jazz to powerful classical.
Valve Action & Response
The valve action on Raths is consistently smooth and reliable, even on older models. You get a really quick, responsive feel, which translates to cleaner articulation and easier altissimo. It's not lightning fast like some modern horns, but it's balanced and predictable.
Build Quality & Materials
Rath uses solid brass for their bodies and bells, and their construction is rock solid. You're not getting exotic alloys or hand-hammered bells, but the tolerances are tight, the slides move well, and they're built to withstand years of gigging. They're durable without being overly heavy.
F-Attachment Integration
The F-attachment on Rath trombones is seamlessly integrated - it's not an afterthought. The intonation is consistent across all three positions, and the feel is natural. This is a big deal for players who regularly use the lower register.
Buying guide
Alright, so you're looking at a Michael Rath tenor trombone with an F-attachment? Smart move. Rath's carved out a serious niche for themselves, especially for players who want that European warmth and responsiveness without dropping five figures. They're not flashy, but they're incredibly reliable workhorses, and finding a good used one is a real score for serious gigging or studio work.
Finding a used Rath tenor with an F is usually your best bet - they hold their value well. Watch out for heavily dented horns or slides that are excessively sticky; those are signs of neglect. Don't be afraid to spend a little more for a horn that's been properly maintained - a good mouthpiece and regular slide oil can make a world of difference.
The slightly darker tone isn't for everyone - if you're after a super bright, cutting sound, look elsewhere.
How the AudioFu Index works
Five measured signals and nothing else — no stars from strangers, no “tested by experts” we didn’t do. The weights are fixed and public. We don’t play these instruments; we measure the market around them.
This chart covers 7 tenor trombones with F-Attachment from the Thomann catalogue (of 120 in the category). Before you buy, read hands-on reviews and, where you can, play it. Full methodology.
AudioFu earns a commission when you buy through our Thomann links. It never changes the order — the index does.
- Demand40%
How many of this exact model are for sale on Reverb right now — what musicians actually buy and resell.
- Lineup20%
How many finishes Thomann stocks — makers expand the models that sell.
- Price15%
Where the price has moved since we started tracking in August.
- Specs15%
How completely the maker documents it.
- Maker10%
How deep the brand’s range is in this category.
Questions
Are Michael Rath trombones loud enough for a brass band?
Absolutely. While they're known for their warmth, they project well and have plenty of headroom to cut through a loud ensemble. They just won't be as 'aggressive' as some brighter horns.
What kind of mouthpiece do you recommend for a Rath tenor?
A 3.5 or 4.5C mouthpiece is a good starting point. Experiment with different rim shapes and cup depths to find what complements your playing style and the horn's tone. Don't be afraid to try a darker-facing mouthpiece to really lean into the Rath's warmth.
Are Rath trombones easy to play for beginners?
They're not necessarily harder to play than other quality horns, but their darker tone and more nuanced response might take a bit more practice to master. They reward a player with good breath control and a developed ear.
How do Rath trombones compare to Yamaha trombones?
Yamahas are generally brighter and more focused, while Raths offer a warmer, more resonant tone. Yamaha's are often seen as a 'student' horn, while Rath is a serious professional instrument.
Do I need to worry about corrosion on a Rath trombone?
Like all brass instruments, they can be susceptible to corrosion if not properly cared for. Regular cleaning and oiling are essential, especially if you play in humid environments.
