Pre-Owned Miraphone 90A Kaiser-Tuba - 5/4 Size, Rotary Valves, Lacquer (Ex-USAF)
For sale is an absolute titan of the low brass world: a pre-owned Miraphone Model 90A Kaiser-Tuba, serial number 14603 (dating to circa 1995). Handcrafted in Waldkraiburg, Germany, Miraphone tubas are globally recognized for their immaculate rotary valve action and world-class intonation. What makes this specific horn truly exceptional is its history: it is an Ex-USAF instrument, meaning it was vetted and meticulously maintained by military technicians to perform at the highest national level.
We see these massive horns go to dedicated community band powerhouses, collegiate majors, and professional gigging musicians who need an instrument capable of anchoring the largest ensembles imaginable. Because the 90A is a true "Kaiser" (Emperor) 5/4 size tuba, you are getting an instrument that pushes a monumental volume of air, providing a deeply warm, room-filling foundation that smaller 4/4 tubas simply cannot replicate.
The "90A Kaiser" Advantage
- Massive 5/4 Kaiser Size: The extra-large dimensions and broad bell flare of the Kaiser design produce a uniquely dark, wide, and enveloping tonal core. It is the ultimate Germanic foundation instrument.
- Premium Rotary Valves: Equipped with Miraphone's legendary rotary valve system, offering an incredibly smooth, short-throw action that makes navigating fast, technical passages surprisingly agile for such a massive instrument.
- Ex-USAF Pedigree: You are getting a top-tier professional instrument that was built, vetted, and maintained to perform flawlessly under pressure for a premier military ensemble.
- The Fleming Setup: Our expert in-house staff has fully inspected, cleaned, and precision-adjusted this horn to ensure the rotors are lightning-fast and holding excellent compression.
Condition Report & Shop Prep
- Finish (Cosmetics): Good Player's Condition. The original clear lacquer shows normal, honest wear and tear from military and professional use. It possesses a great, authentic aesthetic and is completely stage-ready.
- Body: Structurally Solid. As is common with tubas of this size, there are some very minor, surface-level dents and dings, but there is absolutely no major damage or structural trauma to the instrument.
- Mechanics: Stage-Ready. The rotary valves are incredibly smooth and quiet, and the slides pull freely. It plays brilliantly right out of the box.
- Accessories: Includes a protective hard shell case. (Note to Wes: Please add if a mouthpiece is included here!)
Specifications
- Brand: Miraphone
- Model: 90A (Kaiser)
- Serial Number: 14603 (Circa 1995)
- Size: 5/4 (Kaiser-Tuba)
- Valves: Rotary Valves
- Finish: Clear Lacquer
- Provenance: Ex-United States Air Force (USAF)
- Condition: Pre-Owned / Good Professional Condition (Fully Shop Adjusted)
- Included: Hard Case
Why Choose Fleming Music? Here at Fleming Instruments, our expert on-site instrument repair workshop guarantees that each instrument we sell is meticulously inspected and accurately represented before it reaches you. We take pride in offering a 1-year warranty and 2-week return policy on all instruments, giving you peace of mind with your investment. Our team is dedicated to providing exceptional customer service, so please reach out to us at the shop via phone, email, or website contact: .
For the most competitive pricing, financing options, or to discuss a trade-in, please contact us directly!
As always, we invite you to stop by our Houston shop to try this instrument in person. Nothing compares to the experience of a horn in your own hands. Follow our accounts on Facebook, Instagram, TikTok, and YouTube for the latest updates, content, and promotions: . We are grateful for your support of our small business and look forward to helping you find your sound!


















