SKU: 19218486421

S.E. Shires Model Q39YR Q-Series Contrabass Trombone with Rotax Valves

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Description

S.E. Shires Model Q39YR Q-Series Contrabass Trombone with Rotax ValvesS. E. Shires Q39YR Contrabass Trombone Overview The S. E. Shires Model Q39YR Q Series Contrabass Trombone is a modern, American tuned contrabass trombone designed to deliver breadth, clarity, and responsive control across the full register. Built around an independent F C Db A valve system with Rotax rotary valves, the Q39YR offers stable intonation and fluid transitions while keeping the valve layout familiar to bass trombonists. A . 590 inch bore

S.E. Shires Q39YR Contrabass Trombone Overview

The S.E. Shires Model Q39YR Q-Series Contrabass Trombone is a modern, American-tuned contrabass trombone designed to deliver breadth, clarity, and responsive control across the full register. Built around an independent F/C/Db/A valve system with Rotax rotary valves, the Q39YR offers stable intonation and fluid transitions while keeping the valve layout familiar to bass trombonists. A .590 inch bore and a 10.5 inch two-piece yellow brass detachable-flare bell support a broad, resonant sound with depth and presence, finished in clear lacquer and supplied with a factory S.E. Shires case, mouthpiece, and care kit.

S.E. Shires Q39YR Contrabass Trombone Specifications

  • Instrument: Contrabass trombone
  • Key: F/C/Db/A (independent), American tuning
  • Bore: .590 inch
  • Valves: Rotax rotary valves
  • Bell: 10.5 inch, two-piece yellow brass, detachable flare, soldered bead
  • Finish: Clear lacquer
  • Case: S.E. Shires case
  • Accessories: Mouthpiece, care kit

Condition & Setup

New. This instrument has been professionally serviced, set up, and play-tested to confirm proper valve function, slide action, and overall performance.

Who the Q39YR Contrabass Trombone Is For

The Q39YR contrabass trombone is an American-tuned, independent-valve contrabass trombone built for players who need a powerful low-brass voice with clear response and secure control. Because its F/C/Db/A configuration parallels common bass trombone valve layouts, many scale patterns and technical habits transfer directly from bass trombone, helping experienced bass trombonists adapt quickly while encouraging an effective balance between valve use and extended-position slide technique.

This model is well-suited for orchestral and large-ensemble work where projection and stability are required, and it also supports solo and chamber playing where clarity and clean transitions matter. The .590 inch bore and 10.5 inch detachable-flare yellow brass bell are designed to provide a broad, resonant core sound with depth and color while retaining the refinement and characteristic response associated with S.E. Shires instruments.

Common Questions About the S.E. Shires Q39YR

What does “American tuning” mean on the Q39YR?

American tuning on the Q39YR refers to the independent F/C/Db/A system arranged to feel familiar to bass trombonists, with valve combinations and patterns that closely parallel standard bass trombone valve layouts.

What is a Rotax Rotary Valve?

A Rotax valve is a specialized rotary valve design used on high-end brass instruments that helps bridge the gap between European and American tuning concepts. Its defining feature is a distinctive internal rotor geometry that begins relatively flat and transitions into an expanding shape, reducing air turbulence and allowing for smoother airflow back into the instrument. In practice, Rotax valves are prized for their light, fast action and the “solid core” they provide in the low register, a quality many players consider essential for contrabass performance. They also offer a notably centered and secure response, often feeling more stable than axial-flow valves while retaining quickness. As a result, Rotax valves combine the free-blowing efficiency of modern valve designs with the tactile feedback and clarity associated with traditional rotary systems.

What is the advantage of the detachable-flare bell?

The 10.5 in detachable-flare bell improves portability and supports flexibility in feel and response while retaining the core tonal characteristics of a two-piece yellow brass bell.

We are proud to be an authorized S.E. Shires dealer

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SKU: 19218486421

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C. Hunter
Houston, US
★★★★★ 5
Beta, Alpha, Omega oh my!
Format: Kindle
Omegas are precious and given to Alphas & their packs... but the Betas want in too. To this end, the Beta government is rolling out its trial of assigning a Beta to each Alpha-Omega pack. But forcing a Beta into a pack where they are not wanted will not end well... Of course, no one expected the Omega to fall for the assigned Beta. Great read and cliffhanger
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Reviewed in the United States on February 15, 2025
B
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B. Stubby
San Leandro, US
★★★★★ 3
A familiar story, just with…..less.
Format: Kindle
So, as other reviewers make clear, this is very similar to Pack Darling and The Beta. It’s much closer aligned with The Beta, in plot and maybe more like Pack Darling with characters. That being said, I don’t hate this…..but it wasn’t great either. It’s both books mentioned but just….less. Less angst, less emotion, less feeling. The plot feels very half fleshed out, and the “bad guy” feels underwhelming. I didn’t really feel any real emotions from and of the male leads, except maybe Oliver. The others fell sorta flat for me. And Mika makes herself out to be this big bad ass straight outta training and then we never see it from here again with the one fitting room incident as the exception. SPOILER: The whole, “Oh, I’m actually probably an Omega, but I don’t wanna be but I do actually wanna be but no one can ever know my secret that I do nothing to hide “ thing fell so flat. She never commutes to believing she was secretly an omega, but also mentions her “secret” a lot. It just felt so manufactured. I’m intrigued enough to read part 2 and see how the author closes everything out, but this is not one I’ll recommend or ever come back to.
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Reviewed in the United States on February 13, 2024
R
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Ruth Ann Burt
Phoenix, US
★★★★★ 5
Great book
Format: Kindle
I absolutely feel in love with all 4 characters!!! The bedroom scenes were 🌋🌡🔥🔥🔥. I couldn't put this book down!!! I'm hooked for the whole series Book 2 here I come!!!!! Its a fun easy book and story to read!!
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Reviewed in the United States on October 4, 2024
D
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Danyelle
Natrona Heights, US
★★★★★ 4
Fun with a late blooming omega
Format: Kindle
I like this book. The story is fun, cute, and sexy. There's just a little drama, some excellent, steamy scenes, and a fairly good relationship building storyline. I especially like how all the main characters are a bit older than the usual 20 somethings I tend to see in this kind of book. Having said that, I wish there were more descriptions of the places, as well as the food in the fancy restaurant. I enjoyed the cocktails at the club, so I missed that kind of detail when Gray took Madison on a dinner date. I also wish there had been more interaction between Lucas and Madison, and Lucas and Rian. It felt a bit lopsided, with a focus on Rian, Madison, and Gray. I wish it had been proofread - there are a lot of typos, but nothing too distracting.
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Reviewed in the United States on September 12, 2022
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Jennifer G
Port Orchard, US
★★★★★ 3
Madison Deserved Better
Format: Kindle
Madison was a beta...except she wasn't any longer. She was a late presenting Omega. And she was struggling. She was tall and thin, not tiny and curvy. She was opinionated. She was everything an Omega was not. After suffering through her first heat, her friends took her to Ardor, a club where Omegas came to safely find Alphas. She's not expecting much but then she connects with a sexy beta. And when she meets his Alphas, they set her body on fire. Maybe, she's found her no-strings-attached heat pack. Maybe, she's found something more. I could not connect with the characters in this book, so their story never resonated with me. And there was no love story; there was sex. Grey made it clear from the beginning that he had a true love and it was his beta boy, Rian. He went so far as to reassure Rian “Say the word, I’ll never touch her again. Lucas can put the babies in her. I only need you, beta boy”. So, Madison was there for babies, no emotions needed. Nice. No, thank you. I want the Omega to be the center of their world, not an incubator. Lucas and Rian weren't any better. After her heat, they let her leave. Not one of them made her feel valued. No one gave her a reason to stay or even offered a cuddle. And the sex didn't even come across as mind-blowing. Madison deserved better.
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Reviewed in the United States on March 11, 2025

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