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Jupiter JEP1105M Quantum MK II Marching Euphonium - Clear Lacquer

Euphonium with 11" Yellow Brass Bell, 0.592" Bore, Nickel-silver Leadpipe, 3 Stainless Steel Valves, 3rd-valve Slide Finger Ring, and 1st-valve Slide Thumb Trigger - Clear Lacquer
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Item ID: JEP1105M
Jupiter JEP1105M Quantum MK II Marching Euphonium - Clear Lacquer
Price:$3,424 and 00 cents
Special Financing - 4 days left. $72/month with 48 month financing*

New! Band and orchestra instrument rentals.
We Can Get It!

While this isn't an item we normally stock, we can still get it to you as fast as possible due to our great relationship with Jupiter. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated June 2026.

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Jupiter JEP1105M Quantum MK II Marching Euphonium - Clear Lacquer
We Can Get It!
Price:$3,424 and 00 cents
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Command the Field with Rich, Resonant Tone

Tucked between the powerful brass and the percussive heartbeat of the field, the Jupiter JEP1105M Quantum MK II euphonium brings a rich, velvety tone that adds depth and warmth to any marching band’s sound. The combination of its 0.592-inch bore, nickel-silver leadpipe, and 11-inch yellow brass bell projects this rich, dark sound all the way to the press box. Meanwhile, the 1-piece bracing and valve section design optimize this instrument’s resonance and responsiveness. The JEP1105M benefits from a unique annealing process, enhancing its timbre for a pure, warm sound and a broad dynamic range. Additionally, you’ll appreciate the lightweight, balanced design of this instrument, which minimizes fatigue during full-day rehearsals and marathon drill blocks. Finally, you get a first-valve slide trigger and a third-valve slide finger ring for easy intonation adjustment, a right-hand carrying ring for ergonomic comfort, and smooth stainless steel pistons for fast action and agile playability. With unmatched tonal richness and a player-focused design, the JEP1105M Quantum MK II stands as a commanding presence in any ensemble.

Jupiter: guaranteed through graduation

A staple in classrooms everywhere, Jupiter band instruments are beloved by music teachers for good reason. Since 1980, the company has built high-quality band instruments for students of every development level. Innovations such as the Waveline flute headjoint and the patented Ergonomic trombone are just two examples of the company’s player-centered design philosophy. Each Jupiter instrument is inspected for quality throughout the manufacturing process, ensuring that it can endure bumps and bruises as easily as it can navigate technical passages. Sweetwater believes that every student should have access to the rich musical culture that unites us all. And with Jupiter’s player-first focus, anyone is welcome to embark upon an exciting and fulfilling musical journey through high school graduation and beyond.

Jupiter JEP1105M Quantum MK II Features:

  • A durable marching euphonium with a rich, velvety tone
  • 0.592-in. bore, nickel-silver leadpipe, and 11-in. yellow brass bell offer stunning projection
  • 1-piece bracing and valve section design optimize resonance and responsiveness
  • Unique annealing process delivers a pure, warm sound with a broad dynamic range
  • Lightweight, balanced design minimizes fatigue during full-day rehearsals and marathon drill blocks
  • 1st-valve slide trigger and a 3rd-valve slide finger ring supply easy intonation adjustment
  • Right-hand carrying ring provides ergonomic comfort
  • Smooth stainless steel pistons yield fast action and agile playability
  • Includes an ABS case with an aluminum valance

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage
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Tech Specs

  • Type: Quantum MKII Marching Euphonium
  • Key: Bb
  • Level: Intermediate
  • Finish: Clear Lacquer
  • Bore: 0.592"
  • Valves: 3 x Stainless Steel Pistons
  • Bell Material: Yellow Brass
  • Bell Size: 11"
  • Body Material: Yellow Brass
  • Slide/Trigger: 1st Valve Slide Trigger, 3rd Vavle Slide Finger Ring
  • Additional Features: Right-hand Carrying Ring
  • Case/Gig Bag: JKC-EP94UA Wood-frame Case
  • Manufacturer Part Number: JEP1105M

What Makes Our Sales Engineers Great?

Sweetwater Sales Engineers are a world-class team of experts dedicated to you. Hand selected from across the globe, each brings a wealth of experience and expertise in the world of music gear to provide you with unparalleled service completely free of charge. Friendly relationships, real trust, and the right gear are only a call or a click away!

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