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Yamaha YEP-321S 4-valve euphonium

Yamaha YEP-321S 4-valve euphonium

Yamaha YEP-321S euphonium in silver for sale!  Excellent condition compared to most of the ones you’ll find on the used market.  Very little if any wear to the plating, some medium dents along the bow as seen in the photos, and a few smaller ones and other small imperfections here and there.  All tuning slides are free, valves are fast and smooth, just back from a total immersion chemical clean on March 10.  Includes a 6-1/2AL mouthpiece, and a Yamaha 47 mouthpiece, both with wear but usable. This is the most popular intermediate-level euphonium among high schools and colleges.  (The King 2280 is a clone of this.)  Likely the cleanest and best-looking 321 you’ll find for sale.  Sells new at WWBW for $2,745, so snatch this one up before the back-to-school rush, and save more than a thousand dollars!


The following is from the Yamaha website, and may not reflect design changes made since this particular horn was manufactured:



Euphonium for dedicated low brass students.

The Yamaha YEP-321 Euphonium features a small shank receiver with a .571 inch bore for easy tone production and response for the advancing student. The 4 nickel-plated top action valves offer excellent, quick action. The YEP-321 includes a hard case, small shank mouthpiece and valve oil.

The YEP-321 Series is one of the most popular models with advancing players and band directors.

Honed Valves
The precise fit between valve casings and pistons after honing means no air leakage.

Pressure Formed Tubing
Perfectly rounded tubing results in less turbulence and a smoother air flow, allowing for an excellent scale and reduced resistance.

Laser-Fused Pluzuma Welded Bell
A high-energy laser fuses the brass together for a virtually seamless bell, which allows continuous even vibrations.

The excellent intonation of the YEP-321 helps to foster a feel for correct pitch, especially in beginning players.

The responsiveness of the YEP-321 assists beginning players in learning the phrasing of the euphonium.

All Yamaha brass instruments come with a limited 5-year warranty.



  • Key: Bb
  • Bore: .571-inch
  • Bell: 11-inch
  • Bell Material: Yellow Brass
  • Bell Position: Upright
  • Valves: Nickel Plated
  • Number of Valves: 4
  • Valve Position: Top
  • System: Standard
  • Features: Gold Brass Leadpipe; Yellow Brass Valve Casing
  • Case: Yes
  • Mouthpiece: 48M
  • Mouthpiece Shank: Small
  • Finish: Lacquer, Silver


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