Yamaha
HR-30D4
One Piece
Official source link providedPrice basis: RetailerLast checked: Jan 29, 2026
Exceptionally rich tone with wide bell compatibility and high-note stability.
Specifications
Cup Diameter
17.08mm
16.88mm18.08mm
Cup Depth
Deep
Cup Shape
combined_UV
Bore Size
4.50mm
3.90mm4.50mm
Rim Shape
Medium
Other Brand Similar Specs
Spec proximity does not guarantee actual feel or tone. Trying before purchase is recommended.
Holton (Farkas) DCMedium Similarity
Cup Diameter: -0.01mmBore: +0.33mmCup shape data unavailable
Specs used: 4 / missing: 1
Schilke 31Medium Similarity
Cup Diameter: +0.06mmBore: -0.11mmCup shape data unavailable
Specs used: 4 / missing: 1
Schilke 30Medium Similarity
Cup Diameter: -0.05mmBore: -0.11mmCup shape data unavailable
Specs used: 4 / missing: 1
Engelbert Schmid 6Medium Similarity
Cup Diameter: -0.08mmBore: -0.10mmCup shape data unavailable
Specs used: 4 / missing: 1
Tilz (Bruno Tilz) E.Schmid 6Medium Similarity
Cup Diameter: -0.08mmBore: -0.10mmCup shape data unavailable
Specs used: 4 / missing: 1
Paxman 3CLow Similarity
Cup Diameter: -0.19mmBore: SameCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 6Low Similarity
Cup Diameter: -0.08mmBore: -0.80mmCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 9FLow Similarity
Cup Diameter: -0.08mmBore: -0.80mmCup shape data unavailable
Specs used: 4 / missing: 1
JK (Josef Klier) 3BKLow Similarity
Cup Diameter: -0.08mmBore: +0.10mmCup shape differs
Specs used: 5 / missing: 0
Other Models by Yamaha
Where to Find
This site does not sell mouthpieces. Links are provided for reference only. Please verify prices and availability directly with retailers.