Yamaha
HR-31D4
One Piece
Official source link providedPrice basis: RetailerLast checked: Jan 29, 2026
Heavy tone and high volume with flat rim design for easy playability.
Specifications
Cup Diameter
17.28mm
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.
Paxman 4CMedium Similarity
Cup Diameter: +0.12mmBore: SameCup shape data unavailable
Specs used: 4 / missing: 1
Schilke 31BMedium Similarity
Cup Diameter: +0.12mmBore: SameCup shape data unavailable
Specs used: 4 / missing: 1
Conn 3Medium Similarity
Cup Diameter: -0.01mmBore: +0.15mmCup Depth: deep → medium deepCup shape data unavailable
Specs used: 4 / missing: 1
Denis Wick 6NMedium Similarity
Cup Diameter: -0.03mmBore: SameCup Depth: deep → mediumCup shape differs
Specs used: 5 / missing: 0
Bach 7Medium Similarity
Cup Diameter: -0.03mmBore: SameCup Depth: deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1
Giddings & Webster FH-2.5Low Similarity
Cup Diameter: -0.03mmBore: -0.05mmCup Depth: deep → mediumCup shape data unavailable
Specs used: 4 / missing: 1
Breslmair 1E4-SLow Similarity
Cup Diameter: +0.02mmBore: -0.20mmCup Depth: deep → medium deepCup shape data unavailable
Specs used: 4 / missing: 1
Breslmair 2E4-SLow Similarity
Cup Diameter: +0.02mmBore: -0.20mmCup Depth: deep → medium deepCup shape data unavailable
Specs used: 4 / missing: 1
Breslmair 3E4-SLow Similarity
Cup Diameter: +0.02mmBore: -0.20mmCup Depth: deep → medium deepCup shape data unavailable
Specs used: 4 / missing: 1
Other Models by Yamaha
Where to Find
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