Yamaha

HR-33C4

One Piece
Official source link providedPrice basis: RetailerLast checked: Jan 29, 2026

Large U cup for big, expansive sound. Recommended for advanced players.

Specifications

Cup Diameter
17.68mm
16.88mm18.08mm
vs. All Models
65% · Average
Cup Depth
Medium
Cup Shape
U
Bore Size
3.98mm
3.90mm4.50mm
vs. All Models
8% · Small
Rim Shape
Medium
Recommended For
All Around
View on official site

Other Brand Similar Specs

Spec proximity does not guarantee actual feel or tone. Trying before purchase is recommended.
Tilz (Bruno Tilz) McWilliam 1WMedium Similarity
Cup Diameter: +0.02mmBore: +0.42mmCup shape data unavailable
Specs used: 4 / missing: 1
Stork CMB (Medium)Medium Similarity
Cup Diameter: +0.02mmBore: +0.92mmCup shape differs
Specs used: 5 / missing: 0
Tilz (Bruno Tilz) McWilliam 3WMedium Similarity
Cup Diameter: +0.02mmBore: +0.02mmCup Depth: medium → shallowCup shape data unavailable
Specs used: 4 / missing: 1
Laskey 775GLow Similarity
Cup Diameter: +0.07mmBore: +0.64mmCup shape data unavailable
Specs used: 4 / missing: 1
Tilz (Bruno Tilz) McWilliam 2WLow Similarity
Cup Diameter: +0.02mmBore: +0.22mmCup Depth: medium → medium shallowCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 21Low Similarity
Cup Diameter: -0.18mmBore: +0.02mmCup shape data unavailable
Specs used: 4 / missing: 1
Alexander 8FMLow Similarity
Cup Diameter: -0.18mmBore: +0.02mmCup shape data unavailable
Specs used: 4 / missing: 1
Wedge 775MLow Similarity
Cup Diameter: +0.07mmBore: +0.64mmCup shape data unavailable
Specs used: 4 / missing: 1

Other Models by Yamaha

HR-29B17.07mm · Deep · 3.90mmHR-30B17.27mm · Deep · 3.90mmHR-31B17.47mm · Deep · 3.90mmHR-32B17.67mm · Deep · 3.90mmHR-34B18.07mm · Deep · 3.90mm

Where to Find

View on Official Siteusa.yamaha.com
Search on GoogleGoogle Search

This site does not sell mouthpieces. Links are provided for reference only. Please verify prices and availability directly with retailers.