SKU: 70180174762

Bach 351 Classic Trumpet Mouthpiece

Sale price$51.29 Regular price$56.99
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Description

Bach 351 Classic Trumpet MouthpieceGet closeout pricing on remaining sizes of the Bach Classic trumpet mouthpiece. Choose from the drop down menu. Final sale. The Bach 351 trumpet mouthpiece collection is the archetype for most modern mouthpiece designs. The vast range of sizes available allows any player to choose a Bach mouthpiece and improve their comfort, efficiency and sound. The sizing system illustrated here is used by many other brands and has become a standard for comparison.

Get closeout pricing on remaining sizes of the Bach Classic trumpet mouthpiece.  Choose from the drop-down menu.  Final sale.

The Bach 351 trumpet mouthpiece collection is the archetype for most modern mouthpiece designs. The vast range of sizes available allows any player to choose a Bach mouthpiece and improve their comfort, efficiency and sound. The sizing system illustrated here is used by many other brands and has become a standard for comparison.

Most of these descriptions are culled from the Vincent Bach Mouthpiece Manual, which is worth a look. The manual is a treasure trove of information. The last sentence in each, comparing the size to the adjacent mouthpiece, is based on viewing the Kanstul Mouthpiece Comparator.

The Bach mouthpieces below and those in the drop down menu are the models we stock. There are a few other sizes readily available. If you wish for a more obscure size of Bach mouthpiece, please call or email. Most sizes are available within 1-2 weeks. We also stock a selection of Bach cornet and flugelhorn mouthpieces.

Bach Trumpet Mouthpieces

Model

 

Cup Diameter

Cup Depth

Backbore

 

1

17.50mm

Deep

24

 

Deep cup, medium thin rim, extra large cup for players with a robust embouchure, produces a great volume of tone. Rounder rim than the 1C with the high point toward the middle of the rim, less inside edge bite than 1C, may feel wider, more cup volume.

 

 

1C

17.00

Medium

10

 

Medium cup, medium wide rim. Large diameter, medium cup, good for all-around use. Slightly shallower cup than the 1, more bite to the inside of the rim. Rim is rounded toward the outside.

 

 

1 1/4C

17.00

Medium

10

 

Medium cup, medium wide rim, large cup for powerful trumpeters. Compact tone of great carrying power. Rounder rim than 1C, high point of the rim is much wider, towards the center of the rim, smoother transition from rim to cup, less verticle drop, less cup volume than 1C, similar depth.

 

 

1 1/2C

17.00

Medium

10

 

Medium wide rim, not too sharp. Large diameter, medium cup, good for all-around use. Very popular classical mouthpiece for advanced players. Close to 1 1/4C, slightly less cup volume, rounder rim profile.

 

 

2 1/2C

16.40

Medium

10

 

Medium wide rim, lowered toward the outside, large cup, brilliant, heroic, crisp C trumpet tone, for players with strong muscular lips. More bowl shaped cup with more defined shoulder at the bottom, rim edge has more bite, faster more vertical drop into the cup.

 

 

3B

16.30

Medium Deep

7

 

Medium wide rim, medium deep cup, fairly large cup with a warm and full tone. Round rim, less cup volume than the 2 1/2C, slightly more conical cup profile.

 

 

3C

16.30

Medium

10

 

Medium wide rim, fairly large cup, good for all-around use. Very popular mouthpiece. Flatter rim than 3B, shallower cup with less cup volume.

 

 

5B

16.25

Medium Deep

7

 

Medium wide rim, lowered toward the outside, medium sharp edge, precise rim and medium deep, fairly large cup, full and vivid tone. Similar rim profile to 3C, more drop to the outside of the rim, deeper cup.

 

 

5C

16.25

Medium

10

 

Medium wide rim, well rounded towards the inside and outside, fairly flat, medium cup, for players with a strong embouchure who do not like a sharp edge. The tone is lively and rich. Very subtle difference between 5B and 5C. A tiny bit less cup volume compared to the 5B.

 

 

5MV

16.25

Medium Deep V

25

 

Medium wide rim, lowered toward the outside, medium sharp edge. Medium deep V style cup with #25 throat and #25 backbore. Deep, good commercial sound. Rimn is slightly narrower than 5C, more rounded toward the outside edge, steeper drop from the rim into the cup, then it transitions to a V cup with less should above the throat.

 

 

7C

16.20

Medium

10

 

Medium wide rim, lowered toward the outside, medium sharp inside. Well-rounded edge with a perfect grip. Probably the most widely used model in the world. Its brilliant tone is preferred by school musicians and by artists. Similar to 5C, but with slightly more bit to the inside of the rim, steeper drop into the cup, slightly more bowl shaped. Rim is wide and rounded towards the outside edge.

 

 

7E

16.20

Shallow

117

 

Medium wide rim, similar to 7C, shallow cup, this Eb trumpet cup produces a crisp, sparkling tone in the extreme high register. Widely used for piccolo trumpet. Also available with cornet shank.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70180174762

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Great case. My iPad feels very safe in this case compared to my other ones. Easy to clean and the color matches the picture.
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Reviewed in the United States on June 8, 2026
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West Palm Beach, US
★★★★★ 5
Great product
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Awesome product. It does everything I need it to. Very smooth and stylish as well.
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Kindle Customer
Grantham, US
★★★★★ 4
keyboard and case is phenomenal, trackpad is borderline unfunctional
Color: Black
I bought this case, because of the keyboard and trackpad, i wanted to use my ipad more like a laptop. the keyboard is phenomenal and certaintly better than other cheap ipad keyboards i have tried, I can actually use this one without having to repeatedly slam or hard press certain keys and can actually have a flow of typing. additionally, everything else regarding the case itself is amazing. it isnt cumbersome or bulky and it is very easy to swap between ipad and laptop mode on the fly. the trackpad however is genuinely unusable. the sensitivity on the trackpad is horrid and I cannot figure out how to change it, and additionally, clicking using the trackpad is outright impossible. you try to left click, it registers as a right click, or you try to click and it instead snaps your cursor to the bottom of the screen instead. it is also impossible to use any gesture functions with the trackpad, even something as simple as scrolling up and down or left to right is impossible. it is outright impossible to have any kind of workflow using the trackpad. it is unfortunately just a lot easier to use the keyboard and touch screen! its a shame that the keyboard and case itself is very nice too, so I will now have to spend more money on a separate mouse, which is additionally ANOTHER item i will have to carry around, just to make what I already bought work the way I expected.
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Reviewed in the United States on June 4, 2026
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Jessie A.
Pawtucket, US
★★★★★ 5
Great quality at a great price range!
Color: Navy Blue
Works very well for the day to day. Great quality at a great price range. Would definitely buy again if needed.
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Allana W
Bozeman, US
★★★★★ 5
Solid case.
Color: Sky-Blue
Love this case. Fits great and the color is great! The keyboard is nice and it even has a little spot for a stylist.
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Reviewed in the United States on June 3, 2026

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