
Bach Classic 12 Cornet Mouthpiece Overview
The Bach 34912 Classic 12 Cornet Mouthpiece is a genuine Vincent Bach silver-plated cornet mouthpiece designed to deliver consistent response, secure intonation, and an even tonal character across the full range of the instrument. This model features a Classic 12 rim and a deep 12 cup with a 15.00 mm cup diameter, and it ships brand new in the original manufacturer’s packaging from an authorized Bach dealer.
Bach 34912 Classic 12 Cornet Mouthpiece Specifications
- Series: Vincent Bach Classic
- Instrument: Cornet
- Model: 34912
- Size: 12
- Cup: Deep
- Cup diameter: 15.00 mm
- Finish: Silver plate
Condition
Brand new in the original manufacturer’s packaging
Who the 34912 Classic 12 Cornet Mouthpiece is For
The Bach 34912 Classic 12 Cornet Mouthpiece is a silver-plated cornet mouthpiece built for players who want a deep-cup setup with consistent intonation and reliable response throughout the instrument’s range. The deep 12 cup and 15.00 mm cup diameter make it a practical choice for cornet players prioritizing a rich, uniform timbre and a feel that supports efficient playing over long rehearsals and performances.
Vincent Bach mouthpieces are widely used by serious students, advancing players, and professionals because the Classic series is designed to cover a broad range of playing needs while maintaining predictable slotting and a familiar Bach rim feel. This model is well-suited for musicians seeking a straightforward, traditional cornet mouthpiece configuration without guesswork.
Common Questions about the Bach Classic 12 Cornet Mouthpiece
What does the “12 deep cup” specification mean on the Bach 34912?
It means the mouthpiece uses a Classic 12 size with a deeper cup profile, which typically supports a fuller cornet sound concept and a stable feel, especially when playing across a wide dynamic range.
Is the Bach 34912 suitable for professional cornet playing?
Yes. Genuine Vincent Bach mouthpieces are commonly used by professional musicians, and the 34912 is a standard-format cornet mouthpiece designed for consistent intonation, response, and a uniform timbre.
Is this mouthpiece new and does it include original packaging?
Yes. This mouthpiece is brand new and ships in the original manufacturer’s packaging from an authorized Bach dealer.
We are proud to be an authorized Bach dealer
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99
Bach 34912 Classic 12 Cornet Mouthpiece in Silver Plate
Bach Classic 12 Cornet Mouthpiece Overview
The Bach 34912 Classic 12 Cornet Mouthpiece is a genuine Vincent Bach silver-plated cornet mouthpiece designed to deliver consistent response, secure intonation, and an even tonal character across the full range of the instrument. This model features a Classic 12 rim and a deep 12 cup with a 15.00 mm cup diameter, and it ships brand new in the original manufacturer’s packaging from an authorized Bach dealer.
Bach 34912 Classic 12 Cornet Mouthpiece Specifications
- Series: Vincent Bach Classic
- Instrument: Cornet
- Model: 34912
- Size: 12
- Cup: Deep
- Cup diameter: 15.00 mm
- Finish: Silver plate
Condition
Brand new in the original manufacturer’s packaging
Who the 34912 Classic 12 Cornet Mouthpiece is For
The Bach 34912 Classic 12 Cornet Mouthpiece is a silver-plated cornet mouthpiece built for players who want a deep-cup setup with consistent intonation and reliable response throughout the instrument’s range. The deep 12 cup and 15.00 mm cup diameter make it a practical choice for cornet players prioritizing a rich, uniform timbre and a feel that supports efficient playing over long rehearsals and performances.
Vincent Bach mouthpieces are widely used by serious students, advancing players, and professionals because the Classic series is designed to cover a broad range of playing needs while maintaining predictable slotting and a familiar Bach rim feel. This model is well-suited for musicians seeking a straightforward, traditional cornet mouthpiece configuration without guesswork.
Common Questions about the Bach Classic 12 Cornet Mouthpiece
What does the “12 deep cup” specification mean on the Bach 34912?
It means the mouthpiece uses a Classic 12 size with a deeper cup profile, which typically supports a fuller cornet sound concept and a stable feel, especially when playing across a wide dynamic range.
Is the Bach 34912 suitable for professional cornet playing?
Yes. Genuine Vincent Bach mouthpieces are commonly used by professional musicians, and the 34912 is a standard-format cornet mouthpiece designed for consistent intonation, response, and a uniform timbre.
Is this mouthpiece new and does it include original packaging?
Yes. This mouthpiece is brand new and ships in the original manufacturer’s packaging from an authorized Bach dealer.
We are proud to be an authorized Bach dealer
Pairs well with
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99

Bach 34912 Classic 12 Cornet Mouthpiece in Silver Plate
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders valued over $99 ship via FedEx 2-Day within the U.S. and via DHL internationally. A physical address (no P.O. Boxes) and signature are required. Smaller accessories ship via USPS (2–5 day service) and do not require a signature if valued under $99. Please see our FAQ for additional details.
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Return Policy
We offer an unconditional 30-day return policy to ensure you’re completely satisfied. If you’re unhappy for any reason, return the item for a full refund or full exchange credit (reeds and other consumables are non-returnable once opened). Every instrument we sell is guaranteed to be free of mechanical defects—if an issue arises, contact us and we’ll either reimburse a local repair or provide a prepaid return label for repair, exchange, or refund. If you simply change your mind, you may still return the item for a full refund, but return shipping costs are the customer’s responsibility unless free returns were purchased through Redo at checkout. Please see our FAQ for additional details.
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Shop Warranty:
Brand new items are covered by the full manufacturer’s warranty unless otherwise noted (see the individual maker for details). Open box/refurbished, used, and vintage items include a two-year warranty serviced by our in-house repair shop, and we guarantee every instrument will be free of mechanical defects. Warranty coverage does not include damage from accident, misuse, negligence, improper operation, unauthorized alterations or removed serial numbers, normal wear and routine maintenance, environmental damage (including perspiration, corrosion, or extreme temperature and humidity), lacquer or plating wear, or consumable parts such as springs, pads, and felts. Please see our FAQ for additional details.
