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The Adams C1 Custom Series Professional C Trumpet is a professional C trumpet designed for orchestral and classical solo repertoire, built with a slightly tighter, brighter response than the C2 and a more directional sound shape for clarity in the hall. This C1 Selected configuration features an XL 12 mm (.472) bore to support increased richness of sound, expanded tonal color options, wide dynamic control, and secure projection while maintaining a centered core that carries through an orchestra.
Adams C1 Custom Series Professional C Trumpet Specifications
- Key: C
- Bell: 0.50 mm yellow brass, one-piece, hand-hammered from sheet metal
- Bell Diameter: 123 mm (4.8 inches)
- Bore: XL 12 mm (.472 inches)
- Leadpipe: Nr. 2A yellow brass, hand-hammered from sheet metal
- Valve Block: Yellow brass (medium heavy)
- Valves: 3 top-center stainless steel pistons
- Finish: Silver plate
- Case: Adams gig bag
- Accessories: Valve oil, slide grease, trigger oil, cleaning cloth, slide stopper
Condition & Setup
This trumpet is brand new and includes the full manufacturer’s warranty. As an authorized Adams dealer, we deliver this instrument professionally inspected, set up, and play-tested by our shop prior to shipment.
Who the C1 Custom Series Professional C Trumpet Is For
The Adams C1 Custom Series Professional C Trumpet is a professional orchestral C trumpet designed to provide a centered, projecting sound and precise response for classical performance. Compared with the C2, the C1 is built to feel slightly tighter and brighter, with a more directional sound that helps articulation and pitch definition stay clear within a full ensemble.
This C1 Selected model with XL bore is a strong fit for players who want additional depth and tonal flexibility without sacrificing orchestral accuracy. It is well-suited to principal and section work, auditions, and solo repertoire where core, dynamic range, and controlled projection are priorities. Mouthpiece is not included, allowing you to pair the instrument with your preferred C-trumpet setup.
Common Questions About the Adams C1
How does the Adams C1 compare to the C2?
The C1 is designed to be slightly tighter and brighter than the C2, with a more directional sound shape. This makes the C1 a common choice for players prioritizing clarity, projection, and accuracy in orchestral settings.
What does the XL bore (12 mm /.472) change on this C1 Selected model?
The XL 12 mm (.472) bore is intended to add richness, broaden tonal color options, and support extreme dynamic control and projection while retaining a solid core. It can also change the feel of resistance compared with smaller-bore setups.
What accessories come with the Adams C1 trumpet?
The trumpet includes a case and an outfit: valve oil, slide grease, trigger oil, cleaning cloth, and slide stopper. A mouthpiece is not included.
We are proud to be an authorized Adams 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
Adams C1 Custom Series Professional C Trumpet
Adams C1 Custom Series Professional C Trumpet Overview
The Adams C1 Custom Series Professional C Trumpet is a professional C trumpet designed for orchestral and classical solo repertoire, built with a slightly tighter, brighter response than the C2 and a more directional sound shape for clarity in the hall. This C1 Selected configuration features an XL 12 mm (.472) bore to support increased richness of sound, expanded tonal color options, wide dynamic control, and secure projection while maintaining a centered core that carries through an orchestra.
Adams C1 Custom Series Professional C Trumpet Specifications
- Key: C
- Bell: 0.50 mm yellow brass, one-piece, hand-hammered from sheet metal
- Bell Diameter: 123 mm (4.8 inches)
- Bore: XL 12 mm (.472 inches)
- Leadpipe: Nr. 2A yellow brass, hand-hammered from sheet metal
- Valve Block: Yellow brass (medium heavy)
- Valves: 3 top-center stainless steel pistons
- Finish: Silver plate
- Case: Adams gig bag
- Accessories: Valve oil, slide grease, trigger oil, cleaning cloth, slide stopper
Condition & Setup
This trumpet is brand new and includes the full manufacturer’s warranty. As an authorized Adams dealer, we deliver this instrument professionally inspected, set up, and play-tested by our shop prior to shipment.
Who the C1 Custom Series Professional C Trumpet Is For
The Adams C1 Custom Series Professional C Trumpet is a professional orchestral C trumpet designed to provide a centered, projecting sound and precise response for classical performance. Compared with the C2, the C1 is built to feel slightly tighter and brighter, with a more directional sound that helps articulation and pitch definition stay clear within a full ensemble.
This C1 Selected model with XL bore is a strong fit for players who want additional depth and tonal flexibility without sacrificing orchestral accuracy. It is well-suited to principal and section work, auditions, and solo repertoire where core, dynamic range, and controlled projection are priorities. Mouthpiece is not included, allowing you to pair the instrument with your preferred C-trumpet setup.
Common Questions About the Adams C1
How does the Adams C1 compare to the C2?
The C1 is designed to be slightly tighter and brighter than the C2, with a more directional sound shape. This makes the C1 a common choice for players prioritizing clarity, projection, and accuracy in orchestral settings.
What does the XL bore (12 mm /.472) change on this C1 Selected model?
The XL 12 mm (.472) bore is intended to add richness, broaden tonal color options, and support extreme dynamic control and projection while retaining a solid core. It can also change the feel of resistance compared with smaller-bore setups.
What accessories come with the Adams C1 trumpet?
The trumpet includes a case and an outfit: valve oil, slide grease, trigger oil, cleaning cloth, and slide stopper. A mouthpiece is not included.
We are proud to be an authorized Adams 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

Adams C1 Custom Series Professional C Trumpet
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, 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.

