Mouthpieces Trumpet & Cornet
Abbreviation Trumpet, Flugelhorn und Cornet – Explanation
Instrument | Example | Series | Category
(optional) |
Cup mm Ø | Cup depth | Shank
(optional) |
Back bore | Designation |
Trumpet:
Abbreviation TR |
No. 5C | Exclusive | BigBand, Piccolo, Classic | 5 | C | A1, A2 or A3 | JK Exclusive Classic 5C A2 | |
Trumpet:
Abbreviation TR |
No. 1 ½ | USA | 1 ½ | C | JK 1 ½C |
|||
Cornet:
Abbreviation C |
No. 5C | Exclusive | Export | 5 | C | A1 or A2 | JK Exclusive C 5C A2 | |
Cornet:
Abbreviation C |
No. 1 ½ | USA | 1 ½ | C | JK C 1 ½C |
Further deviations of the mouthpieces must be indicated separately, e.g. bore 3.8 mm.
If no shaft size is specified, the standard is used.
The cup depth also determines the size of the hole in some instruments.
JK Trumpet
Choose your suitable mouthpiece using the table below.
If you have any questions, please contact us.

Trumpet "Exclusive" – bore 3.7 mm
Trumpet-Big Band "Exclusive" – bore 3.6 mm
Trumpet Exclusive Lead - bore 3.6 mm

Trumpet-Piccolo "Exclusive" – bore 3.8 mm
Trumpet-Classic "Exclusive" – bore 3.8 mm
JK „Classic“ trumpet mouthpieces are an extension to the Exclusive Series. According to the today's sound expectations in classical music, these models are offering a deeper volume in combination with a much focused sound. The rim and cup diameters as well as the rim shape are identical to the JK Exclusive models. This enables the player to the switch easily between both mouthpiece lines.
Trumpet "USA"
Bore 3.6 mm, also available in 3.8 mm.

JK Cornet
Cornet "Exclusive"

Cornet "Export-Line Exclusive"
Exclusive mouthpieces with screw rim
Each mouthpiece of the JK-Exclusive trumpet and cornet series also can be bought as bottom part and screw-on rim. All screw-on rims can be delivered as silver plated brass, high gloss gold plated or as white plastic, e.g. to give allergic costumers an alternative or to make possible comfortable playing in winter.
The rim contours -1, -2, -3, -4 and -N are transferable to all diameters of the Exclusive series.
For instance, the bottom part 5C can be matched with the rims 5-1, 5-2, 5-3 etc. Each screw-on variant can be manufactured as one-piece mouthpiece too.
Example
Cologne model Cornet
Cologne model Jazz Trumpet
Cologne model Rotary Trumpet
Cologne model Trumpet, Fanfare
Mouthpieces / Trumpet & Cornet