Trombone | Euphonium | Tenor Horn | Alto Horn | Tuba
Abbreviation Trombone, Euphonium, Tenor Horn, Alto Horn, Tuba – Explanation
| Instrument | Example | Series | Category
(optional) |
Cup mm Ø | Cup depth | Shank
(optional) |
Designation |
| Trombone:
Abbreviation P |
No. 5C | Exclusive | 5 | C | tenor-, baritone or bass trombone shank | JK Exclusive 5C | |
| Trombone:
Abbreviation P |
No. 6 ½ A | USA | 6 ½ | A | tenor-, baritone or bass trombone shank | JK 6 ½ A | |
| Tenor Horn:
Abbreviation TH |
No. 7E | Exclusive TH | 7 | E | tenor-, baritone or bass trombone shank | JK Exclusive TH 7E | |
| Euphonium:
Abbreviation EU |
No. 7B | Exclusive EU | 7 | B | tenor-, baritone or bass trombone shank | JK Exclusive EU 7B | |
| Tuba | Exclusive | Exclusive | 1 | AA | JK Exclusive 1AA | ||
| Tuba | Classic | Exclusive | Classic | 1 | AA | JK Exclusive Classic 1AA | |
| Tuba | 24AW | USA | 24AW | JK 24AW |
Further deviations of the mouthpieces must be indicated separately, e.g. bore 8.4 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 Trombone
Trombone – Bass Trombone "Exclusive"
| No. | rim mm Ø | cup mm Ø | extremely deep | very deep | very deep | deep | medium | shallow | very shallow | extremely shallow | extremely shallow |
| bore mm | |||||||||||
| 8.0 | 7.6 | 7.2 | 6.8 | 6.4 | 6.0 | 5.8 | 5.8 | 5.8 | |||
| PO3 | 42.0 | 29.50 | 03AK | 03BK | 03A | 03B | 03C | ||||
| PO2 | 41.5 | 29.00 | 02AK | 02BK | 02A | 02B | 02C | ||||
| PO1 | 41.0 | 28.50 | 01AK | 01BK | 01A | 01B | 01C | ||||
| P 1 | 40.5 | 28.00 | 1AK | 1BK | 1A | 1B | 1C | ||||
| P 2 | 40.5 | 27.50 | 2AK | 2BK | 2A | 2B | 2C | ||||
| P 3 | 40.5 | 27.00 | 3AK | 3BK | 3A | 3B | 3C | 3D | |||
| P 4 | 40.0 | 26.50 | 4A | 4B | 4C | 4D | 4E | 4F | |||
| P 5 | 40.0 | 26.00 | 5A | 5B | 5C | 5D | 5E | 5F | 5G | ||
| P 6 | 39.0 | 25.75 | 6A | 6B | 6C | 6D | 6E | 6F | 6G | ||
| P 7 | 39.0 | 25.50 | 7A | 7B | 7C | 7D | 7E | 7F | 7G | ||
| P 8 | 39.0 | 25.25 | 8A | 8B | 8C | 8D | 8E | 8F | 8G | ||
| P 9 | 38.0 | 25.00 | 9B | 9C | 9D | 9E | 9F | 9G | |||
| P10 | 38.0 | 24.50 | 10B | 10C | 10D | 10E | 10F | 10G | |||
| P12 | 38.0 | 24.00 | 12C | 12D | 12E | 12F | 12G | ||||
| PS C | 40.5 | 28.00 | bass trombone "model Cieslik" bore 7.4 mm |
AK and BK models can be regarded as bass trombone mouthpieces. F and G models are designed for the alto trombone but in combination with the E cup these models are the perfect choice for Jazz and Lead- trombone players.
| Standard: | Optional: |
| silver plated | gold plated |
| back bore A2 | bottom part silver plated with plastic rim |
| shank 10.8 mm | bottom part silver plated with metal rim |
| AK- and BK- model 12.5 mm | perspex |
| baritone shank "B": 11.5 mm | |
| bass trombone shank "L": 12.5 mm |
Trombone "USA-Line"
Bore 5.8 mm • 6 ½ AL 6.4 mm • 6 ½ AM 6.2 mm
| No. | 4 | 4 C | 5 | 6 ½ A | 6 ½ AM | 6 ½ AL |
7 C | 11 C | 12 C | 12 E | 15 |
| rim mm Ø | 39.4 | 38.2 | 39.1 | 39.2 | 39.2 | 39.2 | 37.8 | 38.6 | 38.2 | 38.2 | 37.2 |
| cup mm Ø | 26.0 | 26.0 | 25.3 | 24.8 | 24.8 | 24.8 | 24.5 | 24.5 | 24.0 | 24.3 | 24.3 |
| Standard: | Optional: |
| silver plated | gold plated |
| tenor trombone shank: 10.8 mm | bottom part silver plated with plastic rim |
| perspex | |
| baritone shank "B": 11.5 mm | |
| bass trombone shank "L": 12.5 mm |
Bass Trombone "USA-Line"
Bore 7.0 mm
| No. | 1 ½ G | 4 G | 5 G |
| rim mm Ø | 39.3 | 39.5 | 39.0 |
| cup mm Ø | 27.4 | 26.0 | 25.5 |
| Standard: | Optional: |
| silver plated | gold plated |
| shank 12.5 mm | bottom part silver plated with plastic rim |
| perspex |
Contrabass Trombone "Exclusive"
| No. | rim mm Ø | cup mm Ø | very deep | very deep | deep |
| bore mm | |||||
| 8.4 | 8.2 | 8.0 | |||
| KBP 1 | 43.5 | 31.0 | 1A | 1B | 1C |
| KBP 2 | 42.5 | 30.0 | 2A | 2B | 2C |
| KBP 3 | 41.5 | 29.0 | 3A | 3B | 3C |
| Standard: | Optional: |
| silver plated | gold plated |
| back bore A2 | perspex |
| shank 12.5 mm | shank 12.9 mm |
JK Euphonium
Euphonium "Export-Line Exclusive"
| No. | rim mm Ø | cup mm Ø | very deep | deep | medium |
| bore mm | |||||
| 7.2 | 6.8 | 6.6 | |||
| EU 3 | 40.5 | 27.00 | 3A | 3B | 3C |
| EU 4 | 40.0 | 26.50 | 4A | 4B | 4C |
| EU 5 | 40.0 | 26.00 | 5A | 5B | 5C |
| EU 6 | 39.0 | 25.75 | 6A | 6B | 6C |
| EU 7 | 39.0 | 25.50 | 7A | 7B | 7C |
| EU 8 | 39.0 | 25.25 | 8A | 8B | 8C |
| EU 9 | 38.0 | 25.00 | 9A | 9B | 9C |
| Standard: | Optional: |
| silver plated |
gold plated |
| small shank: 10.8 mm | bottom part silver plated with plastic rim |
| back bore A2 |
bottom part silver plated with metal rim |
| perspex | |
| B-shank: 11.5 mm |
|
| L-shank: 12.5 mm |
Euphonium-Mouthpiece „Exclusive“ Michael Müller
| Nr. | rim mm Ø | cup mm Ø | very deep |
| bore 7.4 mm | |||
| EU 6A | 39.00 | 25.75 | 6A |
JK Tenor Horn
Tenor Horn "Exclusive"
| No. | rim mm Ø | cup mm Ø | deep | medium | medium | shallow |
| bore mm | ||||||
| 6.0 | 5.8 | 5.4 | 5.0 | |||
| TH 5 | 40.0 | 26.00 | 5D | 5E | ||
| TH 6 | 39.0 | 25.75 | 6D | 6E | ||
| TH 7 | 39.0 | 25.50 | 7D | 7E | ||
| TH 8 | 39.0 | 25.25 | 8D | 8E | ||
| TH 9 | 38.0 | 25.00 | 9D | 9E | ||
| TH 10 | 38.0 | 24.50 | 10D | 10E | ||
| TH 12 | 38.0 | 24.00 | 12D | 12E | ||
| TH 13 | 37.0 | 23.50 | 13E | 13F | 13G | |
| TH 14 | 36.0 | 23.00 | 14E | 14F | 14G | |
| TH 15 | 36.0 | 22.50 | 15E | 15F | 15G |
| Standard: | Optional: |
| silver plated | gold plated |
| back bore A2 | bottom part silver plated with plastic rim |
| shank: 10.8 mm | bottom part silver plated with metal rim |
| perspex | |
| shank: 11.5 mm |
Tenor horn-Mouthpiece „Exclusive“ Michael Müller
| Nr. | rim mm Ø | cup mm Ø | deep |
| bore 6.0 mm | |||
| TH 9D-B | 38.00 | 25.00 | 9D |
JK Alto Horn
Alto Horn "Exclusive"
| No. | rim mm Ø | cup mm Ø | very deep | deep | medium | shallow |
| bore mm | ||||||
| 4.8 | 4.6 | 4.4 | 4.2 | |||
| A 1 | 30.0 | 19.0 | 1A | 1B | 1C | 1D |
| A 2 | 30.0 | 18.5 | 2A | 2B | 2C | 2D |
| A 3 | 29.0 | 18.0 | 3A | 3B | 3C | 3D |
| Standard: | Optional: |
| silver plated | gold plated |
| back bore: A2 | bottom part silver plated with plastic rim |
| shank: 10.0 mm | bottom part silver plated with metal rim |
| perspex |
Alto Horn "USA-Line"
| No. | 6 | 12 |
| rim mm Ø | 29.2 | 29.2 |
| cup mm Ø | 18.5 | 18.0 |
| bore mm | 4.7 | 4.7 |
| Standard: | Optional: |
| silver plated | gold plated |
| shank: 10.0 mm | bottom part silver plated with plastic rim |
| perspex |
JK Tuba
Tuba "Exclusive"
| No. | rim mm Ø | cup mm Ø | extremely deep | very deep | deep | medium | shallow | shallow |
| bore mm | ||||||||
| 8.6 | 8.4 | 8.2 | 8.0 | 7.8 | 7.6 | |||
| T 1 | 50.0 | 34.0 | 1AA | 1A | 1B | 1C | 1D | 1E |
| T 2 | 50.0 | 33.5 | 2AA | 2A | 2B | 2C | 2D | 2E |
| T 3 | 49.0 | 33.0 | 3AA | 3A | 3B | 3C | 3D | 3E |
| T 4 | 49.0 | 32.5 | 4AA | 4A | 4B | 4C | 4D | 4E |
| T 5 | 48.0 | 32.0 | 5AA | 5A | 5B | 5C | 5D | 5E |
| T 6 | 48.0 | 31.5 | 6AA | 6A | 6B | 6C | 6D | 6E |
| T 7 | 47.0 | 31.0 | 7A | 7B | 7C | 7D | 7E | |
| T 8 | 47.0 | 30.5 | 8B | 8C | 8D | 8E | ||
| T 9 | 46.0 | 30.0 | 9C | 9D | 9E |
| Standard: | Optional: |
| silver plated | gold plated |
| back bore: A2 | bottom part silver plated with plastic rim |
| shank: 13.5 mm | bottom part silver plated with metal rim |
| perspex | |
| shank: 12.5 mm |
Tuba Classic "Exclusive"
| No. | rim mm Ø | cup mm Ø | extremely deep | very deep | deep | medium | shallow |
| bore mm | |||||||
| 8.6 | 8.4 | 8.2 | 8.0 | 7.8 | |||
| T 1 | 50.0 | 34.0 | 1AA | 1A | 1B | 1C | 1D |
| T 2 | 50.0 | 33.5 | 2AA | 2A | 2B | 2C | 2D |
| T 3 | 49.0 | 33.0 | 3AA | 3A | 3B | 3C | 3D |
| T 4 | 49.0 | 32.5 | 4AA | 4A | 4B | 4C | 4D |
| T 5 | 48.0 | 32.0 | 5AA | 5A | 5B | 5C | 5D |
| T 6 | 48.0 | 31.5 | 6AA | 6A | 6B | 6C | 6D |
| Standard: | Optional: |
| silver plated | gold plated |
| back bore: A2 | bottom part silver plated with plastic rim |
| shank: 13.5 mm | bottom part silver plated with metal rim |
| perspex | |
| shank: 12.5 mm |
The new conical shaped cups of the Exclusive Classic Tuba Line have been developed from scratch.
Their large, well-balanced sound and excellent response across all registers is not just a sonic extensionof the existing Exclusive series with its apple shaped cup design. The rim contours have been retained in the new Exclusive Classic line, making it easy to switch between the two mouthpiece series.
Tuba / Sousaphon "Exclusive" P. Laib
| Instrument | No. | rim mm Ø | cup mm Ø | bore |
| very deep | ||||
| Tuba Exclusive 3AA P. Laib | T3 | 49.0 | 33.0 | 8.9 / 3 AA |
| JK Sousaphon 18 P.Laib | 18 | 47.3 | 31.8 | 8.4 |
Matthias Raggl
(state theater Nuremberg)
"The new conical cup shape of the Classic models avoids air congestion, offers easy and safe response in all registers. Especially the possibility of a gentle and even connection of the individual notes in the Legato convinced me."
Prof. Hans Nickel
(WDR Sinfonieorchester)
"I‘ve known the JK Exclusive Tuba mouthpieces for a long time, but the new Classic Series is a real alternative. On the F as on the BBb and CC tuba, the new cup design conveys a rich, clear tone with excellent response across all registers. Especially the articulation in the depth is absolutely trouble-free. The Classic models are really recommended!"
Manfred Häberlein
(Harmonic Brass)
"I tested the new Exclusive Classic mouthpiece intensively and during the development phase I passed on my opinion and impressions to the specialists of JK. The now finished product is sensational. Finally, I have a mouthpiece that I can use in very delicate passages without a loss of sound. It centers excellently and thus ensures a precise and clear attack."
Tuba "USA-Line"
Bore 8.6 mm
| No. | 18 | 24 W | 24 AW | 25 |
| rim mm | 47.3 | 49.6 | 49.6 | 46.7 |
| cup mm | 31.8 | 31.5 | 31.5 | 31.0 |
| Standard: | Optional: |
| silver plated | gold plated |
| shank: 13.5 mm | bottom part silver plated with plastic rim |
| perspex | |
| shank: 12.5 mm |
Cologne models Mouthpieces
(Image: Mouthpieces Trombone/Tuba cologne model)
Cologne model Alto Horn in French horn form
| No. | rim mm Ø | cup mm Ø | cup depth | bore mm |
| 210-1 | 31 | 18.4 | shallow | 4.2 |
| 210-2 | 31 | 18.6 | medium | 4.4 |
| 210-3 | 31 | 18.8 | deep | 4.6 |
| 210-4 | 31 | 19.0 | very deep | 4.8 |
| Standard: | Optional: |
| silver plated | gold plated |
| bottom part silver plated with plastic rim | |
| perspex |
Cologne model Tenor horn
| No. | rim mm Ø | cup mm Ø | cup depth | bore mm |
| 211-1 | 36 | 22.0 | shallow | 4.4 |
| 211-2 | 36 | 22.2 | medium | 4.6 |
| 211-3 | 36 | 22.5 | deep | 4.8 |
| 211-4 | 36 | 22.8 | very deep | 5.0 |
| 211-5 | 36 | 23.0 | very deep | 5.2 |
| Standard: | Optional: |
| silver plated | gold plated |
| bottom part silver plated with plastic rim | |
| perspex |
Cologne model Jazz Trombone
| No. | rim mm Ø | cup mm Ø | cup depth | bore mm |
| 212-1 | 38 | 24.0 | very shallow | 5.2 |
| 212-2 | 38 | 24.2 | shallow | 5.4 |
| 212-3 | 38 | 24.5 | medium | 5.6 |
| 212-4 | 38 | 24.8 | deep | 5.8 |
| Standard: | Optional: |
| silver plated | gold plated |
| bottom part silver plated with plastic rim | |
| perspex |
Cologne model Bass Trombone
| No. | rim mm Ø | cup mm Ø | cup depth | bore mm |
| 215-1 | 41 | 25.5 | shallow | 6.8 |
| 215-2 | 41 | 26.0 | medium | 7.0 |
| 215-3 | 41 | 26.5 | deep | 7.2 |
| 215-4 | 41 | 27.0 | very deep | 7.4 |
| Standard: | Optional: |
| silver plated | gold plated |
| bottom part silver plated with plastic rim | |
| perspex |
Cologne model Bariton
| No. | rim mm Ø | cup mm Ø | cup depth | bore mm |
| 214-1 | 40 | 25.0 | very shallow | 5.6 |
| 214-2 | 40 | 25.2 | shallow | 5.8 |
| 214-3 | 40 | 25.5 | medium | 6.0 |
| 214-4 | 40 | 25.8 | deep | 6.2 |
| 214-5 | 40 | 26.0 | very deep | 6.4 |
| Standard: | Optional: |
| silver plated | gold plated |
| bottom part silver plated with plastic rim | |
| perspex |
Cologne model F-Eb-Tuba
| No. | rim mm Ø | cup mm Ø | cup depth | bore mm |
| 216-1 | 46 | 29.0 | very shallow | 6.6 |
| 216-2 | 46 | 29.2 | shallow | 6.8 |
| 216-3 | 46 | 29.5 | deep | 7.0 |
| 216-4 | 46 | 29.8 | very deep | 7.2 |
| Standard: | Optional: |
| silver plated | gold plated |
| bottom part silver plated with plastic rim | |
| perspex |
Cologne model Bb-Tuba
| No. | rim mm Ø | cup mm Ø | cup depth | bore mm |
| 217-1 | 48 | 30.2 | very shallow | 7.2 |
| 217-2 | 48 | 30.5 | shallow | 7.4 |
| 217-3 | 48 | 30.7 | medium | 7.6 |
| 217-4 | 48 | 31.0 | deep | 7.8 |
| 218-1 | 49 | 31.2 | shallow | 7.4 |
| 218-2 | 49 | 31.5 | medium | 7.6 |
| 218-3 | 49 | 31.8 | deep | 7.8 |
| 218-4 | 49 | 32.0 | very deep | 8.0 |
| Standard: | Optional: |
| silver plated | gold plated |
| bottom part silver plated with plastic rim | |
| perspex |
Mouthpieces / Trombone, Euphonium, Tenor Horn, Tuba & Alto Horn