Model No.

Rim Inner

Diameter(mm)

Throat

(mm)

Characteristics

SL-45AS

24.26

5.85

Small inner rim diameter with an extremely shallow cup for brilliant tone. Easy high notes. Ideal for bass trumpet.

SL-45C2S

24.26

5.85

Small inner rim diameter with a clean bite. Easy playability with a bright tone. Popular with studio players.

SL-46BS

24.58

5.85

Shallower cup than the 46C2. Outstanding high register. Fairly sharp shoulder. Brilliant tone.

SL-46C2S

24.59

5.85

Relatively large inner rim diameter. A good choice for advanced jazz players. Ideal for demanding professional studio applications.

SL-47S

24.98

5.85

Outstanding endurance. Rich tone suitable for ensembles and orchestras.

SL-48AS

25.25

5.32

The 48 rim combined with a very shallow cup. For alto trombones. Bright tone with good volume. Ideal for baroque compositions.

SL-48DS

25.25

6.62

Same rim as the 48 with a relatively deep cup. Rich lower register with a rich, soft tone. Also ideal for euphonium.

SL-48S

25.25

6.62

Well-balanced rim and cup for all-around playing. Refined design meets the needs of professional players.

SL-51BS

25.23

6.92

The 51 rim with a relatively shallow cup. Powerful sound. Popular with ensemble and orchestra euphonium players.

SL-51S

25.23

6.92

Relatively large inner rim diameter with large cup volume for a dark sound. Standard euphonium model with a beautiful rich tone.

SL-51C4S

25.23

6.92

Shallower cup than the 51. Plenty of volume and power. Solid tone throughout the instrument's range. Ideal for symphony orchestra playing.

EP-51DS

25.24

7.11

An even deeper cup than the 51 for a heavy, rich tone. Specifically for euphonium. Ideal for advanced players who prefer a dark sound.

SL-52S

25.65

7.11

Larger inner rim diameter and cup than the 51. Heavy tone. For advanced players.