Underpart SONICA

Classification system

1: Junction with the rim (underparts and rims must have the same number of connection)

C: Shape of the cup

b: Throat

L: Backbore

2: GAP


Piston trumpet

Junction 1

You can screw rim with its junction number 1

Possible combinations

JunctionCupThroatBackboreGap
1 B a S – M – L – XL 1 – 2 – 3 – 4
1 B b S – M – L – XL 1 – 2 – 3 – 4
1 B c S – M – L – XL 1 – 2 – 3 – 4
1 B d L – XL 1 – 2 – 3 – 4
1 C a S – M – L – XL 1 – 2 – 3 – 4
1 C b S – M – L – XL 1 – 2 – 3 – 4
1 C c S – M – L – XL 1 – 2 – 3 – 4
1 C d L – XL 1 – 2 – 3 – 4
1 D a L – XL 1 – 2 – 3 – 4
1 D b L – XL 1 – 2 – 3 – 4

Fori

a = 3.70 mm

b = 3.75 mm

c = 3.80 mm

d = 3.85 mm

Backbore

S:  Medium backbore. Compact and brilliant tone.

M: Medium-large backbore. Compared to S backbore is more open in the initial part. Fuller sound.

L: Large backbore. Big symphonic sound of great volume and projection.

XL: Extra-large backbore. Large sound of enormous volume. Intonation-wise it helps with small trumpets (D, E-flat, E, F).

Cup

Tazze B, C e D
B Cup (in green):

Deep cup with a dark and full-bodied tone.

C Cup (in black):

Medium cup with a compact tone all over the range.

D Cup (in brown):

Medium-shallow cup, brilliant but still compact tone.

Junction 2

You can screw rim with its junction number 2

JunctionCupThroatBackboreGAP
2 B a S – M – L – XL 1 – 2 – 3 – 4
2 B b S – M – L – XL 1 – 2 – 3 – 4
2 B c S – M – L – XL 1 – 2 – 3 – 4
2 B d L – XL 1 – 2 – 3 – 4
2 C a S – M – L – XL 1 – 2 – 3 – 4
2 C b S – M – L – XL 1 – 2 – 3 – 4
2 C c S – M – L – XL 1 – 2 – 3 – 4
2 C d L – XL 1 – 2 – 3 – 4
2 D aa L – XL – XXL 1 – 2 – 3 – 4
2 D a L – XL – XXL 1 – 2 – 3 – 4
2 E aa XL – XXL 1 – 2 – 3 – 4
2 E a XL – XXL 1 – 2 – 3 – 4

Fori

aa = 3.65 mm

a = 3.70 mm

b = 3.75 mm

c = 3.80 mm

d = 3.85 mm

Penne (retroforo)

S:  Medium backbore. Compact and brilliant tone.

M: Medium-large backbore. Compared to S backbore is more open in the initial part. Fuller sound.

L: Large backbore. Big symphonic sound of great volume and projection.

XL: Extra-large backbore. Large sound of enormous volume. Intonation-wise it helps with small trumpets (D, E-flat, E, F).

XXL: extra-extra-large backbore. Suitable for piccolo trumpet. Easier upper range.

Cup

Tazze B, C, D, E
B Cup (in green):

Deep cup with a dark and full-bodied tone.

C Cup (in black):

Medium cup with a compact tone all over the range.

D Cup (in brown):

Medium-shallow cup, brilliant but still compact tone.

E Cup (in pink):

Shallow cup, brillant and sparky tone. Well-suited for piccolo trumpet.

Junction 3

You can screw rim with its junction number 3.

RaccordoTazzaForoPennaGap
3 D aa L – XL – XXL 1 – 2 – 3 – 4
3 D a L – XL – XXL 1 – 2 – 3 – 4
3 E aa XL – XXL 1 – 2 – 3 – 4
3 E a XL – XXL 1 – 2 – 3 – 4
3 F aa XXL 1 – 2 – 3 – 4
3 F a XXL 1 – 2 – 3 – 4

Throat

aa = 3.65 mm

a = 3.70 mm

Backbore

L: Large backbore. Big symphonic sound of great volume and projection.

XL: Extra-large backbore. Large sound of enormous volume. Intonation-wise it helps with small trumpets (D, E-flat, E, F).

XXL: extra-extra-large backbore. Suitable for piccolo trumpet. Easier upper range.

Cups

Cups D, E, F
D Cup:

Medium-shallow cup, brilliant but still compact tone.

E Cup:

Shallow cup, brillant and sparky tone. Well-suited for piccolo trumpet.

F Cup:

Very shallow cup, suitable for the highest baroque repertoire. 


P – Piccolo trumpet with cornet shank

The cups’ design is the same of the piston trumpet’s ones.

JunctionTazzaForoPennaGap
2 PD aa – a XXL 1 – 2 – 3 – 4
2 PE aa – a XXL 1 – 2 – 3 – 4
3 PD aa – a XXL 1 – 2 – 3 – 4
3 PE aa – a XXL 1 – 2 – 3 – 4
3 PF aa – a XXL 1 – 2 – 3 – 4

Fori

aa = 3.65 mm

a = 3.70 mm

Backbore

XXL: extra-extra-large backbore. Suitable for piccolo trumpet. Easier upper range.

Cup

Cups D, E e F
D Cup:

Medium-shallow cup, brilliant but still compact tone.

E Cup:

Shallow cup, brillant and sparky tone. Well-suited for piccolo trumpet.

F Cup:

Very shallow cup, suitable for the highest baroque repertoire. 


R – Rotary trumpet

You can screw rim with its junction number 1.

The cups’ and backbores’ design does not match the piston trumpet’s ones.

Junction Cup Throat Backbore Gap
1 RA c – d – e L – XL – XXL 2 – 3 – 4
1 RB c – d – e L – XL – XXL 2 – 3 – 4
1 RC c – d – e L – XL – XXL 2 – 3 – 4

Throat

c = 3.80 mm

d = 3.85 mm

e = 3.90 mm

Backbore

L: Smallest backbore available for rotary trumpet. Compact and brilliant tone.

XL: Simphonic sound of great volume.

XXL: Very big and deep sound.

Cups

Cup shapes for rotary trumpet
A Cup (in red):

Deep cup. Dark and thick tone overall but flexible when a more brilliant sound is needed.

B Cup (in green):

Medium cup with a compact tone all over the range.

C Cup (in brown):

Slightly shallower than B cup. Brilliant tone.


K – Cornet

You can screw rim with its junction number 1 or 2.

The cups’ design does not match the piston and rotary trumpet’s ones.

JunctionCupThroat
1 – 2 KB q – u
1 – 2 KC g – m – q – u
1 – 2 KD g – m – q – u
1 KE g

Throat

g = 4.00 mm

m = 4.20 mm

q = 4.40 mm

u = 4.60 mm

Cups

Cup shapes for cornet
B Cup:

Deep cup, dark and full-bodied sound.

C Cup:

Medium cup with a compact tone all over the range.

D Cup:

Medium-shallow cup. Brilliant tone with great projection. Suitable for orchestral use.

E Cup:

Shallow cup. 


All throat measures

aa = 3.65mm
a = 3.7 mm
b = 3.75 mm
c = 3.80 mm
d = 3.85 mm
e = 3.90 mm
g = 4.00 mm
m = 4.20 mm
q = 4.40 mm
u = 4.60 mm

All backbores

For Piston trumpet

S:  Medium backbore. Compact and brilliant tone.

M: Medium-large backbore. Compared to S backbore is more open in the initial part. Fuller sound.

L: Large backbore. Big symphonic sound of great volume and projection.

XL: Extra-large backbore. Large sound of enormous volume. Intonation-wise it helps with small trumpets (D, E-flat, E, F).

XXL: extra-extra-large backbore. Suitable for piccolo trumpet. Easier upper range.

For rotary trumpet

L: Smallest backbore available for rotary trumpet. Compact and brilliant tone.

XL: Simphonic sound of great volume.

XXL: Very big and deep sound.

For piccolo

XXL: extra-extra-large backbore. Suitable for piccolo trumpet. Easier upper range.