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Bach Trumpet Mouthpiece Comparisons

Bach - Wedge Trumpet Mouthpiece Comparisons

  • Bach mouthpieces are inconsistent between samples of the same size
  • Many players using large sizes (1-1.25 Bach rim) do very well downsizing to a Wedge 67 rim with no loss of sound or flexibility
  • Cup depths and rim sizes do not always follow a logical sequence (5C and 7C are deeper than a 3C)
  • Depth measured at .04 inches into the cup
 Bach Wedge

ID in inches (mm)

Comments
 1 69D

.690

(17.5)

 
 1X 67D .680 The sharp bite on the 1X reduces the effective rim ID. 
 1B 69RT

.690 

(17.5)

 
 1C 68MDV

.680

(17.3)

 
 1D 69M

.690 

(17.5)

 
 1E 68S

.680 

(17.3)

 
 1.25C 68MDV or 67MDV

.680

(17.3)

The 1.25C ID is between the 67 and 68 rim. Consider the 67MDV if you want better endurance and range. Many players do well on a slightly smaller Wedge.  
 1.5B 68D

.680

(17.3)

 
 1.5C 67MDV

.670

(17)

 
 2 66D

.660

(16.8)

Sharp bite of Bach 2 reduces rim diameter
 2C 665MD

.665

(16.9)

 
 2.5C 665MDV

.665

(16.9)

 
 2.75C 665D

.665

(16.9

 
 3 665RT

.665

(16.9)

 
 3B 665D

.665

(16.9)

 
 3C

665MV

Pierobon C (1)

Giuffredi C (1)

Chuck Findley MV (2)

.665

(16.9)

(1) Deeper than 3C
(2) Slightly smaller ID than 3C
 3CW 67RT

.670

(17)

 
 3D

66S

66LV

.660

(16.8)

 66LV has better low register and less resistance 
 3E 66ES

.660

(16.8)

 
 3F 66ES

.660

(16.8)

 
 5A 66RT

.660

(16.8 

 
 5B 66D

.660

(16.8)

 
 5C 66MDV

.660

(16.8)

 
 6 66D

.660

(16.8)

 
 6B 66D

.660

(16.8)

 
 6C 66D

.660

(16.8)

 

 
 7 66RT, 65RT

.660

(16.8)

Between 66 and 65 rim

Consider smaller diameter for better range and endurance

 7B 66D, 65D

.660

(16.8)

.650

(16.5)

Between 66 and 65 rim

Consider smaller diameter for better range and endurance

 7C 66MDV, 65D

.660

(16.8)

.65

(16.5)

Between 66 and 65 rim

Consider smaller diameter for better range and endurance

 7D 65MD

.650

(16.5)

 
 7E 65M

.650

(16.5)

 
 7EW 65M

.650

(16.5)

 
 10.5C 65MDV, 64MDV

.650

(16.5)

.640

(16.3)

Between 65 and 64 rim

Consider smaller diameter for better range and endurance