Trombone mouthpieces
 
	
		
			
Model
			
Cup Dia
			
Throat
			
Rim
			
Comparison
		
		
			
MB3-ET  (Round Rim)
			
26.40mm
			
7.48mm
			
6.50mm
			
Bach 4G / SM3 / SM3U / 3AL
		
		
			
MB4-ET (Round Rim)
			
26.0mm
			
7.38mm
			
6.70mm
			
Bach 4G / SM4 / SM4U/ 4AL
		
		
			
MB5-ET  (Round Rim)
			
25.70mm
			
7.28mm
			
6.85mm
			
Bach 4.5G / SM5 / SM5U / 5AL
		
		
			
MB51 (Deep Cup)
			
25.50mm
			
7.20mm
			
6.95mm
			
Wick 6AL / Schilke 51D / PT4C
		
		
			
MB2GS “Fumeaux
			
27.00mm
			
6.80mm
			
7.20mm
			
 
		
		
			
MB4G-JP “Dragon”
			
26.00mm
			
7.40mm
			
6.89mm
			
4G
		
		
			
MB4.5G “Viper”
			
25.70mm
			
7.00mm
			
6.75mm
			
4.5G
		
		
			
MB5G “Raptor”
			
25.50mm
			
7.20mm
			
6.85mm
			
Bach 5G / Greg Black 5G / DE 5G
		
		
			
MB4.75G
			
25.60mm
			
7.30mm
			
6.75mm
			
 
		
		
			
MB6G
			
25.20mm
			
7.10mm
			
6.95mm
			
Bach 6G
		
		
			
MB6.75G
			
24.85mm
			
7.10mm
			
7.10mm