The 55 symph is a tenor trombone mouthpiece aimed at a player looking for a slightly smaller moutpiece. It has a Mid-deep cup with an inner rim ID of 25.50
The 60 Solo is the golden compromise between the 55 and the 67 tenor trombone mouthpiece of the Laskey Alessi Signature series. It has a Mid-Shallow cup with an inner rim ID of 26.00.
The 60 symph is a tenor trombone mouthpiece aimed at the symphony player looking for the perfect compromise. It has a Mid-deep cup with an inner rim ID of 26.00.