Bob Reeves 43SV692s Trumpet Mouthpiece 43/64" Semi-round with a soft bite. 43 rim is functionally similar to Bach 2 3/4 C, 3, 3E, 3F, and Schilke 16 rims.
Cup: SV - 0.205" proprietary cup depth Very shallow conical vee shaped cup
Backbore: 692s A very efficient backbore. It causes the mouthpiece to be physically shorter than a conventional mouthpiece. When combined with shallow cups, it makes the upper register very efficient. When combined with very deep cups (like a "B" cup) it allows the darkness in sound of the cup while continuing to assist in the upper register.
Shank: #4 Standard - other sizes available.
Popular Uses: Lead trumpet, commercial, amplified. Similar to 43/ES 692s except with a conical shaped cup. Similar to Shew Lead.