Bach 6½AL (small shank) vs Giardinelli Sym. T
The Giardinelli Sym. T has a wider cup diameter, the Bach 6½AL (small shank) has a larger throat opening.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Bach 6½AL (small shank)
• Trombone
Throat diameter6.63 mm / 0.2610 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli Sym. T
• Trombone
Throat diameter6.40 mm / 0.2520 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Throat Diameter
The Bach 6½AL (small shank) has a wider throat (6.63 mm / 0.2610 in vs 6.40 mm / 0.2520 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.