Name: Schilke 13A4a
Brand: Schilke

Question 1

What is the difference between GR Technologies 64Z* and Schilke 13A4a?

Accepted Answer

The Schilke 13A4a has a wider cup diameter.

Question 2

Which has a bigger cup — GR Technologies 64Z* or Schilke 13A4a?

Accepted Answer

The Schilke 13A4a has a cup diameter of 16.76 mm / 0.6598 in compared to 16.26 mm / 0.6402 in on the GR Technologies 64Z* — a difference of 0.50 mm / 0.0197 in. A wider cup generally produces a fuller, darker tone but requires more air support.

Question 3

How does cup depth compare between GR Technologies 64Z* and Schilke 13A4a?

Accepted Answer

Both mouthpieces share a shallow cup depth, so the sound character from depth alone will be very similar.

Question 4

Which is better, GR Technologies 64Z* or Schilke 13A4a?

Accepted Answer

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.

GR Technologies 64Z* vs Schilke 13A4a

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare GR Technologies 64Z* with others

Compare Schilke 13A4a with others

Popular Trumpet comparisons

GR Technologies vs Schilke

Browse by specification