Here is some purchasing guide for cupronickel sax:

(1) Material

The metal material used to make cupronickel sax must have a certain strength and thickness. When purchasing, be sure to pay attention to whether the tube body has defects such as unevenness and collapse, and the cupronickel sax that will appear indented when gently pressed with your fingers should also be carefully selected.

(2) painting

Observe whether the coating of the cupronickel sax tube body is bright and smooth. The tube body is silver-plated and the bell mouth is gold-plated. Followed by yellow and nickel plating.

(3) Process

Check whether the welding part of the cupronickel sax is firm, and there should be no creases in the bending part. The large elbow should be U-shaped, and the upper curved neck should be about 60 degrees. The upper and lower pipe joints of cupronickel sax should be tight, tight, and free of air leakage.

(4) Sound pad

The sound hole cover of the cupronickel sax should not leak air. When checking, you can peep into the tube from the curved neck socket, and irradiate the sound hole around the sound hole with a flashlight or face the sun to observe whether there is shimmering light.

(5) Button

The cupronickel sax keys should be flexible and flexible. When checking, press the keys one by one quickly by hand. The keys of the cupronickel sax are required to be flexible but not loose, the cover of the sound hole should be closed accurately, and there should be no metal bumping noise during finger movement.

Through the above introduction and analysis of cupronickel sax, hope it helps you.