Select the material Bell Brass, if you need a strong keynote with lots of sustain and sweeping overtones.

Also in the clean mode, the bridge has an excellent string separation.

The aluminum version has a very fast attack and a flat frequency response. This material is able to reproduce to wood-tone of the instrument pure and supplied heavy instruments with a significantly more airy sound.

Select the material when you need a balanced strong tone with additional fine treble (Twang).

Compared to Bell-Brass of the bass range is equally firm, but the high-middle come less "creamy" but neutral to light.