How we sculpt acoustic overtones through controlled gas nitriding and stress relief aging.
Shells are baked at 560°C in pure nitrogen kilns, forming an ultra-dense iron nitride surface layer that provides lifelong rust immunity and percussive brilliance.
Every tone field features precise dual-axis hammer sculpting: the longitudinal axis tuned to the octave ($2f$) and the transverse axis to the compound fifth ($3f$).
Finished instruments rest for 14 days in humidity chambers to allow internal metal tensions to equilibrate before final master verification.
| Characteristic | Nitrided Low Carbon Steel | Ember Stainless Steel |
|---|---|---|
| Sustain Character | Medium (3–5s) • Crisp note separation | Long (7–10s) • Cathedral bloom |
| Ideal Playstyle | Fast rhythmic grooves, percussive busking | Slow ambient, yoga, meditation |
| Corrosion Resistance | High (Needs occasional Phoenix oil) | 100% Rustproof & Sweat Immune |