Selecting the diaphragm material is critical as it defines the sound signature. Silk dome tweeters are preferred for home audio and high-fidelity systems due to their smooth, natural frequency response and internal damping. For automotive or outdoor applications where high output and durability are needed, metal domes (Aluminum or Titanium) offer superior transient response and high-frequency extension, though they may require a steep crossover to manage 'ringing' at the breakup point. For budget-conscious projects, PEI or Mylar domes provide a cost-effective, moisture-resistant solution.