The Emperor Xa drumheads are the most durable Mylar ̈ heads in the world. TheyÕre made with two free-floating plys of 10 mil Mylar ̈ film with a 5 mil reverse black dot, which gives consistent focused warm tones which accounts for their popularity among many of todayÕs hardest hitting Rock drummers. The coated drumhead is slightly warmer than clear heads. TheyÕre known for their bright warm tones, resonance, and sustain. Coated heads are best known as batter and resonant heads warming up the sound of tom-toms and bass drums.