The Jantzen JA2806 is a state-of-the-art 1-1/8" soft dome tweeter featuring ferrofluid in the magnet gap for increased power handling, a heavy aluminum faceplate, a six hole vented pole plate, and ferro. A specially designed non-resonant rear chamber provides a small transmission line for absorbing rear energy and facilitates low-order crossover network. A carefully designed and well crafted tweeter. Specifications: *Power handling: 100 watts RMS/150 watts max *Voice coil diameter: 1" *Impedance: 6 ohms *Re: 4.9 ohms *Frequency response: 2,000-20,000 Hz *Fs: 700 Hz *SPL: 91 dB 2.8V/1m *Dimensions: Overall diameter: 4-3/8", Cutout: 3-3/8", Mounting depth: 1-5/8". 1-1/8" soft dome Damped rear chamber 100 watts RMS power handling Well designed and crafted