25MMØ TEXTILE - 72MMØ FACE PLATE - NEODYMIUM MAGNET Copper cap on pole piece for reduced voice coil inductance and minimum phase shift. Fine weave soft fabric dome for smooth frequency response. Inherently shielded neodymium motor system. Internal pressure equalization and flow resistor for non-resonant coupling of cavities. Compact design. CCAW voice coil for low moving mass. Long life silver lead wires. Low resonance frequency. Copper cap on pole piece for reduced voice coil inductance and minimum phase shift Fine weave soft fabric dome for smooth frequency response Inherently shielded neodymium motor system Internal pressure equalization and flow resistor for non-resonant coupling of cavities Compact design CCAW voice coil for low moving mass Long life silver lead wires Low resonance frequency