The T29AF001 is a High End, High Effi ciency 29mm aluminum/magnesium alloy dome tweeter. An optimally shaped dome and a wide SONOMEX surround, both maufactured by SEAS, ensure excellent performance and consistency. A powerful magnet system based on an axially magnetized NdFeB ring magnet provides effi cient ventilation and damping of the cavity behind the dome. Low viscosity magnetic fl uid provides excellent cooling while maintaining a low resonance frequency. A generously underhung voice coil with fl exible lead-out wires ensures low distortion and allow this driver to be used with low crossover frequencies. A 6mm precision machined aluminum front plate with moderate horn loading characteristic combines linear frequency response with high effi ciency. The front plate is Nextel painted to obtain a durable and attractive fi nish. A substantial injection moulded rear chamber made from zinc eliminates unwanted chamber wall resonances and conducts heat away from the magnet system.