Hi Duke,Both compression drivers and cone drivers with neo magnets have become my drivers of choice. For compression drivers I have only heard BMS with neo magnets I like to listen to the sound better and they measure smoother/flatter and more bandwidth. For cone drivers The Eminence Deltalight series, BMS, 18 sound and BC drivers all offer neo and there are many others too. Another great feature is weight savings. Both in moving/handling and shipping.
Bill