MTX Audio TX6 Thunder Axe Component Speakers - Set of 4 Extended low frequency reproduction for bigger, fuller sound. 25mm soft dome tweeter can be mounted anywhere to improve imaging and exceed expectations, with the ability to clearly recreate the crispest highs. Concave cone design for improved off-axis response. 2-Way crossover and adjustable tweeter level. Tweeter can be mounted in flush or surface mount adaptor and swivels within adaptor for superior imaging.