AAW is known for our exquisite hybrid drive technology, A3H is our latest effort in such ideology of combining the best traits out of dynamic and balanced armature drivers. Instead of creating high order RC crossover network, which usually causes chaotic phase shift and scrambled arrival timing, AAW uses a complete new approach called TrueXrossTM to solve the classic coherence issue in hybrid earphones. The dynamic driver is individually tuned diaphragm wise and by further utilizing a physical low pass filter, it is to only function in minimal overlapping frequency range as opposed to the balanced armature driver. Coupled with delicate positional arrangement and the new stainless steel acoustic bore design, AAW is able to achieve improved coherence, minimized phase shift and optimized arrival timing of music signal. A3H is tuned with a vigorous and lively sound signature in mind, it offers natural sub bass which you will never find in a full balanced armature setup. The dedicated super high balanced armature drivers offer crystal clear details in the vocal and treble range. The treble extension is well controlled to provide a non-fatiguing listening experience. The binaural sound-stage is reproduced as realistic as a pair of full sized headphone.