To overcome the directional limitations of in-wall/in-ceiling speakers, Haase, Burkhardt and Francisco invented and patented the AIM speaker technology fully represented in SpeakerCraft's directional in-ceiling and in-wall loudspeakers.
SpeakerCraft invented the WavePlane, a baffle that isolates the tweeter from the woofer in a coaxial ceiling speaker, which results in improved high frequency dispersion and fidelity [REF].