B Common combined coaxial speaker: the structure is a full-range speaker composed of connecting rods for ordinary non-hi-fi high and low speakers, which is characterized by large distortion and complicated assembly.
C. High-pitched non-fidelity coaxial speaker: It uses a piezoelectric bee business card to place on the center post of T-shaped iron of the bass speaker, resulting in high-pitched sound, which has great distortion except insufficient sound pressure.
D. High-bass coaxial speaker: The tweeter has an independent voice coil and vibrator, and the bass vibrator is suspended to form high-pitched radiation, resulting in serious modulation distortion.
E there are some products on the market that steal KEF's patented technology. It looks very similar, but the sound quality is very poor, which is very deceptive to consumers.
F, how to distinguish true and false coaxial
By mastering the technical and structural knowledge of coaxial, we can identify whether it meets the performance requirements of coaxial.
By identifying the sound characteristics of coaxial speakers, the positioning of coaxial prominent music characteristics is accurate and analytical.
Some speakers also adopt coaxial structure, but the high and low speakers are placed in front of each other. Unlike true coaxial speakers, they are not only coaxial, but also on the diaphragm surface, so they cannot be regarded as true coaxial speakers. In addition, there is a structure of sticking a small cone on the woofer, which is not really coaxial. A, in terms of performance, the radiated sound has high phase fidelity, which can realize standard point sound source playback (sounds are all expressed in the form of point sound sources in nature).
B. Auditively, the music played back by coaxial speakers has accurate sound image positioning, high music resolution and grand sound field performance. The bass is realistic, cohesive, high in energy density and good in transient performance. The alto voice is full and sweet; The treble is crystal clear, delicate and transparent.