FRS series is a built-in two-way high-reduction speaker system. FRS-6 uses 6" (170MM) caliber ferrite 25MM voice coil unit, 3" (75mm) dual ferrite tweeter, FRS-8 uses 8" (200 MM) diameter ferrite 38MM voice coil unit, 3"(75mm) dual ferrite tweeter, FRS-10 uses 10"(260 mm) ferrite 35 core woofer, 2*3"(75mm) dual Ferrite tweeter; Polygonal box structure, with customized unit TS parameters to design low-distortion low-frequency response state, front-oriented design makes the low frequency natural and real, the human voice is naturally full in the middle and low frequency, the middle and high frequency is round and bright and smooth, the performance type sound quality design is high in reproduction, and the human voice is in The mark is high in realism, rich in magnetism, and natural and smooth voice;