how to make full-range loudspeaker in Russia / diy speaker

how to make full-range loudspeaker in Russia by NOEMA This 200 W 12“ low-frequency speaker is a perfect component for professional and tour multipurpose loudspeaker systems. As its basic advantage, this broadband loudspeaker is capable of reproducing a great portion of audible-frequency spectrum that allows spectral and spatial discontinuity elimination impossible in multiband systems. It is equally important that the speaker does not require any large enclosure that ensures high mobility and convenience of