(57) A cylindrical annular body (1), rigidly engaged with the magnet (2)-basket (2') back
part of any type of loudspeaker (7) connects to fixed support structures (110) by
means of slanted or spiral flanges (3), obtained on its external peripheral part,
which gets in touch and bayonet-fit in as many walls (8) obtained on edge (33) of
dedicated holes (5), obtained on said structures.
Said body (1) may be coupled, in integral form, to a continuous peripheral front band
(23) on which the front edge (28) of the diffusion cones (29) of said loudspeakers
engages. Band (23) comprises a back free edge (26) which pressure engages with the
peripheral surface (27) adjoining holes (5), connecting the quick connection and structure
(110).
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