Boston Acoustics 360
The Boston Acoustics 360 is an in-wall (or in-ceiling) speaker from the company's Designer Series, introduced in the mid-1980s. It mounts flush with the surface and takes up no shelf or floor space. A period ad in HiFI-Stereo (January 1987, p.60) said it lets the walls "surround you with music," and noted the tweeter was a new version of the one-inch dome used in Boston's finest home systems.
The grille and trim plate were matte white and could be painted to match the room. The external trim plate measured 12 x 8 inches and was 5/8 inch deep. The woofer needed only 3¼ inches of depth behind the wall surface. Installation used a flexible flange and six mounting screws, and the speaker could go in vertically or horizontally.
A test report in HiFI-Stereo (September 1988, p.58) measured the 360's frequency response at ±3 dB from 55 to 20,000 Hz. Group-delay variation stayed under ±0.2 millisecond from about 500 to 23,000 Hz. The review noted that the woofer response was flat within 4 dB from 62 to 1,000 Hz and spliced cleanly to the in-room curve.
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