[. . . ] It is a trapezoidal enclosure identical in height, appearance and suspension to the FRi/FRi+ full-range systems. [. . . ] These professional fixed install speakers deliver a broad range of performance options including multiple rotatable horn patterns, matching subwoofer, full-range systems with easily switchable passive or biamp operation, and EV's world renowned transducer technology for response that is smooth and linear. The FRi/ FRi+ Series is an economical and flexible solution for the most demanding installations. Same height full-range and sub-woofer systems allow the installer to construct arrays covering the most demanding acoustical environments while maintaining an aesthetic and uniform installation. Frequency: Recommended Crossover 80 Hz Frequency: Connectors: Barrier Strips Enclosure Material: 13-ply Birch Plywood Suspension: 16 x 3/8" Threaded Points Grille: 16 GA Steel Environmental Spec: IEC 529 IP24 Dim (H x W x D): 31. 0" x 28. 3" x 26. 0" (787 x 719 x 660 mm) Net Weight (each): 100 lbs (45. 5 kg) Shipping Weight: 105 lbs (47. 7 kg) 1 Half Space measurement. Frequency Response (Full/Half Space) : Impedance: Block Diagram: Beamwidth: Dimension Drawings: Directivity: PerformanceMatch: Top · · · · · · · · · · · · · Unfinished Black White FRi+122/64 - 301217-000, 301217-001, 301217-002 FRi+122/66 - 301219-000, 301219-001, 301219-002 FRi+122/94 - 301218-000, 301218-001, 301218-002 FRi+152/64 - 301210-000, 301210-001, 301210-002 FRi+152/66 - 301212-000, 301212-001, 301212-002 FRi+152/94 - 301216-000, 301216-001, 301216-002 FRi-122/64 - 1152-3362, 1152-3337, 1152-3359 FRi-122/85 - 1152-3392, 1152-3384, 1152-3385 FRi-152/64 - 1152-3363, 1152-3336, 1152-3360 FRi-152/85 - 1152-3393, 1152-3386, 1152-3387 FRi+181SPartNumbers: FRi+181S (Unfinished) - 1152-3364 FRi+181S (Black) - 1152-3340 FRi+181S (White) - 1152-3361 Front Side U. S. A. For customer orders, contact Customer Service at: 800/392-3497 Fax: 800/955-6831 Europe, Africa, and Middle East only. For customer orders, contact Customer Service at: + 49 9421-706 0 Fax: + 49 9421-706 265 Other International locations. [. . . ] For customer orders, contact Customer Service at: + 49 9421-706 0 Fax: + 49 9421-706 265 Other International locations. [. . . ]