[. . . ] The voice-coil/diaphragm assembly is protected by a special anti-fungicide treatment and is easily accessible for cleaning by removal of the diecast reflector on the front of the speaker. The MM2 (MM2F) is self-draining and designed to withstand fungus, dust, salt spray, live steam, and gases. [. . . ] 82° @ 2 kHz (see Figure 2) Directivity Factor R (Q): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10. 25 @ 2 kHz Usable Low-Frequency Limit: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 Hz Construction: Voice-Coil Diameter: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 93 kg (0. 42 lb) with plates Magnet Material: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alnico V Flux Density: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 30 Tesla Dimensions: Diameter: MM2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15. 2 cm (6. 0 in. ) MM2F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18. 4 cm (7. 3 in. ) Depth: MM2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12. 8 cm (5. 0 in. ) MM2F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9. 5 cm (3. 8 in. ) Net Weight: MM2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 4 kg (5. 3 lb) MM2F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 8 kg (6. 0 lb) Shipping Weight: MM2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Kowloon, Hong Kong, Phone: 852-2351-3628, FAX: 852-2351-3329 2-5-601zumi, Suginami-ku, Tokyo, Japan 168, Phone:81-3-3325-7900, FAX:81-3-3325-7789 3015A Ubi Rd 1, 05-10, Kampong Ubi Industrial Estate, Singapore 408705, Phone: 65-746-8760, FAX: 65-746-1206 Av. Parque Chapultepec #66-201, Col. FAX: (52) 5358-5588 4, The Willows Centre, Wdlow Lane, Mitcham, Surrey CR4 41 UK, Phone: 44 181 640 9600, FAX: 44 181 646 7084 12000 Portland Ave South, Burnsville, MN 55337, Phone:952-887-7424, FAX: 952-887-9212 120011 Portland Ave South, Burnsville, MN 55337, Phone:952-887-7491, FAX: 952-887, 9212 Figure 3 MM2F Frequency Response (1 watt at 1 meter) www. electrovoice. com · Telex Communications, Inc. [. . . ]