User manual ELECTRO-VOICE CX-1

[. . . ] Sound pressure level will be 104 dB (1 W/1 M) with an 800 to 5, 000 Hz pink noise signal applied. Dispersion shall be 82° for the MM2/MM2F. Outer housing shall be spun aluminum and center assembly of diecast aluminum. All metal parts of speaker shall be of anodized aluminum with baked-on acrylic for maximum protection. [. . . ] All metal parts of speaker shall be of anodized aluminum with baked-on acrylic for maximum protection. Mounting of the MM2 shall be by means of a swivel bracket capable of at least 90° vertical adjustment. Mounting of the MM2F shall be by means of six 7/32 inch diameter holes around a 6. 625 inch diameter circle on the flange. MM2 dimensions shall be 15. 2 cm (6. 0 in. ) in diameter, by 12. 8 cm (5. 0 in. ) deep. Net weight shall not exceed 2. 4 kg (5. 3 lb). MM2F dimensions shall be 18. 4 cm (7. 3 in. ) in diameter, by 9. 5 cm (3. 8 in. ) deep. Net weight shall not exceed 2. 8 kg (6. 0 lb). The loudspeaker shall be the MM2F. Specifications: Frequency Response: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800-5, 000 Hz ±5 dB Power Handling, 8 Hours, 6 dB Crest Factor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 watts (500-5, 000 Hz pink noise) Impedance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All metal speaker parts are of anodized aluminum with baked-on acrylic paint. Diaphragm is phenolic impregnated linen-base. Installation MM2 Frequency Response Figure 3 shows the axial frequency response of the MM2/MM2F. It was measured at a distance of 1 meter, using a swept sine wave. A serrated swivel mounting bracket with locking nut is furnished for installing the MM2 and is designed so the speaker can be moved through an angle of at least 90°. Three mounting holes are present in the base of the mount. MM2F Low-Frequency Driver Protection When frequencies below the low-frequency cutoff for the horn assembly are fed to the driver, excessive current may be drawn by the driver. For protection of the driver and amplifier, a capacitor in series with driver is recommended. For drivers without transformers: 16-ohm driver 25 V - 100 mf 150 Vdc or 150 V non-polarized electrolytic, or two 150 V electrolytics of two times required value in series, back to back, for 70-volt lines. The MM2F is provided with six mounting holes 7/32 inch in diameter around a 6. 625 inch circle, to be installed behind a 6-1/8 inch diameter hole. Directional Performance The directional characteristics of the MM2/MM2F were measured by running a set of polar responses in a large anechoic chamber. The test signal was 1/3-octave-band-limited pseudo-random pink noise centered at the ISO standard frequencies indicated in Fig. Additional typical data is provided in Figure 2 that indicates 6 dBdown beamwidth versus frequency for the MM2/MM2F. Figure 2 MM2F Beamwidth vs. Frequency Figure 1 MM2F Polar Response USA Canada Switzerland Germany France Australia Hong Kong Japan Singapore Mexico UK Africa, Mid-East Latin America 12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-884-4051, FAX: 952-884-0043 705 Progress Avenue, Unit 46, Scarborough, Ontario, Canada, M1 H2 X1, Phone:416-431-4975, 800-881-1685. FAX:416-431-4588 Keltenstrasse 11, CH-2663 IPSACH, Switzerland, Phone: 41132-331-6833. FAX: 41132-331-1221 Hirschberger Ring 45, 094315, Shooting, Germany, Phone: 49 9421-706 392, Fax: 49 9421-706 287 Parc de Courcerin, Alice Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: 3311-6480-0090, FAX: 3311-6480-4538 Unit 23, Block C. [. . . ] Frequency Figure 1 MM2F Polar Response USA Canada Switzerland Germany France Australia Hong Kong Japan Singapore Mexico UK Africa, Mid-East Latin America 12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-884-4051, FAX: 952-884-0043 705 Progress Avenue, Unit 46, Scarborough, Ontario, Canada, M1 H2 X1, Phone:416-431-4975, 800-881-1685. FAX:416-431-4588 Keltenstrasse 11, CH-2663 IPSACH, Switzerland, Phone: 41132-331-6833. FAX: 41132-331-1221 Hirschberger Ring 45, 094315, Shooting, Germany, Phone: 49 9421-706 392, Fax: 49 9421-706 287 Parc de Courcerin, Alice Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: 3311-6480-0090, FAX: 3311-6480-4538 Unit 23, Block C. Slough Business Park, Slough Avenue, Silverwater, N S. W. 2128, Australia, Phone: 6112-9648-3455, FAX: 61/2-9648-5585 Unit E & F, 211F, Luk Hop Industrial Bldg. , 8 Luk Hop St. , San PO Kong. [. . . ]