User manual ELECTRO-VOICE E-V 6B DATASHEET

[. . . ] The voice coil shall have a nominal diameter of 2. 54 cm (1. 0 in. ) and depth of 7. 6 mm (0. 3 in. ) and shall operate in a gap of not less than 1. 0 T (10, 000 Gauss). High frequencies shall be reproduced by 5. 7 cm (2. 2 in. ) free-edge cone attached to the apex of the low-frequency device and protected from dust by a dust dome fastened to the low frequency cone. The loudspeaker shall exhibit a sensitivity (SPL, 1 W at 1 m (3. 28 ft) averaged 200 - 4, 000 Hz) of no less than 94 dB on axis maintaining an essentially flat frequency response with 3 dB-down points at 115 Hz and 12, 000 Hz in a 12-cubic-foot sealed box in a free field. [. . . ] The nominal impedance shall be 8 ohms and the do resistance shall be 6. 5 ohms. The loudspeaker shall be capable of handling a continuous 10-watt (8. 6 volts true RMS) shaped white-noise signal (as per EIA RS-426A 1980) with a 6 dB crest factor for eight hours. The loudspeaker shall be the Electro-Voice® model 209-8A. When fitted with a transformer that allows connection to 25/70. 7/100-volt systems of 0. 5 to 4 watts, the loudspeaker shall be referred to as the Electro-Voice® model 209-4T and the 209-4TWB with transformer and grille. Specifications: Frequency Response: 80 - 15, 000 Hz, ±5 dB (see Page 4) Power-Handling Capacity: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 watts (per EIA RS-426-A 1980 (80 - 15, 000 Hz bandlimited pink noise, 6 dB crest factor): Impedance: Nominal: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ohms Minimum: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ohms (230 Hz) Sound Pressure Level: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 dB (at 1 Meter, 1 Watt Input, 200-4, 000 Hz Average) Maximum SPL: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 dB for 10W @ 1M Voice-Coil Diameter: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 54 cm (1. 0 in. ) Magnet Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . However, it is also available with transformer, the 209-4T, and with transformer and grille, the 209-4TWB. The 209-4T utilizes a 4-watt, 25/70. 7/100-volt universal line matching transformer with power taps ranging from 0. 5 to 4 watts as indicated in the table below. The transformer is mounted to the frame and the primary winding is accessible for the user to select any of the power taps indicated in the table below. All wattages marked for the various taps refer to the load on the amplifier, with the insertion loss of the transformer being less than 2 dB. Recommended Enclosures and Baffles 209-8A and 209-4T are designed to fit on standard 8-inch ceiling speaker baffles. Additionally, the 209 series loudspeakers will accommodate the use of any standard back enclosure with a diameter of 8. 6 inches or greater and a depth of at least 3. 5 inches. Larger back volumes will increase the lowfrequency output. The frequency response of a 209 in a typical 0. 25-cubic-foot and 1. 8-cubic-foot back enclosure are shownon page 4. Mounting The 209 may be front- or rear-mounted against either surface of its mounting flange and requires a 18. 4 cm (7. 25 in. ) diameter cutout and a 19. 5 cm (7. 68 in. ) bolt circle. Normal fasteners up to 5 mm (0. 20 in. ) will fit through the eight holes in the frame. The 209 is designed for mounting on standard ceiling speaker baffles. Mounting Diagram 209-4T 25V 4. 0W 2. 0W 1. 0W . 05W Common 8 Ohms Common Brown Red Orange Yellow Black White Black 70V Yellow Green Blue Violet Black White Black 100V Green Blue Violet N/A Black White Black Wiring Diagram Dimensions Polar Response in 1. 8 ft3 Sealed box 4 volt RMS of 1/3 octave Band Limited Noise in Anechoic Environment, 20 feet on Axis. Axial Frequency Response (1 watt / 1 meter) Input Impedance vs. [. . . ] Frequency in 1. 8 ft3 Sealed Box Directivity Factor and Directivity Index vs. Frequency 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, M1H2X1, Phone: 416-431-4975, 800-881-1685, FAX: 416-431-4588 Keltenstrasse 11, CH-2563 IPSACH, Switzerland, Phone: 41/32-331-6833. FAX: 41/32-331-1221 Hirschberger Ring 45, D94315, Straubing, Germany, Phone: 49 9421-706 392, FAX: 49 9421-706 287 Parc de Courcerin, Alle Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: 33/1-6480-0090, FAX: 33/1-6480-4538 Unit 23, Block C, Slough Business Park, Slough Avenue, Silverwater, N. S. W. [. . . ]