User manual ELECTRO-VOICE APH DATASHEET

[. . . ] The Sx80PI's high-frequency horn is driven by the DH2005 one-inch throat, wide-bandwidth, titanium-diaphragm driver. This driver uses a unique, convex-drive Time PathTM phasing plug structure (U. S. Patent #4, 525, 604) for smooth and extended highfrequency performance. The voice coil is coupled to the diaphragm with EV's exclusive Resonant DriveTM Technology. [. . . ] Response within the 90° x 65° rated coverage angle is uniform, which means dependable audience coverage without "hot spots" or dead zones at certain frequencies. The 90° x 65° dispersion characteristic also helps avoid early reflections from nearby floor or side-wall surfaces which could degrade performance. The controlled directivity of the high- and low-frequency transducers also eliminates response irregularities caused by diffraction off nearby enclosure edges and, in combination with an essentially flat on-axis frequency response, produces a total acoustic power output that is uniform with frequency. Directivity A unique feature of the Sx80PI is the constant-directivity dispersion provided by the 90° x 65° horn. The polar response of the system at selected one-third-octave bandwidths is shown in Figure 2. These polar responses were measured in a full-space anechoic environment at 6. 1 meters (20 feet) using one-third-octave pink-noise inputs. The frequencies selected are fully representative of the polar response of the system. Beamwidth of the system utilizing the complete one-third-octave polar data is shown in Figure 3. Directivity factor, R, and directivity index, Di, are plotted in Figure 4. Power-Handling Capacity Electro-Voice components and systems are manufactured to exacting standards, ensuring they will hold up, not only through the most rigorous of power tests, but also through continued use in arduous, real-life conditions. The EIA Loudspeaker Power Rating Full Range (ANSI/EIA RS-426-A 1980) uses a noise spectrum which mimics typical music and tests the thermal and mechanical capabilities of the components. This will help prevent any moisture from wicking through the foam- and mesh-backed grille Sx80PI T wo-Way Speaker System With Transformer OmniMount® Series 75 can be obtained from: OmniMount Systems Inc. 8201 South 48th Street Phoenix, AZ 85022 Tel: 602/829-8000 Fax: 602/756-9000 Transformer Settings (Sx80PIX) Suspending Sx80PI Enclosures WARNING: Suspending any object is potentially dangerous and should be attempted only by individuals who have a thorough knowledge of the techniques and regulations of rigging objects overhead. Electro-Voice strongly recommends that the Sx80PI be suspended taking into account all current national, federal, state, and local regulations. It is the responsibility of the installer to ensure the Sx80PI is safely installed in accordance with all such regulations. If the Sx80PI is suspended, Electro-Voice strongly recommends that the system be inspected at least once a year. If any sign of weakness or damage is detected, remedial action should be taken immediately. The Sx80PI enclosure contains seven M6 inserts and (see Figure 7) which are built into the enclosure for the purpose of suspension. These inserts can be used with either the Sx80MB mounting bracket from ElectroVoice, or with an OmniMount® Series 75 mounting system. Sx80MB The Sx80MB is a universal U-bracket designed to allow the suspension of the Sx80PI at any angle and orientation from the wall or ceiling (See Figures 7 and 8). It uses M6 inserts on the top and the bottom of the enclosure. There is an extra M6 insert on the top of the enclosure for a safety chain. [. . . ] The system shall be capable of producing average sound levels in excess of in the long term, and short-term peaks. The loudspeaker system shall be the Electro-Voice Sx80PI (non transformer) or Sx80PIX (transformer). Uniform Limited Warranty Electro-Voice products are guaranteed against malfunction due to defects in materials or workmanship for a specified period, as noted in the individual product-line statement(s) below, or in the individual product data sheet or owner's manual, beginning with the date of original purchase. If such malfunction occurs during the specified period, the product will be repaired or replaced (at our option) without charge. [. . . ]