User manual ELECTRO-VOICE SX80PIPIX EDS

[. . . ] One of the many other unique features of the Sx80PI is the cabinet. Constructed of highimpact polystyrene it provides a stiff and extremely durable enclosure. The cabinet includes M6 threaded inserts for the optional Sx80MB U-bracket. It also has inserts for installing with an OmniMount® Series 75 mounting system. [. . . ] 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. Electro-Voice will support relevant additional standards as and when they become available. Extreme, in-house power tests, which push the performance boundaries of the woofers, are also performed and passed to ensure years of trouble-free service. Specifically, the Sx80PI passes ANSI/EIA RS-426-A 1980 with the following values: RSR = 6. 21 ohms (1. 15 x RE) RE = woofer DCR = 5. 4 PE(MAX) = 175 watts Test voltage = 32. 97 volts rms, 65. 93 volts peak (+6dB) The "peak" power-handling capacity of a woofer is determined by the peak test voltage amount. For the Sx80PI, a 65. 93-volt peak test voltage translates into 700-watts short-term peak power-handling capacity. This is the equivalent of four times the "average" power-handling capacity, and is a peak that can be sustained for only a few milliseconds. However, this sort of short duration peak is very typical in speech and music. Provided the amplifier can reproduce the signal accurately, without clipping, the woofer will also perform accurately and reliably, even at these levels. Service In the unlikely event the Sx80PI requires service, the woofer can be removed from the front. The high-frequency driver can be removed by separating the front and the rear halves of the enclosure and removing the bolt that attaches the driver to the rear. A service data sheet is available from Electro-Voice. Sx80PI Two-Way Speaker System With Transformer 2 Enclosure Construction The Sx80PI enclosure is contructed of verydurable High-impact polystyrene that is hard to dent, scratch, or break. This enclosure allows for molded in attachment points for the optional Sx80MB mounting bracket or for use with an OmniMount® Series 75 mounting system. The enclosure is paintable to match any decor. It is recommended, however, that a small area should be tested with the desired paint in order to ensure that there are no adverse effects and that the paint has sufficient adhesion. Care should be taken not to get paint onto the woofer cone or into the horn throat. Frequency Response The combination of a 203-mm (8-inch) woofer, a wide-bandwidth high-frequency driver and an equalized crossover results in the wide and smooth overall response shown in Figure 1a. This response was measured at 1 meter (3. 281 feet), using a 2. 83-volt swept sine-wave input in a full-space anechoic chamber using the internal passive crossover. Figure 1a also shows the half-space measurement of the Sx80PI loudspeaker. This curve gives an indication of how the system will respond when mounted on a wall, which is a likely application. This response was also measured at 1 meter (3. 281 feet), using a 2. 83-volt swept sine-wave input using the internal passive crossover. Figure 1b shows the full and half space measurments with optional port covers installed. Port Covers The two ports, between the horn and the woofer, may be "sealed" in order to add further weather protection to the system. [. . . ] Central Standard time. Sx80PI Two-Way Speaker System With Transformer Electro-Voice Speakers and Speaker Systems are guaranteed against malfunction due to defects in materials or workmanship for a Incidental and Consequential Damages period of five (5) years from the date of origiExcluded: Product repair or replacement and nal purchase. The Limited Warranty does not return to the customer are the only remedies apply to burned voice coils or malfunctions provided to the customer. Electro-Voice shall such as cone and/or coil damage resulting not be liable for any incidental or consequfrom improperly designed enclosures. Elecuential damages including, without limitation, tro-Voice active electronics associated with injury to persons or property or loss of use. [. . . ]