User manual ELECTRO-VOICE XI-SERIES

[. . . ] More of the important vocal range is aimed at the absorptive audience instead of the reflective room surfaces. Reduced output below the systems suppresses feedback from microphones under the loudspeakers. engineers have systematically exposed these resonances and suppressed them one by one. The resonances may not be measurable by conventional means, and are typically many dB below the desired signal. [. . . ] When the 48-inch height of the Xi-2153/64F is excessive, consider the 36-inch Xi1153/64F (one 15-inch woofer) in dipole configuration. A DL-type 12-inch mid-bass driver features RMDTM and is coupled to the 19-inch mid-bass horn. Dual EVX-155 15-inch woofers offer performance to 45 Hz, appropriate for numerous systems without lowfrequency enhancement. The DH6 large-format compression driver with RMDTM provides superior and level-stable upperfrequency detail. Providing more RMDTM, the horn is coaxially but asymmetrically positioned within the mid-bass horn to suppress unwanted acoustic resonances and is fully shrouded to preserve mid-bass wave-front detail. Xi-2123/106F: Three-way, dual-12-inch 100° x 60° full-range system, tripole configurable The Xi-2123/106F has a wide, 100° x 60° coverage pattern for down-fill and distributed applications. The 60° vertical angle is particularly appropriate when mounting height is too low for the more conventional 40° angle. The Xi-2123/106F may be used in tripole configuration with Merlin® ISP-100 processing, where overlap in the 250- to 550-Hz range of the MB horn and the dual, flanking woofers extends vertical pattern control to 160 Hz. Such wide-band control of directivity increases voice "F" suffix indicates flying configuration. Systems shown without grille. Xi-1183/64F and Xi-2183/64F: Three-way, 18-inch 60° x 40° full-range systems for conventional crossover and increased LF output In situations where acoustic conditions are sufficiently ideal and/or the feedback potential PAGE 4 Xi-1183/64F Two- ways with special protection option intelligibility and musical clarity in reverberant spaces and reduces the possibility of feedback beneath the systems. The Xi-2123/106F may also be conventionally crossed over, without LF/MB overlap, with decreased vertical directivity control. The dual DL12-type woofers, modified for increased excursion and overall output, extend bass response of the Xi-2123/64 to 60 Hz. The rotatable, 14-inch square mid-bass horn loads a DL-type 10-inch cone transducer. A DH6 large-format compression driver drives the rotatable HF horn. Compact, two-way full-range systems for stand-alone use in small- to medium-sized installations and to complement the performance of the large Xi-SeriesTM systems. Optional Merlin® ISP-100 processing provides unusually effective protection against component failure, for maximum output from two-way direct-radiating systems. Merlin® ISP-100: Excursionsmart, look-ahead limiting For the biamp-only Xi-SeriesTM two-way systems (Xi-1122 and Xi-1152), the optional Merlin® ISP-100 provides the ultimate in sonically unobtrusive yet ultraeffective protection against driver destruction. Merlin® extracts maximum output from these ultracompact, directradiating Xi-SeriesTM systems. Integral carrying handles and stand-mount adapter, in addition to the L-track top and bottom rigging, facilitate a wide range of portable and fixed applications. Xi-1123/106F: Three-way, 12-inch 100° x 60° fullrange system, dipole configurable When extended-frequency vertical directivity control is desired but vertical clearance is limited, the Xi-1123/106F should be considered. At 32 inches rather than 40 inches high, the Xi-1123/106F has one DL-type 12-inch woofer adjacent to the MB horn. With the Merlin® ISP-100 providing MB/LF overlap in the 250­ to 550-Hz range, vertical directivity is controlled to 250 Hz. The Xi-1123/106F may also be conventionally crossed over, without LF/MB overlap, with decreased vertical directivity control. "F" suffix indicates flying configuration. Systems shown without grille. PAGE 5 Low-frequency and subwoofer systems Xi-SeriesTM low-frequency and subwoofer systems are optimally vented designs appropriate for single and multiple use, flown or ground mounted. All models feature the renowned, 1, 000-watt (program) EVX-180B verylow-frequency reproducer with four-inch voice coil and a peak-to-peak excursion ability of nearly two inches! [. . . ] exit) on 60°x 40°rotatable horn on 60°x 40° 4/16/16 ohms Two Neutrik NL8MPR 800/800/600 W N/A 18 mm, 13-ply birch Black textured paint 1, 233 mm (48. 54 in. ) 586 mm (23. 07 in. ) 354 mm (13. 93 in. ) 759 mm (29. 88 in. ) 113. 4 kg (250 lb) 4/16/16 ohms Two Neutrik NL8MPR 800/800/600 W N/A 18 mm, 13-ply birch Black textured paint 1, 233 mm (48. 54 in. ) 586 mm (23. 07 in. ) 354 mm (13. 93 in. ) 759 mm (29. 88 in. ) 113. 4 kg (250 lb) Full-Range Two-Way Systems System: Frequency Response: Crossover Frequencies: Power Handling, Long Term: Sensitivity (1 W/1 m), Triamp: Biamp/FR: Nominal Coverage Angle (H x V): Dipole/Tripole Configurable (with Merlin® ISP-100): Excursion-Smart Protection (with Merlin® ISP-100): Transducers, LF: N/A MB: HF: exit) (2. 0-in. exit) on 40°x 20°horn Impedance LF-FR/MB/HF: 8/ N/A /16 ohms N/A / 8/8 ohms Connectors: Two Neutrik NL4MPR Recommended Power Amp (watts @ 8 ohms), LF/MB/HF: 600/ N/A /600 W Passive MB/HF or FR: N/A (2. 0-in. exit)on 60°x 40° on 80°x 55°horn 8/ N/A /16 ohms 8/ N/A /16 ohms Xi-1122/85 60-20, 000 Hz 1, 500 Hz 300/75 W N/A 99. 0/110. 0 dB 8 0°x 55° Xi-1152/64 50-20, 000 Hz 1, 500 Hz 600/75 W N/A 98. 0/113. 0 dB 6 0°x 40° Xi-1152/94 Low-Frequency and Subwoofer Systems Xi-1191/Xi-1191F Sub Xi-2181/Xi-2181F LF 37-200 Hz Special-Purpose Systems Xi-1082 Under Balcony Xi-2122/42 Long Throw 50-20, 000 Hz 125-20, 000 Hz 125 Hz, 1, 760 Hz 600/150 W N/A 109. 0/116. 0 dB 4 0°x 20° 50-20, 000 Hz 37-160 Hz (to 27 Hz in step-down) 1, 500 Hz 125 Hz 600/75 W 600 W N/A N/A 98. 0/112. 0 dB 94 dB 9 0°x 40° 300°x 270° 125 Hz 3, 500 Hz (passive) 1, 200 W 175 W N/A N/A 98. 5 dB 90 dB 240°x 300° 9 0°x 40° (long axis horizontal) N/A N/A N/A Yes DL-type 12-inch N/A N/A Yes EVX-155 15-inch N/A N/A Yes EVX-155 15-inch N/A DH6-16/2 N/A N/A No 8-inch woofer Two-12-inch mid-bass Two ND5-16 (1. 4-in. 9 0°x 40°horn 8/ N/A / N/A ohms Two Neutrik NL8MPR N/A / 800/600 W N/A Yes (with two-ways) Yes (with two-ways) N o EVX-180B 18-inch Two EVX-180B 18-inch N/A N/A N/A N/A N/A on mid-bass horn DH3 on HT94 DH6-16 (1. 4-in. 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