User manual QUAD ESL 57

[. . . ] 05 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 07 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08 . . . . . . . . . . . . . . . . . . . . . . . . . . . . BACK COVER Connections: Low Impedance Connections Impedance Charts 70/100V Connections Rigging and Suspension The rigging, suspension or mounting of these products can expose the installer and members of the public to serious health risks and even death. UNDER OR FULLY LOCAL, SAFETY PROPERLY NO CIRCUMSTANCES MOUNT AND AND THIS ATTEMPT EQUIPMENT TO DO TO SO IF RIG, BY ALL YOU OF FOR SUSPEND YOU ARE RELEVANT RELEVANT ARE NOT PERTINENT ADVICE CE Compliance: Statement OTHERWISE QUALIFIED STATE UNLESS CERTIFIED NATIONAL BE DO Dimension Drawings: All Arena Models Specifications AUTHORITIES. NOT KNOW PERSONNEL REGULATIONS QUALIFIED MUST OR Contact Information: QUAD Industrial Contact Information REGULATIONS, AND ASSISTANCE. CONSULT QUALIFIED Limited Liability QUAD Industrial assumes no liability whatsoever for any damage or loss, either direct or consequential arising from the installation and use of these products. Liability is limited to replacement of product or refund, at the QUAD Industrial's discretion. Your rights to compensation may vary by territory; consult with your local QUAD Industrial office or distributor. Warranty & Service These products are designed to be used as specified, and are warranted to be free from defects in materials or workmanship. Please contact your local QUAD Industrial sales office or distributor for complete details. Doing so may limit or void warranty coverage. 2 PR ODUC T DESCRIPTION The Arena range of two-way ceiling mounted loudspeakers are large format high-performance point-source systems designed for the most demanding voice and music reinforcement applications in distributed systems. · QT-250 ­ 250 Watt 70/100V Line matching transformer I N S TA L L AT I O N Arena speaker models are designed to be suspended by means of the four welded steel suspension points on the rear of the enclosure. Proper suspension requires the use of all four points for even weight distribution and safety. Other installation schemes are possible with third-party accessories and enclosures. Consult with your local distributor or QUAD Industrial directly for further information. NOTE: Suspend speakers using Aircraft cable FULL GRILLE 6, 8 & 10 Select the appropriate FULL GRILLE model for applications where Arena speakers require a square grille in place of the round grille supplied. · FULL GRILLE-6 ­ Round, painted, White replacement grille for Arena 6 FULL GRILLE-8 ­ Round, painted, White replacement grille for Arena 8 FULL GRILLE-10, 12 & 15 ­ Square, painted, White replacement grille for Arena 10, Arena 12 and Arena 15 · · 4 CONNEC TION & OPER ATI O N Low Impedance (16) Connections Low impedance models are fitted with two terminals for the (+) and (-) incoming amplifier feed. Ensure that the total impedance of connected speakers does not fall below the minimum impedance of the connected amplifier. The following table shows the net impedance when several speakers (16) are combined in parallel. No. [. . . ] Ensure that the total impedance of connected speakers does not fall below the minimum impedance of the connected amplifier. The following table shows the net impedance when several speakers (16) are combined in parallel. No. of Speakers in Parallel 2 3 4 5 6 7 8 Combined Impedance 70/100V Connections 70/100V Models use one terminal for the Common (-) connection and the other three terminals for the transformer power taps. [. . . ]