User manual QSC AUDIO AD-821 REV C

[. . . ] AD-C Series AD-C820/AD-C821/ AD-C1200 User Manual AD-C820 ­ 203 mm (8") 2-way coax baffle assembly AD-C800BB ­ Pre-install enclosure for AD-C820 AD-C821 ­ 203 mm (8") 2-way coax blind-mount AD-C800 RAIL KIT ­ Split Ring and Tile Rails for AD-C821 AD-C800RG ­ Round Grille for 8" loudspeaker AD-C800SG ­ Square Grille for 8" loudspeaker AD-C1200 ­ 304 mm (12") 2-way coax baffle assembly AD-C1200BB ­ Pre-install enclosure for AD-C1200 AD-C1200SG ­ Square Grille for 12" loudspeaker TD-000296-00 REV. C *TD-000296-00* IMPORTANT SAFETY PRECAUTIONS AND EXPLANATION OF SYMBOLS WARNING! 1. Install in accordance with QSC Audio Product's instructions and local building codes. The installation should be done by a licensed installation professional. [. . . ] Install a Wire Clamp Fitting into the selected knockout holes. You can substitute the necessary fitting if the facility's loudspeaker signal wiring is in conduit. Route the facility's loudspeaker signal wires through the knockout hole(s)/Wire Clamp Fittings and to the ceramic terminal block. Make sure there is enough wire to strip, tin, and connect the wires. Do not secure the Wire Clamp Fitting at this time. Strip the ends of the wires to approximately 0. 4"(10 mm), and tin the ends of the wires. There are two wires already connected to the terminal block; the striped wire is negative, the solid color wire is positive (Figure 17). Do not remove these wires, but ensure the locking screws are tight. Connect and secure the facility's loudspeaker signal wiring to the ceramic terminal block using a #1 Phillips head screwdriver. Note: For daisy-chaining loudspeakers, insert the extra pair of wires into the same connections as the facility's loudspeaker signal wires described in these steps. Note: Typically the striped wire is black/white, the solid is gray. 11 d c b ­ Figure 17 ­ a. Facility's loudspeaker signal wiring b. Wire holding screws a AD-C820 Installation 1. Connect the 10-pin Mate-N-LokTM connector from the AD-C800BB to J1 on the transformer tap switch PCB. Connect the 3 Faston connectors to the crossover points J2, J3, and J4 on the larger PCB. Note: J2, J3, and J4 are labeled for the proper wire color. If the wire colors on the harness are different than the labels, one connector is smaller than the other two and will fit on only one jack. The other two wires can be connected to either of the two larger jacks. Wiring harness from AD-C800BB J4 J3 J2 J1 ­ Figure 18 ­ 3. Follow the instructions on page 13 titled Mount the AD-C820 or AD-C821 Loudspeaker System. 12 Mount the AD-C820 or AD-C821 Loudspeaker System Note: The Mounting Clamps are part of the assembly and allow for mounting surfaces (ceiling) up to 2. 75" in thickness. Do not install the grille until clamps have been tightened and any adjustments made. Before inserting the loudspeaker into the mounting hole or AD-C-800BB back box, adjust the Mounting Clamps counterclockwise, using a Phillips screwdriver, so they are folded in against the loudspeaker backcan and provide enough space for the thickness of the ceiling to which you are mounting the loudspeaker. Note: Turning the Mounting Clamp Screw counterclockwise increases the space (loosens), and folds the Mounting Clamp next to the loudspeaker back can. [. . . ] The grille cloth will have paint on it which reduces audio performance. Attach the new grille cloth using 3MTM Super 77TM Multipurpose Adhesive per the manufacturer's instructions Note: Do NOT paint grille while installed on speaker. 19 Dimensions AD-C800BB 10. 9" 11. 2" 275. 7 283. 7 mm mm 8. 0" 202. 3 mm 0. 3" 0. 8 mm 11. 8" 299 mm Ceiling Cutout Dim = Ø 305 mm AD-C821 11. 5" 292. 1 mm 11. 5" 292 mm Note: The 11. 5" measurement is the actual dimension of the hardware. For cutting the mounting hole, refer to the Cut Mounting Hole in Ceiling section in this document. 20 Dimensions Continued AD-C1200BB 15. 5" 394 mm 15. 0" 381 mm 14. 6" 371 mm 23. 0" 584 mm 14. 6" 371 mm 17. 9" 555 mm 20. 4" 518 mm Ceiling Cutout Dim = 376 mm x 376 mm 21 Specifications AD-C820/AD-C800BB System Configuration Frequency Response (-6 dB) Frequency Range (-10 dB) Passive AD-C821 Passive AD-C1200/AD-C1200BB 61 Hz ­ 18 kHz 52 Hz ­ 18 kHz 61 Hz ­ 18 kHz 52 Hz ­ 18 kHz 114 dB 120 dB 1. 4" 8" 100° 42 Hz ­ 18 kHz 37 Hz ­ 18 kHz 118 dB 124 dB 1. 75" 12" 90° System calculated maximum Output (RMS) 114 dB (Peak) 120 dB Transducers (HF) (LF) Nominal Coverage (Horizontal/Vertical) Impedance () Continuous Power Rating Recommended Amp Power System Sensitivity Bass Loading Connectors 1. 4" 8" 100° HF: 16 Ohm LF: 16 Ohm System: 16 Ohm 200 W 400 W 91 dB Ported 200 W 400 W 91 dB 300 W 650 W 93 dB Back box: ceramic block connector Two 2-pin Euro-style connectors inputs and "through" connectors (rated for 400 W max) Loudspeaker Baffle: 10-pin Mate-N-LokTM connector and Faston connectors. Transformer "tap" selector: 100V: 16 bypass, Off, N/A, 100 W, 50 W, 25 W 70V: 16 bypass, Off, 100 W, 50W, 25 W, 12. 5 W CE, UL 1480 (commercial/professional use, outdoor damp), UL 2043 (air handling spaces) 0. 6 cu. [. . . ]