Page 2 - Important Safety Precautions & Explanation of Symbols; FCC Interference Statement
2 Important Safety Precautions & Explanation of Symbols Install in accordance with QSC Audio Product's instructions and under the supervision of a licensed Professional Engineer. WARNING! CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER. NO USER-SERVICEABLE PARTS INSIDE. RE...
Page 3 - Introduction; Installation
3 Introduction Congratulations and thank you for your purchase of this professional, powered loudspeaker product. To get the most from your investment, we recommend you review all the information provided in this User Manual. The Modular Design (or “MD”) self-powered loudspeakers provide excellent s...
Page 4 - Cooling; AC Mains; AC Mains Connection
4 Installation (continued) Cooling This product’s internal power amplifier produces some heat as a normal condition of operation. Allow a minimum of 4” (100mm) clearance at cabinet back for adequate ventilation, and avoid exposing to hot lights or direct sunlight. For ambient temperatures below 104°...
Page 5 - Input/Output Connections; Input connection; Output Connection; Gain Control; Full Range Setting
5 Input/Output Connections The active MD has a balanced 3-pin female XLR input marked IN and a male XLR output con-nector marked OUT. These connectors are wired in parallel, enabling connection of multiple enclosures in a “daisy-chain” fashion. Balanced connections are recommended for less AC hum an...
Page 7 - Dimensions
7 Dimensions NOTE! Handles are provided on black-colored enclosures only! White-colored enclosures are not equipped with handles.
Page 8 - Location of Pick Points
8 Location of Pick Points There are fifteen (15) load-rated pick points on the MD enclosure; four each on the top and on the bottom, two each on the sides, and three on the rear of the enclo-sure. These pick points are indicated with arrowheads on the illustration. Note the pick points on the cabine...
Page 9 - Horn Rotation; How to Rotate the Horn
9 Horn Rotation The coverage angles for each model, as shipped from the factory, are show in the specifications section. If desired the high-frequency driver/horn assembly can be rotated 90° in order to change the coverage angle planes. Example: An MD-FP122/64r as shipped from the factory has a nomi...
Page 10 - Specifications
10 Specifications MD-FP122/64r MD-FP122/94r MD-FP122/124r Frequency Response, ±3dB 50-17.5k Hz 55-20k Hz 55-18.6k Hz Frequency Range, -10dB 50-18k Hz 50-20.5k Hz 50-20k Hz Maximum Peak SPL 128dB 128dB 128dB Nominal coverage, H x V 60°x40° 90°x40° 120°x40° (as installed at factory) Directivity Index ...