Instruction/ maintenance manual of the product MD-FP122/94r QSC Audio
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1675 MacArthur Blvd., Costa Mesa, CA, 92626 USA Main Number (714) 75 4-6175 or toll free (USA only) (800) 854-4079 Customer Service(714) 957-71 50 or toll free (USA only) (800) 772-2834 MD Series Powe.
2 Important Safety Precautions & Explanation of Symbols Install in accordance with QSC Aud io Product's instructions and under the supervision of a licensed Professional Engineer . WA RN I N G ! CAUTION: TO REDUCE THE RISK OF ELECTR IC SHOCK, DO N OT REMOVE THE C OVER.
3 Introduction Congratulations and thank you for your purchase of this profes sional, powered loudspeaker product. T o get the most from your in vestment, we recommend you review all the information provided in this User Manual.
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.
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 con nection of multiple enclosures in a “daisy-chain” fashion.
6 SIG (Signal) Indicator LED The green SIG (signal) indicator alerts the user to the presence of an input signal to the MD loudspeaker . Normal Indication The green SIG indicator illuminates when the input signal exceeds -25 dB. If No Indication Check Gain settings and increase gain if necessary .
7 Dimensions NOTE! Handles are provided on black-colored enclosures only! White-colored enclosures are not equipped with handles..
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.
9 Horn Rotation The coverage angles for each model, as shipped from t he 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.
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 13.
11 Specifications MD-FP152/64r MD-FP152/94r MD-FP152/124r Frequency Response, ±3dB 50-17.5k Hz 50-19k Hz 50-19k Hz Frequency Range, -10dB 45-18k Hz 45-20k Hz 5-20.5k Hz Maximum Peak SPL 129dB 129dB 129dB Nominal coverage, H x V 60°x40° 90°x40° 120°x40° (as installed at factory) Directivity Index 12.
W arranty (USA only; other countries, see your dealer or distributor) Disclaimer QSC Audio Products, Inc. is not liable for any damage to amplifiers or any other equipment that is caused by negligence or impr oper installation and/or use of this loudspeaker product.
An important point after buying a device QSC Audio MD-FP122/94r (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought QSC Audio MD-FP122/94r yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data QSC Audio MD-FP122/94r - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, QSC Audio MD-FP122/94r you will learn all the available features of the product, as well as information on its operation. The information that you get QSC Audio MD-FP122/94r will certainly help you make a decision on the purchase.
If you already are a holder of QSC Audio MD-FP122/94r, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime QSC Audio MD-FP122/94r.
However, one of the most important roles played by the user manual is to help in solving problems with QSC Audio MD-FP122/94r. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device QSC Audio MD-FP122/94r along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
