QSC MD-FP122/64r User's Manual
Contents
1. 1675 MacArthur Blvd Costa Mesa CA 92626 USA Main Number 714 754 6175 or toll free USA only 800 854 4079 Customer Service 714 957 7150 or toll free USA only 800 772 2834 MD Series Powered Loudspeaker Products User Manual MD FP1 22 64r 60 x40 HxV 12 inch two way MD FP1 22 94r 90 x40 12 inch two way MD FP1 22 124r 120 x40 12 inch two way MD FP1 52 94r 90 x40 15 inch two way MD FP1 52 64r 60 x40 15 inch two way MD FP1 52 124r 120 x40 15 inch two way TD 000186 00 rev B Important Safety Precautions amp Explanation of Symbols Install in accordance with OSC Audio Product s instructions and under the supervision of a licensed Professional Engineer Ad warnine CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to humans A The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operat ing and maintenance servicing instructions in this manual 1 Read these instructions 2 Keep these instructi2. Finish and Grill Notes MD FP152 64r MD FP152 94r MD FP152 124r 50 17 5k Hz 50 19k Hz 50 19k Hz 45 18k Hz 45 20k Hz 5 20 5k Hz 129dB 129dB 129dB 60 x40 90 x40 120 x40 12 8 11 3 9 6 19 0 13 4 9 1 1 32k Hz 1 4k Hz 1 2k Hz LF 15 381mm diameter 4 102mm voice coil ferrite magnet HF 1 4 36mm exit diameter 2 5 64mm voice coil neodymium magnet all models LF 800W HF 200W all models 1 2Vims 4dB all models 7 5Vims 19 5dB all models XLR female 20k ohm balanced all models XLR male wired in parallel with Input connector Rotatable horn assembly Gain control 100 Hz high pass filter switch Clip Limit red LED Signal presence green LED Power blue LED all models Thermal limiting On Off muting AC in rush current limiting FCC class B conducted and radiated emissions UL CE listed e fa f e ae j i CE Notes 1 1 8 power is typical of maximum unclipped program levels 2 1 3 power represents moderately clipped operation 3 Full power only occurs for short peaks 4 BTU includes loudspeakers and amplifier Factory supplied cordset Neutrik Powercon on 10 3m 18AWG 120V North American cordset 20 5 521mm W 35 0 889mm H 17 1 432mm D including rear heatsink fins Allow for 100mm 4 0 of free space behind the enclosure to assure proper amplifier cooling 89 Ib 41 kg 88 Ib 40 kg 89 Ib 41 kg All models wear resistant textured paint finish
3. Output Connection Insert the female XLR connector into the jack marked OUT Connect the other end of the cable to the next down stream audio device s input connector Gain Control The Gain control is recessed and can be adjusted with a small screwdriver or flat tool Turn the gain control clockwise to increase gain and counter clockwise to decrease gain The attenuation in dB from maximum is shown on the label Filter Select Switch The Gain control is marked in dB of attenuation There are 21 detents for repeatable adjust ments The upper 14 steps are about 1 dB each and settings should normally be made within this range The range below 14 dB should not be used for normal program levels as the input 100Hz Lo cuT headroom could be exceeded but can be used for testing at reduced levels At the minimum Gain Control aa asa setting the signal is completely cut off Filter Select Switch Above the Gain control is a small toggle switch that selects either Full Range operation or applies a 100 Hz Lo Cut filter to the system 2 Full Range Setting l Use the Full Range setting for applications without subwoofers or dedicated low frequency gt enclosures m J 100 Hz Lo Cut Setting Use the 100 Hz Lo Cut setting for applications with optional subwoofers or low frequency sys tems gpp WON NI The two way wedge will have its low frequency content below 100 Hz filtered at 24dB per octave yielding less distortion at low frequencie
4. amplifier provided 2 Coverage Included angle between 6dB points plus X minus Y dB 500 to 3 2k Hz taken at ISO preferred one third octave intervals or for an otherwise specified frequency range 3 Directivity Index DI Difference between on axis SPL and average SPL considering all axes for the specified coverage range Dl 10 log Q 4 Directivity Factor Q Directivity index expressed as a power ratio O 10 exp DI 10 5 Amplifier Power The maximum sustained power at less than 1 clipping averaged over the intended frequency range 6 Input Sensitivity The sine wave input voltage required to reach amplifier clipping measured within the frequency range used to determine Maximum Peak SPL with the gain on normal and no gain reduction due to limiting 7 Input Headroom Clipping Maximum input voltage 8 Input Connector Impedance RF shunt capacitance should not reduce impedance by more than 30 at 20k Hz 9 TBD to be determined data not available at time of printing Specifications Frequency Response 3dB Frequency Range 10dB Maximum Peak SPL Nominal coverage H x V as installed at factory Directivity Index Directivity Factor Acoustic Crossover Freq Transducer Description Amp Power Input Sensitivity Input Headroom Clipping Input Connector Impedance Output Connector Controls Indicators and Adjustments Protection Agency certs AC Power Requirements AC Power Connector Dimensions Weight
5. 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 enclosure As shipped from the factory each pick point has a strength rated flat head bolt installed These bolts are load bearing components of the enclosure Do not remove these bolts except to replace a bolt with a forged shoulder eye bolt If a flat head screw is lost con tact QSC s Technical Services department for a replacement Ensure all pick point fasteners are installed and correctly tightened in order to maintain enclosure s rated strength Additionally air leaks resulting from missing hardware will degrade the loudspeaker s performance Use only 3 8 inch 16 threads per inch forged shoulder eye bolts OSC part number SR 000096 00 Contact OSC Technical Services depart ment for complete information Before placing installing rigging or suspending any speaker product inspect all hardware suspension cabinets transducers brack ets and associated equipment for damage Any missing corroded deformed or non load rated component could significantly reduce the strength of the installation placement or array Any such condition severely reduces the safety of the installation and should be immedi ately corrected Use only hardware which is rated for the loading conditions of the installation and any possible short term unexpected overloading Never exceed the rating of the hardware or
6. equip ment generates uses and can radiate radio frequency energy and if not installed and used in accordance to the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installa tion If this equipment does cause harmful interference to radio or television reception which can be determined by switching the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio or TV technician for help 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 sound quality quality construction energy efficient and clean power amplification on board and a multitude of models with common cabinet design making installation easier Its self contained installation solution optimized equalization and crossover rotatable high frequency horn 15 attachment points and minimal weight increase over non pow ered vers
7. equipment Consult a licensed Professional Engineer regarding physical equipment installation Ensure that all local state and national regulations regarding the safety and operation of flying equipment are understood and adhered to 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 F 40 C the fan will normally remain off Between 104 F 40 C and 122 50 F the fan will run for increasing periods of time Above 130 F 55 C the internal overheating protection will begin to operate The unit will reduce its gain and possibly mute If the fan appears to be running constantly try to reduce the ambient temperature to ensure full performance Keep anything that might restrict airflow away from the rear of the enclosure i e draperies fabric etc Do not install enclosures with their rear panels exposed to direct sunlight Direct sunlight will heat the A amplifier module and reduce its ability to produce full output Install sunshades if the application merits Maximum ambient temperature for full performance to specification is 45 C 113 F Do not install enclosures where exposed to rain or other water sources The enclosure is not weatherproof Outdoor installations must provide p
8. not illuminate when the Power switch is placed in the on position verify the AC mains line cord is properly attached to the loudspeaker and plugged into the AC outlet Verify the outlet is functioning properly If the AC mains cordset is serviceable and the AC mains outlet is operating properly but the loudspeaker fails to operate the loudspeaker may require servicing Contact OSC s Technical Services department Input Output Connections The active MD has a balanced 3 pin female XLR input marked IN and a male XLR output con cian eur nector marked OUT These connectors are wired in parallel enabling connection of multiple FULL RANGE enclosures in a daisy chain fashion boo Balanced connections are recommended for less AC hum and interference especially with long cable runs Unbalanced connections may be suitable for short cables The signal s source impedance should be less than 600 ohms o Cc a Input connection Input IN and Output Insert the male XLR input into the jack marked IN Ensure the connector is fully seated The OUT Connectors y input impedance is 12k ohm balanced or 6k ohm unbalanced gt Balanced inputs Connect to the plug as shown z 1 shield ground tz 3 minus HE gt 2 plus Unbalanced inputs Connect to the plug as shown Pin 3 and pin 1 must be connected with a jumper as shown gt 1 shield ground gt 3 jumper to pin 1 5 2 plus
9. usually caused by excessive ambient temperature since the internal temperature rise of the Class D power module is relatively low Protect the speaker from excessive tempera tures such as being placed over a heater vent or allowing direct sunlight to impinge upon the heat sink surface Le 1311V4 Vd l ino gpp WON NI o c v gt D gt F r m rc app WON NI LIM limiter indicator LED SIG signal indicator LED Dimensions 18 0 457mm a 35 0 889mm 20 5 521mm g 376mm 4 4 2 2 46 56mm 117mm A NOTE Handles are provided on black colored enclosures only White colored enclosures are not equipped with handles Location of Pick Points 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 0 0 sure These pick points are indicated with arrowheads on the illustration Note the pick points on the cabinet bottom are not shown but are identical to those indi cated on the cabinet top As shipped from the factory each pick point has a strength rated flat head bolt installed These bolts are load bearing components of the enclosure Do not remove these bolts except to replace a bolt with a forged shoulder eye bolt If a flat head screw is lost contact OSC s Technical Services
10. 40 13 0 11 1 9 6 19 8 13 0 9 1 1 4k Hz 1 4k Hz 1 2k Hz LF 12 305mm diameter 4 102mm voice coil ferrite magnet HF 1 4 36mm exit diameter 2 5 64mm voice coil neodymium magnet all models LF 800W HF 200W all models 1 2Vims 4dB all models 7 5V ms 19 5dB all models XLR female 20k ohm balanced all models XLR male wired in parallel with Input connector Rotatable horn assembly Gain control 100 Hz high pass filter switch Clip Limit red LED Signal presence green LED AC Power blue LED all models Thermal limiting On Off muting AC in rush current limiting FCC class B conducted and radiated emissions UL CE listed O p eee e wo f o E C a a HI a E anr Notes 1 1 8 power is typical of maximum unclipped program levels 2 1 3 power represents moderately clipped operation 3 Full power only occurs for short peaks 4 BTU includes loudspeakers and amplifier Factory supplied cordset Neutrik Powercon on 10 3m 18AWG 120V North American cordset 20 5 521mm W 35 0 889mm H 17 1 432mm D including rear heatsink fins Allow for 100mm 4 0 of free space behind the enclosure to assure proper amplifier cooling 88 Ib 40 kg 88 Ib 40 kg 89 Ib 41 kg All models wear resistant textured paint finish with powder coated perforated steel grill 1 Maximum Peak SPL Calculated by adding the loudspeaker s sensitivity 1W at 1m to the peak power dBw of the
11. d enclosures are not equipped with handles 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 nominal coverage of 60 in the horizontal plane and 40 in the vertical plane when the enclosure is oriented normally vertically as shown at the right To change the coverage to 40 in the horizontal plane and 60 in the verti cal plane the high frequency driver horn assembly would have to be removed rotated 90 and reinstalled How to Rotate the Horn this enclosure The grill assembly is under tension when installed Be sure to temporarily secure the grill with tape or have an assistant hold the grill edge while removing its retaining screws Note It is always best to have an assistant when working with large assemblies such as 1 Remove the four screws from one side of the grill while having an assistant hold the grill from springing free Remove the four screws from the other side of the grill Place the grill and retaining screws aside 2 Remove the eight horn retaining screws Carefully lift the horn from its mounting re cess while being careful not to tear or pull away the foam gasket between the horn and enclosure 3 Rotate the horn to the desired position and set back into it
12. department for a replace ment Ensure all pick point fasteners are installed and correctly tightened in A order to maintain enclosure s rated strength Additionally air leaks result ing from missing hardware will degrade the loudspeaker s performance Use only 3 8 inch 16 threads per inch forged shoulder eye bolts QSC part number SR 000096 00 Contact OSC Technical Services department for complete information Before placing installing rigging or suspending any speaker product inspect all hardware suspension cabinets transducers brackets and associated equipment for damage Any missing corroded deformed or non load rated component could significantly reduce the strength of the installation placement or array Any such condition severely reduces the safety of the installation and should be immediately corrected Use only Pick Points hardware which is rated for the loading conditions of the installation and any possible short term unexpected overloading Never exceed the rating Pick Points of the hardware or equipment Consult a licensed Professional Engineer regarding physical equipment 77 TT gt X installation Ensure that all local state and national regulations regarding the safety and operation of flying equipment are understood and adhered to Pick Points 4 additional Pick Points located on enclosure bottom NOTE Handles are provided on black colored enclosures only White colore
13. ime 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 Before placing installing rigging or suspending any speaker product inspect all hardware suspension cabinets trans ducers brackets and associated equipment for damage Any missing corroded deformed or non load rated component could significantly reduce the strength of the installation placement or array Any such condition severely reduces the safety of the installation and should be immediately corrected Use only hardware which is rated for the loading conditions of the installa tion and any possible short term unexpected overloading Never exceed the rating of the hardware or equipment 16 Consult a licensed Professional Engineer regarding physical equipment installation Ensure that all local state and national regulations regarding the safety and operation of flying equipment are understood and adhered to FCC Interference Statement NOTE This equipment has been tested and found to comply with the limits for a class B digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This
14. ions enable the powered MD series to solve more application challenges than competing designs Available in black or white they are the perfect solution for house of worship performing arts center and arena applications that demand flexible and excellent sounding system solutions All models are self powered using highly efficient class D amplifiers and high frequency switch mode power supplies AC line connection is fast and easy a locking quick disconnect Neutrik PowerCon ensures reliable AC mains connection while providing an easy to remove power cord for cabinet mobility Audio is input to the self powered loudspeaker via an XLR connector with an additional XLR output for daisy chaining Handles are provided on black colored enclosures while white colored enclosures are not equipped with handles Features vary by model so please refer to sales brochures for specific model information g 1 Filter Switch 6 Cooling Fan 2 Gain Adjuster 7 AC Mains Entrance PowerCon Receptacle 3 Signal and Clip Indicator LEDs 8 Power ON LED Indicator 4 Input and Output XLR connectors 9 Serial Number Plate 5 Handles only on black enclosures 10 Power Switch AC Mains Switch A NOTE Handles are provided on black colored enclosures only White colored enclosures are not equipped with handles Installation There
15. ons 3 Heed all warnings 4 Follow all instructions 5 WARNING To prevent fire or electric shock do not expose this equipment to rain or moisture Do not use this apparatus near water 6 Clean only with a dry cloth 7 Allow a minimum of 4 100mm clearance at cabinet back for convection cooling Keep anything that might restrict airflow away from the rear of the enclosure i e draperies fabric etc Do not block any ventilation openings This product contains an internal power amplifier that produces heat 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding plug has two blades and a grounding prong The wide blade or third prong are provided for your safety If the provided plug does not fit your outlet consult an electrician for the replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly plugs convenience receptacles and the point where they exit from the apparatus 11 Use only attachments accessories specified by QSC Audio Products Inc 12 Use only with hardware brackets stands and components sold with the apparatus or by OSC Audio Products Inc 13 Unplug the apparatus during lightning storms or when unused for long periods of t
16. qscaudio com Contact us at 800 854 4079 or visit our website at www gscaudio com 1675 MacArthur Blvd Costa Mesa CA 92626 USA Main Number 714 754 6175 or toll free USA only 800 854 4079 Customer Service 714 957 7150 or toll free USA only 800 772 2834 OSCE Copyright 2005 QSC Audio Products Inc QSC is a registered trademark of QSC Audio Products Inc QSC and the QSC logo are registered with the U S Patent and Trademark Office PowerCon is a registered trademark of Neutrik and the names of Neutrik products referenced herein are either trademarks and or service marks of Neutrik g All trademarks are the property of their respective Owners
17. right Red Flashes During operation bright flashing indicates clipping overdrive distortion This is normally due to excessive volume and will likely be accompanied by audible distortion If the speaker mutes repeatedly during peaks there may be a component fault AC power should be removed and the speaker serviced Continuous Half bright Light Indicates that the internal limiter is reducing gain due to prolonged clipping and or excessive temperature After several seconds of severe clipping the limiter will reduce power to protect the speaker and improve the sound This results in a steady half bright red indication Any further clipping will still result in bright flashes on top of the steady half bright indication When the program level is reduced the limiter will clear after several seconds and the red indicator will go out If the power module overheats the first response is to trigger limiting to reduce volume and limit further temperature rise This results in a steady half bright illumination that does not clear even after reducing program level It may take several minutes for temperature to drop and clear the limiter During this time the exposed heat sink will feel uncomfortably hot to the touch If overheating continues the amplifier will ultimately mute resulting in a full bright red indication When muting clears the amplifier will resume operation with thermal limiting still active until it further cools off Overheating is
18. rotection from the elements AC Mains AC Mains Connection Orient the PowerCon connector with the PowerCon socket located on the rear panel of the loud speaker It is keyed and will only fit into the socket when aligned properly Insert the connector fully and rotate clockwise until the locking mechanism engages The correct AC line voltage is shown on the serial number label on the rear panel Connecting to the wrong A line voltage may damage the amplifier or increase the risk of electric shock AC Mains Disconnection To remove the connector pull back on the metal locking tab and turn the connector counterclockwise until it stops then pull to remove the connector form the socket Power Switch 3 Push in on the top of the rocker switch to apply AC mains power to the powered loudspeaker Push in on the bottom of the rocker switch to turn the powered loudspeaker off When turned on the blue Power indicator LED and the red LIM limiter indicator LED will illuminate after a few sec onds the red LIM indicator will extinguish PWR LED Power Indicator The blue LED Power indicator will illuminate when the AC Power switch is in the ON position the AC K 7 mains power cord is connected properly and the AC mains are functioning properly The LED Power indi on cator will extinguish when the AC Power switch is in the off position or AC mains power has been removed from the loudspeaker If the Power indicator does
19. s and provide improved clarity in the mid fre quencies 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 Check input connections and audio source for signal If the red LIM LED illuminates refer to the LIM indicator section below Abnormal Indication If the green SIG LED illuminates with no signal input there may be system oscillations or some other malfunction Disconnect the input or fully reduce the gain If the green SIG LED remains on the amp may need servicing LIM Limiter Indicator LED Continuous Bright Red Light The red LIM indicator alerts the user to several abnormal conditions within the MD loud speaker 100Hz LO CUT FULL RANGE Indicates protective mute mode The speaker normally passes through muting for several seconds after applying power after which the light should go out and sound should be heard If the speaker enters Mute during operation it has either overheated or developed a fault Overheating should correct itself within 1 2 minutes after which sound should resume See below for a full explanation of thermal protection Short periods of muting indicate a component fault In this case AC power should be removed and the speaker serviced Momentary B
20. s mounting recess being sure the gasket is properly positioned 4 Install the eight horn retaining screws Do not fully tighten the screws until all have been installed and finger tightened This will help to prevent the chance of cracking the horn Fully tighten the retaining screws 5 Position and align the grill assembly for reinstallation Install four retaining screws on one side do not fully tighten carefully bend the grill around the front of the enclosure and install the remaining four retaining screws It is easier to have an assistant hold the grill in place while installing the final four screws Grill retaining screws are to be torqued to 30 35 pound inch 0 35 0 40 kilogram meter Horn assembly retaining screws are to be torqued to 40 pound inch 0 46 kilogram meter 10 Specifications Frequency Response 3dB Frequency Range 10dB Maximum Peak SPL Nominal coverage H x V as installed at factory Directivity Index Directivity Factor Acoustic Crossover Freq Transducer Description Amp Power Input Sensitivity Input Headroom Clipping Input Connector Impedance Output Connector Controls Indicators and Adjustments Protection Agency certs AC Power Requirements AC Power Connector Dimensions Weight Finish and Grill Notes MD FP122 64r MD FP122 94r MD FP122 124r 50 17 5k Hz 55 20k Hz 55 18 6k Hz 50 18k Hz 50 20 5k Hz 50 20k Hz 128dB 128dB 128dB 60 x40 90 x40 120 x
21. with powder coated perforated steel grill 1 Maximum Peak SPL Calculated by adding the loudspeakers sensitivity 1W at 1m to the peak power dBw of the amplifier provided 2 Coverage Included angle between 6dB points plus X minus Y dB 500 to 3 2k Hz taken at ISO preferred one third octave intervals or for an otherwise specified frequency range 3 Directivity Index DI Difference between on axis SPL and average SPL considering all axes for the specified coverage range Dl 10 log Q 4 Directivity Factor Q Directivity index expressed as a power ratio O 10 exp DI 10 5 Amplifier Power The maximum sustained power at less than 1 clipping averaged over the intended frequency range 6 Input Sensitivity The sine wave input voltage required to reach amplifier clipping measured within the frequency range used to determine Maximum Peak SPL with the gain on normal and no gain reduction due to limiting 7 Input Headroom Clipping Maximum input voltage 8 Input Connector Impedance RF shunt capacitance should not reduce impedance by more than 30 at 20k Hz 9 TBD to be determined data not available at time of printing 11 Warranty 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 improper installation and or use of this loudspeaker product OSC Audio Products 3 Year Limited Warrant
22. y QSC Audio Products Inc QSC guarantees its products to be free from defective material and or workmanship for a period of three 3 years from date of sale and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use provided the unit is returned to our factory or one of our authorized service stations via pre paid transportation with a copy of proof of purchase i e sales receipt This warranty provides that the examination of the return prod uct must indicate in our judgment a manufacturing defect This warranty does not extend to any product which has been subjected to misuse neglect accident improper installation or where the date code has been removed or defaced OSC shall not be liable for inci dental and or consequential damages This warranty gives you specific legal rights This limited warranty is freely transferable during the term of the warranty period Customer may have additional rights which vary from state to state In the event that this product was manufactured for export and sale outside of the United States or its territories then this limited war ranty shall not apply Removal of the serial number on this product or purchase of this product from an unauthorized dealer will void this limited warranty Periodically this warranty is updated To obtain the most recent version of QSC s warranty statement please visit www
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