USER MANUAL - Pro Audio Centre
Contents
1. a 11 Operation Manual page 3 audio INTRODUCTION Thank you for choosing sound reinforcement speakers The PSR 12A is an active two way loudspeaker capable of extremely high sound pressure levels and designed to give you the best performance of any loudspeaker in its class and price range Our design goal was to build a sound re inforcement speaker with 1 High precision high output and accu rate playback 2 Very wide smooth dispersion of mid and high frequencies active 3 Ergonomically correct physical design for easy transport and set up Through the combined resources of our top notch mechanical and analog enginee rs we were able to achieve our design go als in every respect Theresult is a sound reinforcement system equally at home in a concert setting inthe studio in the cinema orin ahome theater The Transducers The PSR 12A active speakers feature 12 high power low frequency woofer and a 1 75 inch titanium diaphragm high output precision compression driver This high frequency driver is mounted on anac oustically non resonant exponential wave guide providing a wide controlled disper sion and precise reproduction of the criti cal upper mid range and high frequencies The result is unbelievably smooth off axis response that allows everyone in the audience to experience the same high resolution audio no matter where they are seated Each driver has been specif2. tus has beendamaged in anyway such as powersupply cord orplug is damaged liquid has been spilled or objects havefallen into the apparatus the apparatus has beenexp osed to rainor moisture doesnot operate normally or has beendropped 14 Toreduce the riskof fire orelectric shock do not expose thisapparatus to rain or moisture 13 2 Powered Speaker System CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN TO PREVENT ELECTRIC SHOCK DO NOTREM OVE TOP OR BOTTOM COVERS NO USERSE RVICEABLE PARTSINSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL WATCH FOR THESE SYMBOLS A The lightning bolttriangle is used to alert the user to the risk of electric shock A The exclamation pointtriangle is usedto alert theuserto impo rtant operating ormaintenance instructions Operation Manual Powered Speaker System Table of Contents Important Safety Instructions and seh 2 Table dde eb 3 i Io ua MEET 4 5 Hookup Diagrams scettr ced ye rep 6 7 Rear Panel DESC riptliOM rs sit sented tet sd et ev dede hast 8 Block Ist aii st foedam ert Specifications 2459 Oded AEG REG eR ake dues Added beat d 9 10 Apr 4525 np ed ae gee Gee
3. 10 C to45 C 14 Fto 113 F for the LFamplifier Transducers Low Frequency Transducer Diameter Voice Coil Diameter Frequency Range Sensitivity 1W 1M Nominal Impedance Power Handling Rated Power 300 watts Rated THD lt 0 1 Cooling Convection Extrusion Design Class Hi Frequency Power Amplifier Rated Power 50 watts Rated THD lt 0 1 Cooling Convection Extrusion Design Class AB Rated power iscontinuous rms wattage into transducer srated impedance 1kHz for the HF amplifier and 100 Hz 12 in 300mm 3 in 75mm 45Hz 3kHz 9848 4ohms 300 watts program High Frequency Transducer Diaphragm Diameter Diaphragm Material Frequency Range Sensitivity 1W 1M Nominal Impedance Power Handling Operation Manual 1 75 in 44 5mm Titanium 1kHz 20kHz 106dB 8ohms 50 watts program page 9 Powered Speaker System audio PSR 12A SPECIFICATIONS Physical Properties Height 24 2in 615mm Width 16 4 in 416mm Depth 14 in 556mm Weight 55 Ih 25kg Since we are always striving to our productshetter by incorporating new and improved materials components and manufacturing methods we reserve the rightto change thesespecifications at anytime without notice page 10 Operation Manual Powered Speaker System NOTES Operation Manual page 11
4. audio USER MANUAL PSR 12A Active Professional Two Way Sound Reinforcement Loudspeaker This manual does not include all of the details of design production or variations of the equipment Nor does it cover every possible situation which may arise during installation operation or maintenance The information provided in this manual was deemed accurate at the publication date Www prolight co uk 2209 Important Safety Instructions 1 Read these instructions 2 Keep these instructions 3 Heed allwarnings 4 Follow allinstructions 5 Do notuse this apparatus near water 6 Clean onlywith a drycloth 7 Do notblock any ventilation openings Install in accordance withthe manufacturer s instr uctions Do notinstall near anyheat sources suchas radiators heat exchangers stoves or otherap paratus that produce heat 9 Please ensure that this apparatusis correctly earthed at alltimes 10 Protectthe power cordfrom being walked on or trapped particularly atplugs and thepoin t where theyexit from the apparatus 11 Only useattachments accessories specified by the manufacturer 12 Use onlywith a cart stand bracket ortable specified by the manufacturer or sold with the apparatus Whena cart isused use ca ution when moving the cart apparatus com bination to avoidinjury from tip over Referall servicing to qualified service perso nnel Servicing is required whenthe appara
5. gh to prevent unwanted vibrations in the cab inet It has built in points for hanging and a socket in the bottom for mounting on a tripod stand Although it is an exceptional choice for portable sound system use The asymmetrical trapezoidal design of the cabi net makes it easy to use as a floor wedge for stage monitor applications Operation Manual pe audio The Active Advantage There area number of advantages to using an active speaker system overa passive loudspeaker The internal crossover is active and its low power circuitry operates on line level signals It does not waste speaker level power like a passive crossover with large coils caps andresistors The input signals arecrossed over before theyreach the amplifiers soeach amplifier only receives the correct frequency range for its driver The amplifiers are designed specifically for these speaker load impedances There is no guesswork as to what load each amplifier has to drive sothey can provide maximum acoustic output from the speakers yet minimize the danger of speaker damage due to overdriving The connecting wires betweenthe amplifier outputs and thedrivers are kept to a minimum sothe damping factor of the amplifier is not compro mised by the resistance of long speaker cables In addition all the power from the amplifieris transferred directly to the drivers with no speaker cable losses The acoustic sum of the outputs from
6. ically desig ed by our engineers for optimum perform ance in the lightweight high strength ca binet page 4 Powered Speaker System W Series Power Amplifiers PSR 12A 0ur exclusive design uses low negative feedback yet allows the amplifie rs to maintain low distortion and stability and to quickly recover when driven into cli pping The amplifiers include the followingfeat ures e The low frequency amplifier produces up to 800 watts peak 300 continuous before clipping e The high frequency amplifier produces up to 100 watts peak 50 continuous before clipping e Each amplifier has its own compressor circuit that acts whenthe input signal is large enough to cause clipping disto rtion and excessive voice coil heat The compressor will automatically decrease the input signal toa safe level The compressor in the low frepuency amp works independently from that in the high frequency amp e The low frequency amp uses servo feed back loop which senses the current flo wing in the woofer coil This controls the low frequency response and maintains low distortion at high output levels e The low frequency amplifier also has a seeping filter This will automatically move the low cut off frequency upor down depending on the amplifier output Operation Manua Powered Speaker System The Cabinet PSR 12A cabinet was designed to be the strongest moulded composite cabinet on the planet This material is rigid enou
7. m Speaker System Power 350W 4 Power 350W www prolight co uk io 5 wuiu prolight co uk Operation Manual page 7 Powered Speaker System audio REAR PANEL DESCRIPTION Treble clip Bass Control Bass clip Treble Control o Active Indicator Line Volume Control Microphone Input 1 N Master Volume Control t o LINE VOL MASTER VOL o o9 Microphone Volume 1 Line Input Jack Microphone Input 2 Mix Input Jack LINE INPUT MIX OUTPUT o o LAY audio PSR 12A Active Two Way Voltage Selector ea IEC Socket Microphone Volume 2 Power Switch CE o 9 www prolight co uk Grounded Screw Fuse PSR 12A BLOCK DIAGRAM MIC 1 INPUT MUSIC ENGINE LOW AMP MIC 2 INPUT LINE INPUT OF MIX OUTPUT HI AMP page 8 Operation Manual Powered Speaker System PSR 12A SPECIFICATIONS System Specifications Frequency Response 3dB 50Hz 18kHz Frequency Range 10dB 40Hz 20kHz Max SPL Long term 1m 124dB Max SPL Peak 1m 127dB Horizontal Coverage 80 Vertical Coverage 60 Crossover Linkwitz Riley 24dB octave 2 2kHz Input Type Balanced Differential Input Impedance 20kohms Sensitivity Line OdBu Mic 32dBu Maximum Input Level 18dBu Low Cut Frequency 30HZ Second order filter Operating Temperature Range Power Amplifiers Low Frequency Power Amplifier
8. the two drivers is optimized electronic ally as well as physically so the output response is flatter The presence of active circuits within the speaker cabinet allow the designer to add on extra details such as high quality mic line input section and optional accessory modules In short all the complex interconnect ed components in the system are designed to workin harmony with each other to pro duce the best possible sound page 5 Powered Speaker System audio HOOKUP DIAGRAMS PSR 12A STEREO OPERATION WITH A MIXER LINE VOL MASTER VOL BASS LINE VOL MASTER VOL GND PIN2 PSR 12A 230 PSR 12A Active Two Way Active Two Way Speaker System Speaker System Power 350W c Poureri350W cp www prolight co uk www prolight co uk Left Line level Right Line level output output page 6 Operation Manual Powered Speaker System HOOKUP DIAGRAMS PSR 12A USINGA MICROPHONE AND THE THRU CONNECTION For microphone connections you can daisy chain up to two 12 usingthe MIX OUTPUT jacks as shown Take great careto point any microphon es away from the PSR 12A otherwise you Dynamic may get feedback Microphone N 4 ES 10 P o D TREBLE LINE VOL MASTER VOL o E 6 y O 2 mm M PSR 12A 20 PSR 12A Active Two Way Active Two Way Speaker Syste
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