SRM450v2 Active Sound ReinfoRceMent SPeAKeR uSeR'S MAnuAl IMPORTANT SAFETY INSTRUCTIONS 1. Readtheseinstructions. 2. Keeptheseinstructions. 3. Heedallwarnings. 4. Followallinstructions. 5. Donotusethisapparatusnearwater. 6. Cleanonlywithadrycloth. 7. Donotblockanyventilationopenings.Installinaccordancewiththe manufacturer'sinstructions. 8. Donotinstallnearanyheatsourcessuchasradiators,heatregisters, stoves,orotherapparatus(includingamplifiers)thatproduceheat. 9. Donotdefeatthesafetypurposeofthepolarizedorgrounding-type plug.Apolarizedplughastwobladeswithonewiderthantheother. Agrounding-typeplughastwobladesandathirdgroundingprong. Thewidebladeorthethirdprongareprovidedforyoursafety.Ifthe providedplugdoesnotfitintoyouroutlet,consultanelectricianfor replacementoftheobsoleteoutlet. 10.Protectthepowercordfrombeingwalkedonorpinchedparticularlyat plugs,conveniencereceptacles,andthepointwheretheyexitfromthe apparatus. 11.Onlyuseattachments/accessoriesspecifiedbythemanufacturer. 12.Useonlywithacart,stand,tripod,bracket,ortable specifiedbythemanufacturer,orsoldwiththeapparatus.Whenacartisused,usecautionwhenmoving thecart/apparatuscombinationtoavoidinjuryfrom tip-over. 13.Unplugthisapparatusduringlightningstormsorwhen unusedforlongperiodsoftime. 14.Referallservicingtoqualifiedservicepersonnel.Servicingisrequired whentheapparatushasbeendamagedinanyway,suchaspowersupplycordorplugisdamaged,liquidhasbeenspilledorobjectshave fallenintotheapparatus,theapparatushasbeenexposedtorainor moisture,doesnotoperatenormally,orhasbeendropped. 15.Donotoverloadwalloutletsandextensioncordsasthiscanresultina riskoffireorelectricshock. 16.Thisapparatusshallnotbeexposedtodrippingorsplashing,andno objectfilledwithliquids,suchasvasesorbeerglasses,shallbeplaced ontheapparatus. 17.ThisapparatushasbeendesignedwithClass-Iconstructionandmust beconnectedtoamainssocketoutletwithaprotectiveearthingconnection(thethirdgroundingprong). 18. TheMAINSplugoranappliancecouplerisusedasthedisconnect device,sothedisconnectdeviceshallremainreadilyoperable. PORTABLE CART WARNING CAUTION AVIS 19.NOTE:Thisequipmenthasbeentestedandfoundtocomplywith thelimitsforaClassBdigitaldevice,pursuanttopart15oftheFCC Rules.Theselimitsaredesignedtoprovidereasonableprotection againstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates,uses,andcanradiateradiofrequencyenergyand,if notinstalledandusedinaccordancewiththeinstructions,maycause harmfulinterferencetoradiocommunications.However,thereisno guaranteethatinterferencewillnotoccurinaparticularinstallation.If thisequipmentdoescauseharmfulinterferencetoradioortelevision reception,whichcanbedeterminedbyturningtheequipmentoffand on,theuserisencouragedtotrytocorrecttheinterferencebyoneor moreofthefollowingmeasures: · Reorientorrelocatethereceivingantenna. · Increasetheseparationbetweentheequipmentandthe receiver. · Connecttheequipmentintoanoutletonacircuitdifferentfrom thattowhichthereceiverisconnected. · Consultthedealeroranexperiencedradio/TVtechnicianfor help. CAUTION:Changesormodificationstothisdevicenotexpressly approvedbyLOUDTechnologiesInc.couldvoidtheuser'sauthorityto operatetheequipmentunderFCCrules. 20.ThisapparatusdoesnotexceedtheClassA/ClassB(whicheveris applicable)limitsforradionoiseemissionsfromdigitalapparatusas setoutintheradiointerferenceregulationsoftheCanadianDepartment ofCommunications. ATTENTION--Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant las limites applicables aux appareils numériques de class A/de class B (selon le cas) prescrites dans le réglement sur le brouillage radioélectrique édicté par les ministere des communications du Canada. 21.Exposuretoextremelyhighnoiselevelsmaycausepermanenthearing loss.Individualsvaryconsiderablyinsusceptibilitytonoise-induced hearingloss,butnearlyeveryonewilllosesomehearingifexposedto sufficientlyintensenoiseforaperiodoftime.TheU.S.Government's OccupationalSafetyandHealthAdministration(OSHA)hasspecified thepermissiblenoiselevelexposuresshowninthefollowingchart. AccordingtoOSHA,anyexposureinexcessofthesepermissiblelimits couldresultinsomehearingloss.Toensureagainstpotentiallydangerousexposuretohighsoundpressurelevels,itisrecommendedthatall personsexposedtoequipmentcapableofproducinghighsoundpressurelevelsusehearingprotectorswhiletheequipmentisinoperation. Earplugsorprotectorsintheearcanalsorovertheearsmustbeworn whenoperatingtheequipmentinordertopreventpermanenthearing lossifexposureisinexcessofthelimitssetforthhere: Duration, perdayin hours 8 6 4 3 2 1.5 1 SoundLevel dBA,Slow Response 90 92 95 97 100 102 105 TypicalExample Duoinsmallclub SubwayTrain Veryloudclassicalmusic DavescreamingatSteveabout deadlines Loudestpartsatarockconcert RISK OF ELECTRIC SHOCK. DO NOT OPEN RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL ATTENTION: POUR EVITER LES RISQUES DE CHOC ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIE. AVIS: POUR EVITER LES RISQUES D'INCENDIE OU D'ELECTROCUTION, N'EXPOSEZ PAS CET ARTICLE A LA PLUIE OU A L'HUMIDITE 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 persons. Le symbole éclair avec point de flèche à l'intérieur d'un triangle équilatéral est utilisé pour alerter l'utilisateur de la présence à l'intérieur du coffret de "voltage dangereux" non isolé d'ampleur suffisante pour constituer un risque d'éléctrocution. The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Le point d'exclamation à l'intérieur d'un triangle équilatéral est employé pour alerter les utilisateurs de la présence d'instructions importantes pour le fonctionnement et l'entretien (service) dans le livret d'instruction accompagnant l'appareil. 0.5 110 0.25orless 115 Correct disposal of this product.Thissymbolindicatesthatthisproductshouldnotbedisposedofwithyourhouseholdwaste,accordingtotheWEEEDirective(2002/96/EC)andyournationallaw.Thisproduct shouldbehandedovertoanauthorizedcollectionsiteforrecyclingwasteelectricalandelectronicequipment(EEE).Improperhandlingofthistypeofwastecouldhaveapossiblenegativeimpactontheenvironmentand humanhealthduetopotentiallyhazardoussubstancesthataregenerallyassociatedwithEEE.Atthesametime,yourcooperationinthecorrectdisposalofthisproductwillcontributetotheeffectiveusageofnatural resources.Formoreinformationaboutwhereyoucandropoffyourwasteequipmentforrecycling,pleasecontactyourlocalcityoffice,wasteauthority,oryourhouseholdwastedisposalservice. Contents IMPORTANT SAFETY INSTRUCTIONS .......................................2 INTRODUCTION.......................................................................4 HOOKUP DIAGRAMS ..............................................................6 Quick Start ......................................................................6 REAR PANEL DESCRIPTION ......................................................8 1. IEC Socket ....................................................................8 2. POWER Switch ............................................................8 3. POWER ON Indicator ..................................................8 4. TIMED TURNOFF ..........................................................8 5. THERMAL Indicator ......................................................8 6. CONTOUR ...................................................................8 7. LOW CUT .....................................................................8 8. LEVEL ...........................................................................9 9. SIGNAL PRESENT Indicator ..........................................9 10. PEAK Indicator ..........................................................9 11. INPUT Connector .......................................................9 12. THRU Connector ........................................................9 CONNECTIONS......................................................................10 PLACEMENT ...........................................................................10 Room Acoustics .............................................................10 RIGGING ..............................................................................11 THERMAL CONSIDERATIONS .................................................12 AC POWER CONSIDERATIONS ..............................................12 AC Power Distribution ...................................................12 SERVICE INFORMATION ........................................................14 Troubleshooting.............................................................14 Repair............................................................................16 CARE AND MAINTENANCE....................................................16 SPECIFICATIONS ....................................................................17 BLOCK DIAGRAM ..................................................................18 LIMITED WARRANTY..............................................................19 Please write the serial number for your SRM450v2 here (or for both SRM450v2s if you have two) for future reference (i.e., insurance claims, tech support, return authorization, etc.): Loudspeaker 1 Loudspeaker 2 Purchased at:___________________________________ Date of Purchase:_____________ Don't forget to visit our website at www.mackie.com for more information about this and other Mackie products. Part No. SW0617 Rev. D 0/09 ©2007-2009 LOUD Technologies Inc. All Rights Reserved. INTRODUCTION Thank you for choosing LOUD Technologies' Mackie active sound reinforcement loudspeakers. The SRM50v is a redesigned version of our popular SRM50 active loudspeaker. With its newly designed ClassD Fast-Recovery amplifiers, high-output compression driver, and new 1" neodymium woofer, it produces an even smoother sound than the original. SRM means Sound Reinforcement Monitor, and the SRM50v truly produces a studio quality sound in a sound reinforcement speaker. Our design goal was to build a sound reinforcement speaker with: 1. High precision, high output, and accurate playback. . Very wide, smooth dispersion of mid and high frequencies. . Ergonomically correct physical design for easy transport and set up. Through the combined resources of our top-notch mechanical and analog engineers, and our experienced transducer engineers at EAW, we were able to achieve our design goals in every aspect. The result is a sound reinforcement system equally at home in a concert setting, in the studio, impromptu concerts on the studio roof, in the cinema, or in a home theater. · Each amplifier has its own compressor circuit that acts when the input signal is large enough to cause clipping, distortion and excessive voice coil heat. The compressor will automatically decrease the input signal to a safe level. The compressor in the low-frequency amp works independently from that in the high-frequency amp. · The low-frequency amp uses a servo feedback loop which senses the current flowing in the woofer coil. This controls the low-frequency response and maintains low distortion at high output levels. · The low-frequency amplifier also has a sweeping filter. This will automatically move the low cut-off frequency up or down depending on the amplifier output. For example, if the amplifier is below clipping, the low-frequency cutoff point is 55 Hz. As it approaches clipping, this shifts up smoothly to 10 Hz, providing more power reserves and less distortion before clipping. This happens quickly and continuously, protecting the amplifier and the woofer and reducing any noticeable distortion. Warning: Although the amplifiers have these protection circuits, you must still make sure the PEAK light is not blinking continuously. If it is, turn down your mixer faders, or preamplifier gain, or turn down the SRM50v LEVEL control. The Transducers The SRM50v active speakers feature a 1-inch highpower low-frequency woofer with a -inch voice coil and neodymium magnet, and a 1.75-inch titanium diaphragm high-output ceramic compression driver. This high-frequency driver is mounted on an acoustically non-resonant exponential waveguide, providing a wide, controlled dispersion and precise reproduction of the critical upper mid-range and high frequencies. The result is an unbelievably smooth off-axis response that allows everyone in the audience to experience the same high-resolution audio no matter where they are seated. The Crossover The built-in electronic crossover is a dB/octave Linkwitz-Riley des ...