Owners Manual
Contents
1. POWERED STUDIO series MONITORS Owners Manual UbL PROFESSIONAL N A x LSR305 5 8 Studio Monitor Studio Monitor Thank you for your purchase of JBL 3 Series Powered Studio Monitors To receive important information as it becomes available please take a moment to register your 3 Series Speakers now Click the link or go to www jblpro com 3series Section 1 Important Safety Instructions 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with dry cloth 7 Do not block any ventilation openings Install in accordance with manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus that produce heat 9 Do not defeat the safety purpose of the grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug with two blades and a third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs conveni2. Who Pays For What JBL will pay all labor and material expenses for all repairs covered by this warranty Please be sure to save the original shipping cartons because a charge will be made if replacement cartons are requested Payment of shipping charges is discussed in the next section of this warranty How To Obtain Warranty Performance If your JBL product ever needs service write or telephone us at JBL Incorporated Attn Customer Service Department 8500 Balboa Boulevard PO Box 2200 Northridge California 91329 818 893 8411 We may direct you to an authorized JBL Service Agency or ask you to send your unit to the factory for repair Either way you ll need to present the original bill of sale to establish the date of purchase Please do not ship your JBL product to the factory without prior authorization If transportation of your JBL product presents any unusual difficulties please advise us and we may make special arrangements with you Otherwise you are responsible for transporting your product for repair or arranging for its transportation and for payment of any initial shipping charges However we will pay the return shipping charges if repairs are covered by the warranty Limitation of Implied Warranties ALLIMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE LENGTH OF THIS WARRANTY EXCLUSION OF CERTAIN DAMAGES JBL S LIABILITY IS LIMITED TO THE RE
3. PANEL Includes input connectors power connector and user controls 8 ENCLOSURE 9 PADS Pads supplied with each speaker are user installed Input Panel 10 XLR INPUT Connect professional equipment using an XLR connector 11 6 mm 74 INPUT Connect equipment using a 6 mm 74 balanced or unbalanced connector 12 INPUT SENSITIVITY SWITCH Set this switch to 4 dBu to protect from overload when connecting to professional equipment and sources with very high output 13 LOW FREQUENCY TRIM Allows boost or attenuation of low frequency output by 2 dB 14 HIGH FREQUENCY TRIM Allows boost or attenuation of high frequency output by 2 dB 15 VOLUME CONTROL Use this control to set the maximum listening level 16 POWER RECEPTACLE Connection for the power cord 17 POWER SWITCH Activates power for the system Balanced Input 12 40 4dBu 10dBV Serial No LE UA B 14 JBL PROFESSIONAL Designed and Northridge CA U S A Engineered HARMAN International Industries Inc in U S A Power AC 100 240 V 50 60 Hz 17 Audio Connections Connect signal sources to either the XLR or 6 mm 74 INPUT CONNECTORS Connect only a single signal source to the speaker using either INPUT CONNECTOR OR the 6 mm 74 TRS INPUT CONNECTOR Do not connect multiple signal sources to multiple sources of the same speaker simultaneously Section 5 System Connections LEFT CHANNEL S
4. Sensitivity 10 dBV input HF Driver Size LF Driver Size HF Driver Power Amp LF Driver Power Amp HF Trim Control LF Trim Control AC Input Voltage Enclosure Contruction Enclosure Finish Baffle Construction Baffle Finish Dimensions H x W x D Weight Display Carton H x D x W Shipping Carton H x D x W Shipping Weight 12 LSR305 43 Hz 24 kHz 1675 Hz 4th order acoustic Linkwitz Riley 108 dB SPL C Weighted 9 23 dBu 1x XLR 1 x TRS Balanced 92 dB 1m 25 mm 1 127 mm 5 41 W Class D 41 W Class D 2 dB 0 2 dB 4 4 kHz 2 dB 0 2 dB 115 Hz 100 240 VAC 10 50 60 Hz 15 mm 5 8 in MDF Matte Black PVC Injection molded structural ABS Metallic Black Acrylic Paint 298 mm x 185 mm x 251 mm 11 75 in x 7 28 in x 9 88 in 4 6 kg 10 12 lbs 354 mm x 299 mm x 244 mm 13 93 in x 11 77 in x 9 6 in 373 mm x 315 mm x 260mm 14 69 in x 12 4 in x 10 22 in 6 kg 13 2 Ibs LSR308 37 Hz 24 kHz 1800 Hz 4th order acoustic Linkwitz Riley 112 dB SPL C Weighted 9 23 dBu 1 X XLR 1 x TRS Balanced 92 dB 1m 25 mm 1 203 mm 8 56W Class D 56W Class D 2 dB 0 2 dB 4 4 kHz 2 dB 0 2 dB 115 Hz 100 240 VAC 10 50 60 Hz 15 mm 5 8 in MDF Matte Black PVC Injection molded structural ABS Metallic Black Acrylic Paint 419 mm x 254 mm x 308 mm 16 5 in x 10 in x 12 1 in 8 6 kg 18 9 Ibs 473 mm x 358 mm x 312 mm 18
5. are equipped with balanced XLR and 6 mm 74 TRS inputs for connection to professional computer audio interfaces mixing consoles and audio production equipment as well as unbalanced consumer audio products including personal music players consumer audio receivers and audio visual equipment Connect professional equipment with balanced outputs to the XLR or 6 mm TRS input of the speaker using balanced signal cables 3 Series speakers are equipped with an INPUT SENSITIVITY SWITCH The switch is set to the 10dB setting when it ships from our factory This setting will be best for many applications However you can set the switch to the 4 dB setting When connecting 3 Series speakers to professional equipment with 4 dB nominal output level set the INPUT SENSITIVITY SWITCH to the 4 dB setting To determine the nominal output level of the connected equipment consult the documentation supplied with the connected equipment If you notice the sound is distorted or you find it is too loud set this switch to the 4 dB setting Power Connections The 3 Series speakers incorporate a universal power supply allowing these to be used domestically and internationally The ground terminal of the IEC plug is required by wiring codes and regulations and must always be connected to the electrical installation safety ground Making Sound After connections are made reduce the output level of the audio source mixing console computer recording system
6. its packaging we recommend the following procedure which will prevent damage of the high freguency transducer located near the top of the cabinet on the front of the speaker Remove the outer shipping carton if one exists Place the inner carton on the floor with the top facing upwards Open the top of the box Without removing the internal packaging end cap gently rotate the carton so the open end rests on the floor and the bottom of the carton is facing you Gently lift the carton allowing the speaker and protective end cap to slide out of the carton and remain on the floor Save the cartons and use the above procedure in reverse when you want to repack the units for shipment Placement 3 Series speakers are designed to deliver exceptional imaging in any room To get the most out of your speakers follow these recommendations Attach the four supplied pads to each speaker to protect the finish on the bottom of the speaker Position each speaker in a vertical orientation with the tweeter on the top Vertical orientation eliminates phase shift and cancellation of freguency response that occurs when the distance of the woofer to the ear is different from the distance of the tweeter to the ear Angle the speakers so the high freguency transducer in each speaker is aimed directly towards the ear of the listener Ideally the LSR308 and LSR305 speakers should be placed on suitable speaker stands rather than on the work surface T
7. or preamp to minimum Set the 3 Series POWER SWITCH to the ON position After a short delay the POWER INDICATOR on the front of each speaker will illuminate and the speakers will be ready to reproduce audio signals Power on connected audio equipment Slowly advance the volume control of connected audio equipment to achieve a suitable listening level and enjoy Section 4 LSR305 and LSR308 Powered Studio Monitors Front View Back View 2 6 pes UB 4 5 7 9 Features 1 HIGH FREOUENCY TRANSDUCER Tweeter Reproduces high freguency signals 2 WAVEGUIDE The specially designed Image Control Waveguide enhances imaging and optimizes the blend of direct and reflected sound in the room ensuring neutral sound at the mix position 3 POWER INDICATOR llluminates when power is connected and the POWER SWITCH is set to ON Note after setting the power switch to ON there is a short delay prior to illumination of the LED 4 LOW FREQUENCY TRANSDUCER Woofer Reproduces low frequency content of the input signal 5 DUST DOME Protects the inner circuit of the woofer This self repairing dust dome is resistant to dents caused by fingers or external objects 6 LOW FREQUENCY PORT The patented Slip Stream Port Works in conjunction with the low frequency transducer to provide accurate low frequency performance 7 INPUT
8. 6 in x 14 in x 12 2 in 491mm x 372 mm x 326 mm 19 3 in x 14 6 in x 12 8 in 10 kg 22 Ibs Section 8 Contact Information JBL PROFESSIONAL Mailing Address JBL Professional 8500 Balboa Blvd Northridge CA 91329 Shipping Address JBL Professional 8500 Balboa Blvd Dock 15 Northridge CA 91329 Do not return product to this address without first obtaining prior authorization from JBL Customer Service Monday through Friday 8 00am 5 00pm Pacific Coast Time in the U S A 800 8JBLPRO 800 852 5776 www jblproservice com Product Registration Register your product online at www jblpro com registration On The World Wide Web www jblpro com Professional Contacts Outside the USA Contact the JBL Professional Distributor in your area A complete list of JBL Professional international distributors is provided at our U S A website www jblpro com En Dehors des Etats Unis Contacter votre Distributeur JBL Professional Une liste compl te de nos distributeurs internationaux est disponible sur le site web www jblpro com International Wenden Sie sich an Ihre rtliche JBL Professional Vertretung Eine vollstandige Liste der internationalen JBL Vertretungen finden Sie auf unserer Website unter www jblpro com Fuera de los Estados Unidos Comun quese con el distribuidor de JBL Professional de su zona En nuestro sitio web www jblpro com encontrar una lista completa de los distribuidores de JBL Inte
9. PAIR OR REPLACEMENT AT OUR OPTION OF ANY DEFECTIVE PRODUCT AND SHALL NOT INCLUDE INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS AND OR DO NOT ALLOW THE EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE JBL Professional 8500 Balboa Boulevard Northridge CA 91329 USA Visit us online at www jblpro com 14 Hear the truth y B L by HARMAN Part Number 365438 001 Rev B 081313
10. PEAKER LINEAR SPATIAL REFERENCE Computer Audio Interface 16 d jaa uy 9o eo o K eo boloo 890 o good 0009690 rode ide to die Computer Audio System RIGHT CHANNEL SPEAKER Disc Player lll o O 2 97 MP3 Player a Electronic Musical Instrument 3 Series Studio Monitors can be connected to a wide range of audio sources such as those shown above Stereo reproduction these audio sources is accomplished by connecting the left output of the source to one INPUT of the LEFT 3 Series Studio Monitor Connect the right ouput of the source to the INPUT of the RIGHT 3 Series Studio Monitor 10 Section 6 Appendix Trouble Shooting If there is no sound from your speakers check these settings Make sure a signal source is connected and producing sound Make sure the power POWER INDICATOR is illuminated on the front of the speaker Make sure the VOLUME CONTROL is not set to the full counter clockwise position Confirm the power cable is connected and the POWER SWITCH is set to the ON position If the above measures do not correct the problem please contact JBL Professional Customer Service 11 Section 7 Appendix Specifications Frequency Range Crossover Maximum Peak SPL Maximum Peak Input Level 10 dBV 4 dBu Input Connectors Input
11. ence recepticle and the point where the power cord connects to the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Unplug this apparatus during lightning storms or when unused for long periods of time 13 Refer all servicing to gualified service personnel Servicing is reguired when the apparatus has been damaged in any way including power supply cord or plug is damaged liguid 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 14 The appliance coupler of the power supply cord is used as the ultimate disconnect device from the mains The appliance coupler shall remain readily operable 15 The apparatus shall be connected to mains socket outlet with a protective earthing connection WARNING e To reduce the risk of fire or electrical shock do not expose the apparatus to rain or moisture e The apparatus shall not be exposed to dripping or splashing and no objects filled with liguids such as vases shall be placed on the apparatus As with any electronic product use care not to spill liguids into any part of the system Liguids can cause a failure and or a fire hazard Explanation of Graphic Symbols The exclaimation point within an eguilateral triangle is intended to alert the users to the presence of important operating and mainte nance servicing instructions in the litera
12. his will reduce resonance and deterioration of low frequency performance that occurs through the speaker s mechanical coupling with the work surface For optimum imaging the left speaker and the right speaker should be placed symmetrically in the room so each speaker is the same distance from adjacent walls and reflective surfaces The speakers should be placed so the position of the listener and the two speakers form an eguilateral triangle Adjusting the distance between the speakers will affect the guality of bass heard at the listening position You can experiment with speaker placement to find the placement that produces the preferred bass response imaging and when listening to stereo material produces a strong phantom center in which vocals and some instruments seem to originate from a point between speakers The listening distance can be determined according to your preference the acoustics of your room and the maximum SPL Sound Pressure Level you want to hear at the listening position You can find the speaker s maximum SPL at 1 Meter in the Specifications Section at the end of this manual Each doubling of listening distance will reduce the SPL at the listening position by 6 dB in an acoustically absorptive room but only 3 or 4 dB in an acoustically reflective room Place the speakers so the distance D between the speakers is the same as the distance to the listening position Audio Connections The 3 Series Speakers
13. ically shielded high freguency transducers with optimally damped materials to improve transient response and minimize distortion By reducing distortion in the lower operating range where the ear is most sensitive these transducers reduce ear fatigue Balanced XLR and 1 4 connectors a dented level attenuator to allow interface to a broad range of signal sources The 4 dB 10 dB input sensitivity switch allows connection of the speakers to high output professional eguipment without danger of input overload High Freguency and Low Freguency Trim controls in the LSR308 and LSR305 allow adjustment of freguency response to preference or to compensate for acoustically reflective or absorptive listening environments JBL Professional Reliability Prior to becoming a production ready design each 3 Series model is subjected to JBL s tough 100 hour power test in which the speaker is reguired to play continually at full output for 100 hours without failure This demanding test ensures your 3 Series speakers will deliver years of reliable performance To get the most out of your JBL 3 Series Studio Monitors please review this owner s manual and keep it on hand for future reference Also please register your new speakers at www jblpro com registration Section 3 Setting Up Your System Each speaker includes the following items One 3 Series Studio Monitor One Power Cord Four peel off rubber pads Unpacking When removing a speaker from
14. ing professional applications All 3 Series models incorporate JBL Professional transducer and network technologies to provide accurate frequency response exceptional low frequency extension and high SPL capability JBL LSR Linear Spatial Reference design ensures greater accuracy at the mix position in acoustically varied work spaces and production environments Additionally each speaker is equipped to interface with a range of signal sources including high output professional equipment JBL LSR Linear Spatial Reference Design Because listening environments vary JBL designed the 3 Series system using LSR Linear Spatial Reference design criteria that improve accuracy at the listening position in a broad range of rooms The key to accuracy is ensuring not just the on axis sound but also the reflected sound reaching the mix position is neutral While most manufacturers take only a single on axis measurement of the speaker s performance Linear Spatial Reference design criteria requires 72 measurements 360 degrees around the speaker yielding more than 1 200 times more data This data is used in the design of critical system components enabling JBL to engineer complete systems that deliver smooth off axis response The result clear accurate sound at the listening position in any room 3 Series Image Control Wave Guide JBL s revolutionary Image Control Waveguide gives the LSR305 and LSR308 remarkable imaging a wide sound stage and a solid phant
15. nterference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Important Safety INStructioNs i 3 5 Setting Up Your Systerm eco aterert tette eta te aah xe ERR e Rte e d 6 Whats mended Zosen nar detto Ue ei 6 Bierzo dom 6 Placement uude eec eec i eder a eer eek ecd re d reed deed ede 6 Audio Connections ii eiu le tr da eie t e hs 7 Power eet A Ren 7 Making Sound ee epe tte mere me i e ted PR e die 7 LSR305 and LSR308 Powered Studio Monitors Front and Rear VIews erede tee eme eo 8 Input Banel cui iii iii Graie Do Bde eo ae 9 Audio e 9 Systems Conrnectloris eet e e tie eee DIR ee 10 Appendix Trouble Shooting 11 Appendix Specifications 12 JBL Service Contact Information 13 Product Warranty Information eene enne 14 Section 2 Introduction Congratulations on your purchase of JBL Professional 3 Series Studio Monitors These studio monitors meet JBL s high standards for accuracy and long term reliability in demand
16. om center Subtle details can be heard even in a dense mix As an added benefit incorporating this wave guide 3 Series models give you a broad sweet spot in your work space so you don t have to be seated directly in front of the speakers to hear accurate natural and open sound 3 Series Models include a range of features to meet the needs of demanding audio production applications LSE305 and LSR308 Models include Low freguency magnetically shielded transducers eguipped with 1 5 voice coils and robust motor structures to provide excellent low frequency performance By reducing thermal related effects the 3 Series Studio Monitors sound the same at low medium and high levels The woofers are magnetically shielded to prevent interference with magnetically sensitive displays and eguipment The woofer s self repairing dust dome is resistant to dents caused by fingers or external objects e JBL s Patented Slip Stream low frequency port design that works in concert with the woofer to produce deep bass response at all playback levels The double flared shape of the port is precisely engineered for greater low freguency extension and reduced turbulence Bi amplified Design with individual power amplifiers for the Low Freguency and High Freguency Transducers The design utilizes efficient high output Class D integrated power amplifiers to provide high SPL Sound Pressure Level for demanding production applications Soft dome magnet
17. rnational 13 Section 9 Warranty Information The JBL Limited Warranty on professional loudspeaker products except for enclosures remains in effect for five years from the date of the first consumer purchase JBL amplifiers are warranted for three years from the date of original purchase Enclosures and all other JBL products are warranted for two years from the date of original purchase Who Is Protected By This Warranty Your JBL Warranty protects the original owner and all subsequent owners so long as A Your JBL product has been purchased in the Continental United States Hawaii or Alaska This Warranty does not apply to JBL products purchased elsewhere except for purchases by military outlets Other purchasers should contact the local JBL distributor for warranty information and B The original dated bill of sale is presented whenever warranty service is required What Does The JBL Warranty Cover Except as specified below your JBL Warranty covers all defects in material and workmanship The following are not covered Damage caused by accident misuse abuse product modification or neglect damage occurring during shipment damage resulting from failure to follow instructions contained in your Instruction Manual damage resulting from the performance of repairs by someone not authorized by JBL claims based upon any misrepresentations by the seller any JBL product on which the serial number has been defaced modified or removed
18. ture accompanying the product The lightning flash with the arrowhead symbol within an eguilateral triangle is to alert the user to the presence of insulated dangerous voltage within the products en closure that may be of sufficient magnatude to constitute a risk of electric shock gt gt to humans CAUTION TO REDUCE THE RISK RISK OF ELECTRIC SHOCK OF ELECTRONIC SHOCK DO NOT ut REMOVE COVER NO USER DO NOT EXPOSE TO RAIN OR MOISTURE SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment 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 inter ference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the i
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