JBL STUDIO™ SERIES L8400/230, Black Ash
Contents
1. www jbl com 2005 Harman International Industries Incorporated All rights reserved JBL and Harman International are trademarks of Harman International Industries Incorporated registered in the United States and or other countries H A Harman International Company Part No 354038 001 DTS is a registered trademark of DTS Inc Dolby and Pro Logic are registered trademarks of Dolby Laboratories All features and specifications are subject to change without notice STUDIO L SERIES L8400P OWNER S GUIDE READ FIRST Important Safety Precautions CAUTION DO NOT OPEN CAUTION To reduce the risk of electric shock do not remove cover or back No user serviceable parts inside Refer servicing to qualified service personnel CAUTION To prevent electric shock do not use this polarized plug with an extension cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure 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 The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanyin2. digital processing where the receiver processor is equipped with a subwoofer output or a volume controlled preamp line level output Use RCA type interconnects to connect the line level subwoofer outputs on your receiver or amplifier to the line level inputs on the sub Left Front Center Subwoofer IMPORTANT Make sure that the LFE Normal toggle switch is in the LFE position This will bypass the sub woofer s normal low pass filter reducing the possibility of signal degradation and more accurately reproducing the program materials However if your receiver is passing a full range signal through its sub woofer output place the tog gle switch in the Normal position which will activate the low pass filter and protect woofer IMPORTANT Make sure that the LFE Normal toggle switch is in the Normal position This will activate the subwoofer s low pass filter protecting the sub woofer from possible damage and enabling it to operate most efficiently by reproducing only the low frequency materials that it is best at handling NOTE If your receiver or amplifier only has one sub Right Front Line Level In Receiver Left Subwoofer Right Front Out Front a Cae l Center Left Surround Back Surround Back Right Surround Left Right Surround oe Se ee he Left Surround Surround Bac
3. fall into such power Figure A Example of Antenna Grounding as per National Electrical Code ANSI NFPA 70 a ag lines or circuits When installing an outside antenna system extreme care should be taken to keep from touching such power lines or cir cuits as contact with them might be fatal 19 Do not overload wall outlets extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock 20 Never push objects of any kind into this product through openings as they may touch dangerous volt age points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the product 21 The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids such as vases shall be placed on the apparatus 22 Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards Refer all servicing to qualified serv ice personnel 23 When replacement parts are required be sure the service tech nician has used replacement parts specified by the manufacturer or that have the same characteristics as the original part Unauthorized substitutions may result in fire elec tric shock or other hazards 24 Upon completion of any service or repairs to this product ask the service technician to perform safety checks to determine that the prod uct is in pr
4. SPECIFICATIONS Model Description Amplifier Power RMS Peak Dynamic Powert Frequency Response 3dB Low Pass Crossover Frequencies Low Frequency Transducer Baffle Enclosure Inputs Outputs Dimensions HxWxD Weight L8400P 12 300mm 600 Watt high performance compact powered subwoofer 600 Watts 1200 Watts 22Hz Low pass crossover frequency 50Hz 150Hz Continuously adjustable 12 300mm PolyPlas cone with rubber surround and cast aluminum chassis HeatScape motor structure Symmetrical Field Geometry SFG oversized fiberglass voice coil magnetic shorting ring Low diffraction IlsoPower Sealed Gold plated 5 way binding post speaker level left and right line level switchable to LFE Gold plated 5 way binding post speaker level 150Hz high pass when using speaker level connection 16 1 2 15 1 2 without feet x 15 1 2 x 15 1 2 419mm 394mm without feet x 394mm x 394mm 58 Ib 26 4kg tThe Peak Dynamic Power is measured by recording the highest peak to center voltage produced by the power amplifier with its limiters disabled across the output of a resistive load equal to minimum impedance of the transducer using a 50Hz sine wave burst 3 cycles on 17 cycles off HIA PRO SOUND COMES HOME JBL Consumer Products 250 Crossways Park Drive Woodbury NY 11797 USA 8500 Balboa Boulevard Northridge CA 91329 USA 2 route de Tours 72500 Chateau du Loir France
5. ance for your specific listening conditions without TROUBLESHOOTING If you used the high level speaker inputs and there is no sound from any of the speakers e Check that the receiver amplifier is on and a source is playing e Check that the powered subwoofer is plugged into an active electrical outlet and is switched on e Check all wires and connec tions between the receiver amplifier and the speakers Make sure all wires are con nected Make sure none of the speaker wires are frayed cut or punctured or touching each other e Review proper operation of your receiver amplifier If there is low or no bass output e Make sure the connections to the left and right Speaker Inputs have the correct polarity and e Make sure that the sub woofer is plugged into an active electrical outlet and switched on e Adjust the crossover point e Flip the Phase Control switch to the opposite position e If you are using a Dolby Digital DTS receiver or processor make sure that the subwoofer and bass manage ment adjustments on the receiver processor are set up correctly e Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass having to move your speakers If at some time in the future you happen to rearrange your listening room and move your speakers you should experi ment with the Phase switch in both positions and leave it in the position that max
6. at meet their needs and expectations JBL Consumer Products recommends experimenting with the positioning of your subwoofer to obtain the most pleasing results in your room One technique that can help you find the ideal subwoofer location is to temporarily place the subwoofer near the main listening location Then move around the room and determine where you hear the most pleasing bass performance This would then be the ideal location for the subwoofer speakers identically positive on the speaker to positive on the amplifier and nega tive on the speaker to negative on the amplifier Wiring out of phase results in thin sound weak bass and a poor stereo image With the advent of multichan nel surround sound systems connecting all of the speakers in your system with the cor rect polarity remains equally important in order to preserve the proper ambience and directionality of the program material DOLBY DIGITAL OR DTS OR OTHER DIGITAL SURROUND MODE CONNECTION RECEIVER SUBWOOFER R LFE OUT LINE LEVEL IN L Use this installation method for Dolby Digital DTS or other dig ital surround processors Use either the left or right line level input jack for the Low Frequency Effects channel it doesn t matter which one you choose DOLBY PRO LOGIC Use this installation method for Dolby Pro Logic applica tions not Dolby Digital DTS or other
7. g the appliance 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 a dry cloth 7 Do not block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat reg isters 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 type plug has two blades and a third grounding prong The wide blade or the third prong are 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 partic ularly at plugs convenience recep tacles and the point where they exit from the apparatus 11 Only use attachments acces sories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart appa ratus combination to avoid injury from tip over 2 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service
8. imizes bass performance If you used the line level inputs and there is no sound from the subwoofer e Check that the receiver amplifier is on and a source is playing e Check that the powered subwoofer is plugged into an active electrical outlet and is switched on e Check all wires and connections between the receiver amplifier and the subwoofer Make sure all wires are connected Make sure none of the wires are frayed cut or punctured or touching each other e Review proper operation of your receiver amplifier e Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass e Make sure that you have configured your receiver processor so that the sub woofer LFE output is on
9. k Right Right Surround the subwoofer from possible damage Connect this jack to the LFE output or subwoofer output on your receiver or amplifier Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure that you have con figured your surround sound processor for Subwoofer On Also remember to configure your receiver for 5 1 6 1 or 7 1 channel operation as appropriate NON DIGITAL LINE LEVEL woofer output jack then you will need to use a Y connector not included Plug the male end of the Y connector into your receiver or amplifier s subwoofer output jack and connect each of the two female ends to separate RCA type interconnects Finally plug the RCA type intercon nects into the line level inputs on the subwoofer Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure your receiver or processor is correctly config ured to indicate that the sub woofer is On Note for advanced users If your receiver processor has a built in low pass crossover filter for the subwoofer output you may switch the LFE Normal toggle switch to the LFE position to bypass the subwoofer s internal crossover DOLBY PRO LOGIC NON DIGITAL SPEAKER LEVEL Left Front Use this installation method for Dolby Pro Logic applica tions not Dolby Digital DTS or other digital processing where the receiver pr
10. ocessor does not have a subwoofer output or a volume controlled preamp line level output Connect your receiver or amplifier s front left and right speaker terminals to the left and right terminals on the subwoofer that are marked Speaker Level In Connect the left and right terminals on the subwoofer that are marked Speaker Level Out to the corresponding terminals on the back of your front left and right speakers Connect your receiver or amplifier s center surround and surround back speaker terminals to the corresponding terminals on the back of your center and surround speakers Left Front Left Surround Right Front Center Subwoofer Speaker Speaker Level In Level Out O Receiver Surround Back Surround Back Left Right Surround Back Right Right Front Right Surround OPERATION Power Move the Master Power switch to the On position to use the L8400P subwoofer Level Control The subwoofer Level Control adjusts the volume of the subwoofer relative to the rest of the system Proper level If you will be away from home for an extended period of time or if the subwoofer will not be adjustment depends on sev eral variables such as room size subwoofer placement type of main speakers and used switch the Master Power switch to the Off position position Adjust the subwoofer level so that the volume
11. of the bass information is pleasing to you SONY D Subwoofer Level ka D Crossover Adjustments The Crossover Frequency Control determines the highest frequency at which the subwoofer reproduces sounds If your main speakers can comfortably reproduce some low frequency sounds set this control to a lower frequency setting between 50Hz and 100Hz This will concentrate the subwoofer s efforts on the ultradeep bass sounds required by today s films and music If you are using smaller bookshelf speakers that do not extend to the lower bass fre quencies set the low pass crossover control to a higher setting between 120Hz and 150Hz This control is not used when the LFE switch is in the LFE position Studio L Series L8400P 0000 On S m Phase Control 0 fiov Phase The Phase Control deter mines whether the sub woofer s pistonlike action moves in and out in phase with the main speakers or opposite the main speakers There is no correct or incor rect setting Proper phase adjustment depends on sev eral variables such as sub woofer placement and lis tener position Adjust the Phase switch to maximize bass output at the listening position Remember every system room and listener is different There are no right or wrong settings this switch offers the added flexibility to adjust your subwoofer for optimum per form
12. oper operating condition 25 The product should be mounted to a wall or ceiling only as recom mended by the manufacturer Antenna Lead In Wire Ground Clamp Antenna Discharge Unit NEC Section 810 20 Grounding Conductors NEC Section 810 21 Electric Service Equipment Ground Clamps Power Service Grounding Electrode System a NEC Art 250 Part H THANK YOU FOR CHOOSING JBL For more than 50 years JBL has been involved in every aspect of music and film recording and reproduction from live performances to the recordings you play in your home car or office We re confident that the JBL system you have chosen will provide every note of enjoy ment that you expected and that when you think about purchasing additional audio equipment for your home car or office you will once again choose JBL Please take a moment to regis ter your product on our Web SPEAKER PLACEMENT e Asa general rule bass response increases as a subwoofer is placed closer to a wall Therefore bass output is maximized when the subwoofer is placed in a corner e It is also recommended that the subwoofer be positioned along the same wall as the front loudspeakers Low frequency sounds are nor mally omnidirectional meaning the listener can t tell where they are generated from However frequencies between 75Hz and 150Hz can be localized espe cially at higher volume levels Positioning your subwoofer as recommended will pro
13. 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 Do not use attachments not recommended by the product manufacturer as they may cause hazards 16 This product should be operated only from the type of power source indicated on the marking label If you are not sure of the type of power supply to your home consult your product dealer or local power company For products intended to operate from battery power or other sources refer to the operating instructions 17 If an outside antenna or cable system is connected to the product be sure the antenna or cable sys tem is grounded so as to provide some protection against voltage surges and built up static charges Article 810 of the National Electrical Code ANSI NFPA 70 provides information with regard to proper grounding of the mast and support ing structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna discharge unit connection to grounding electrodes and requirements for the grounding electrode See Figure A 18 An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits or where it can
14. vide the most natural soundstage and imaging from your loudspeaker system Remember that these are just guidelines Since every listening room is different JBL strongly SPEAKER CONNECTION When we designed the L8400P powered subwoofer our goal was to offer the user the best possible performance com bined with the most flexible and complete installation options Please look over the following three examples to determine which description best matches your system and follow the corresponding hookup instructions To use the binding post speaker terminals with bare wire unscrew the collar until the hole through the center post is visible under the collar Insert the bare end of the wire through the hole in the post then screw the collar back down until the connection is tight The holes in the center of the collars are intended for banana type connectors To comply with European CE certification these holes are blocked with plastic inserts at the point of manufacture To use banana type connectors requires the removal of the inserts Do not remove these inserts if you are using the product in an area covered by the European CE certification Speakers and electronics have corresponding positive and negative terminals It is important to connect both site at www jbl com This enables us to keep you posted on our latest advancements and helps us to better under stand our customers and build products th
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