JBL NORTHRIDGE™ SERIES E250PCH/230, cherry
Contents
1. NORTHRIDGE E SERIES E150P E250P OWNER S GUIDE READ FIRST Important Safety Precautions CAUTION RISK OF ELECTRIC SHOCK DONOT 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 products 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 accompanying 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 suchas radiators heat registers stoves or other appara tus including amplifiers that produce h2. Connect these jacks to the LFE output or subwoofer output on your receiver or amplifier Note If your receiver or ampli fier has only one subwoofer outputjack you may connect the subwoofer output on your receiver preamplifier to either the left or right line level input on the subwoofer lt makes no difference which jack you choose Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure that you have configured your surround sound processor for Subwoofer On or LFE On The front center and surround speakers should be set to Small or Large depending on their size and frequency response Consult your receiver s or processor s owner s manual RECEIVER PREAMPLIFIER Subwoofer Output LFE 2 LEVEL O Max _ re NORMAL PHASE 6 180 CROSSOVER FREQUENCY Si N LEVEL O Max Min LFE e NORMAL PHASE 180 50Hz 150Hz CROSSOVER FREQUENCY R OPERATION Power When the unit is plugged in and the power switch is on and no signal is received the LED on the top of the unit will turn red When a signal is present the LED will turn green Level Control The subwoofer Level Control adjusts the volume of the subwoofer relative to the rest of the system Proper level adjustment depends on sev eral variables such as room Crossover Adjustments CROS
3. A type interconnect cables to connect the line level subwoofer outputs on your receiver or amplifier to the line level inputs on the subwoofer IMPORTANT Make sure that the LFE toggle switch on the subwoofer is in the Normal position Do not use the LFE position with Dolby Pro Logic only processors Note If your receiver or amplifier has only one sub woofer output jack then you may connect the subwoofer output on your receiver pre amplifier to either the left or right line level input on the subwoofer It makes no differ ence which jack you choose Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure your receiver or processor is config ured so 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 then the LFE switch should be set to the LFE position to bypass the subwoofer s internal crossover RECEIVER Subwoofer Out Digital Receiver Processor LFE Connection Use this installation method for Dolby Digital DTS or other digital surround processors that have bass management programming or for analog receivers processors that have a filtered subwoofer output IMPORTANT M ake sure that the LFE toggle switch on the subwoofer is in the LFE position Use the line level input jacks for the Low Frequency Effects channel
4. S 150 Watts Peak Dynamic Powert 250 Watts Driver 10 PolyPlas Inputs Line Level switchable to LFE and Speaker Level with 5 way binding posts Low Pass Frequency Variable from 50Hz to 150Hz Frequency Response 27Hz Low pass crossover setting Dimensions HxWxD 17 3 4 x 12 1 4 x 14 1 2 451mm x 311mm x 368mm Weight 33 5 Ib 15 2kg E250P 250 Watts 550 Watts 12 PolyPlas Line Level switchable to LFE and Speaker Level with 5 way binding posts Variable from 50Hz to 150Hz 25Hz Low pass crossover setting 19 3 4 x 14 3 8 x 16 1 2 502mm x 365mm x 419mm 43 Ib 19 5kg t The Peak Dynamic Power is measured by recording the highest center to peak voltage measured 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 HM PRO SOUND COMES HOME J BL Consumer Products 250 Crossways Park Drive Woodbury NY 11797 8500 Balboa Boulevard Northridge CA 91329 www jbl com 2003 Harman International Industries Incorporated J BLis a registered trademark of Harman International Industries Incorporated H A Harman International Company Part No 350883 001 Trademarks of Dolby Laboratories DTS is a registered trademark of Digital Theater Systems Inc All features and specifications are subject to change without notice
5. SOVER FREQUENCY sone 150 He OFF POWER 60Hz Northridge E Series CAUTION MAME Note It will take several min utes for the LED to turn from green to red after the input signal to the subwoofer is removed Due to J BL s unique high output high efficiency amplifier design power con size subwoofer placement type of main speakers and position Adjust the subwoofer level so that the volume of the bass information is pleasing to you The Crossover Frequency Control determines the highest frequency at which the sub woofer reproduces sounds If your main speakers can com fortably 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 sumption is minimal when the subwoofer is not receiving a signal Of course the sub woofer can be turned off whenever desired if you do not wish to leave it in auto standby mode Phase Control 0 Far Phase The Phase Control determines whether the subwoofer s pis ton like action moves in and out in pha
6. c 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 Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other haz ards Refer all servicing to quali fied service personnel 22 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 electric shock or other hazards 23 Upon completion of any service or repairs to this product ask the service technician to perform safety checks to determine that the product is in proper operating condition 24 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 NEC Art 250 Part H THANK YOU For more than 50 years J BL 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 J BL sys
7. ct polarity and e Make sure that the sub woofer is plugged into an active electrical outlet and switched on e Adjust the crossover point 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 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 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 maximizes bass performance If you used the line level inputs and there is no sound from the subw oofer 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 M ake sure all wires are connected M ake 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 SPECIFICATIONS E150P Amplifier Power RM
8. e type of power source indicated on the marking abel If you are not sure of the ype of power supply to your home consult your product dealer or ocal power company For prod ucts intended to operate from bat ery power or other sources refer o the operating instructions 17 If an outside antenna or cable system is connected to the prod uct be sure the antenna or cable system is grounded so as to pro vide some protection against volt age 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 supporting structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna discharge unit connec tion to grounding electrodes and Figure A Example of Antenna Grounding as per National Electrical Code ANSI NFPA 70 requirements for the grounding electrode See Figure A 18 An outside antenna system should not be located in the vicin ity of overhead power lines or other electric light or power cir cuits or where it can fall into such power lines or circuits When installing an outside antenna sys tem extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal 19 Do not overload wall outlets extension cords or integral con venience receptacles as this can result in a risk of fire or electri
9. eat 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 par ticularly at plugs convenience receptacles and the point w here they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus 2 When a cartis used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 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 dam aged liquid has been spilled or objects have fallen into the appa ratus 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 oper ated only from th
10. or the subwoofer Refer to the connection dia gram for guidance Twist together the leads at one end of the speaker wires that you have designated for the left front speaker and for To terminal on left speaker To terminal of left input on subwoofer the left high level inputs on the subwoofer Insert the joined twisted wires into the left front terminal on your receiver amplifier Connect the free end of the lead for the left front speaker to the ter minal on the back of the speaker Connect the free end of the lead for the left input on the subwoofer to the left binding post terminal Repeat this process for the connections for the left front Left Front Center speaker and left input on the subwoofer and then for the and connections for the right front speaker and right high level inputs on the sub woofer Connect your receiver or amplifier s center and sur round speaker terminals to the corresponding terminals on the back of your center and surround speakers Right Front ene To front left lt XO O H terminal on receiver amplifier Analog Receiver Processor Line Level Connections Use this installation method with an analog receiver processor that does not have digital processing or bass management and that is equipped with a full range subwoofer output or a volume controlled preamp line level output Use RC
11. rew the collar until the hole through the center postis 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 Speakers and electronics termi nals have corresponding positive and negative terminals It is important to connect both speakers identically positive on the speaker to positive on the amplifier and negative on the speaker to negative on the amplifier Wiring out of phase results in thin sound weak bass and a poor stereo image Web site at www jbl com This enables us to keep you posted on our latest advance ments and helps us to better understand our customers and build products that meet their needs and expectations J BL 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 NOTE The speaker level con nection method described on page 4 is not a preferred con nection and should only be resorted to if your receiver processor does not ha
12. se with the main speakers or opposite the main speakers There is no correct or incorrect setting Proper phase adjustment depends on several variables such as subwoofer placement and listener 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 formance for your specific listening conditions without having to move your speakers 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 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 M ake sure none of the speaker wires are frayed cut or punctured or touching each other except for the wires for the front left and right speakers which may be joined with the wires for the subwoofer at the receiver amplifier end only if you are using the speaker level connections as described on page 4 e Review proper operation of your receiver amplifier If there is low or no bass output Make sure the connections to the left and right Speaker Inputs have the corre
13. tem you have chosen will FOR CHOOSING J BL 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 J BL Please take a moment to register your product on our SPEAKER PLACEMENT As a general rule bass response increases as a subwoofer is placed closer to a wall Therefore bass output is maximized when the subwoofer is placed ina corner Itis also recommended that the subw oofer 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 provide the most natural soundstage and imaging from your loudspeaker system Remember that these are just guidelines Since every listening room is different J BL strongly SPEAKER CONNECTION When we designed the E150P and E250P powered subwoofers our goal was to offer the user the best pos sible performance combined 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 unsc
14. ve a line level or subwoofer output The customer is responsible for proper connections and any damage to J BL or other equip ment due to improper connec tions will not be covered by your J BL warranty Consult with your BL dealer or an audio installation expert if you have any questions about how to connect your subwoofer using the speaker level inputs Analog Receiver Processor Speaker Level Connections Use this installation method only with an analog receiver processor that does not have digital processing or bass management and also does not have a subwoofer output ora volume controlled preamp line level output Connect the speaker wires for both your main left and right speakers and for the sub woofer to the same speaker terminals on your receiver or amplifier The wires may be joined by twisting together the bare ends of the two leads that will be connected to each terminal on the receiver amplifier as shown in the diagram This procedure should be done only four times involving a total of eight bare wire ends and only for those wire ends that are being con nected to the terminals on your receiver amplifier It is important that you avoid join ing any other wires Do not twist together wire ends that are being inserted into terminals on any speaker or on the subwoofer Do not twist together wire ends that will be used for any speakers other than the front left and right speakers
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