JL Audio E4300 User's Manual
Contents
1. Amplifier Inputs CH 1 Left CH 3 Left PreOuts Amplifier Status Channel 1 amp 2 Controls Filter Freq Hz Ghannel 3 amp 4 Controls Filter Freq Hz O O Input Sens Filter Mode o T 420 Input Sens Fiter Mode go a 490 Power Protect O TT 150 O TT ss 150 e Off HP LP sg Off HP LP 50 200 CH 3 amp 4 CH 384 Pre Outs Bass Boost Input From Input From O O LL Off On 182 Discrete 162 Sum Input Signals are summed to mono when Bass EQ is activated High Level Inputs OOO0OO O CH 2 Right CH 4 Right 1234 Remote Bass Port Q O7 18 JL AUDIO e4300 JL AUDIO e4300 19 LIMITED WARRANTY AMPLIFIERS USA JL AUDIO warrants this product to be free of defects in materials and workmanship for a period of ninety 90 days from the original date of purchase The warranty term is extended to two 2 years if installation is performed or approved by an authorized JL AUDIO dealer proof of installation or approval required on purchase receipt This warranty is not transferrable and applies only to the original purchaser from an authorized JL AUDIO dealer Should service be necessary under this warranty for any reason due to manufacturing defect or malfunction JL AUDIO will at its discretion repair or replace the defective product with new or remanufactured product at no charge Damage caused by the following is not covered under warranty accident misuse abuse prod2. JL AUDIO e4 4300 four channel full range amplifier owner s manual Thank you for purchasing a JL Audio amplifier for your automotive sound system Your amplifier has been designed and manufactured to exacting standards in order to ensure years of musical enjoyment in your vebicle For maximum performance and extended warranty coverage we highly recommend that you have your new amplifier installed by an authorized JL Audio dealer Your authorized dealer has the training expertise and installation equipment to ensure optimum performance from this product Should you decide to install the amplifier yourself please take the time to read this manual thoroughly so as to familiarize yourself with its installation requirements and setup procedures If you have any questions regarding the instructions in this manual or any aspect of your amplifiers operation please contact your authorized JL Audio dealer for assistance If you need further assistance please call the JL Audio Technical Support Department at 954 443 1100 during business hours Eastern Time Zone JL AUDIO PROTECT YOUR HEARING We value you as a long term customer For that reason we urge you to practice restraint in the operation of this product so as not to damage your hearing and that of others in your vehicle Studies have shown that continuous exposure to high sound pressure levels can lead to permanent irreparable hearing loss This and all other
3. 10 Connect the input cables to the amplifier 1 Connect the speaker wires to the amplifier 12 Carefully review the amplifiers control settings to make sure that they are set according to the needs of the system 13 Install the power wire fuse 40A for a single e4300 and reconnect the negative battery post terminal 14 Turn on the source unit at a low level to double check that the amplifier is configured correctly Resist the temptation to crank it up until you have verified the control settings 15 Make necessary adjustments to the input sensitivity controls to obtain the right overall output and the desired balance in the system See Appendix A page 14 for the recommended input sensitivity setting method 16 Enjoy the fruits of your labor with your favorite music JL AUDIO e4300 POWER CONNECTIONS Before installing the amplifier disconnect the negative ground wire from the vehicle s battery This will prevent accidental damage to the system the vehicle and your body during installation 12VDC Ground Remote e The e4300 s 12 VDC and Ground connections are designed to accept 8 AWG 4 AWG power wire 8 AWG is a minimum power wire size for this amplifier If you are installing the e4300 with other amplifiers and wish to use a single main power wire use 4 AWG or larger main power wire depending on the overall current demands of all the amplifiers in the system This 4 AWG or larger pow
4. If you are using the e4300 to drive a subwoofer system LP mode a component satellite speaker system HP mode or both 100 Hz is a good baseline Filter Freq Hz setting After properly adjusting the Input Sens as outlined in Appendix A page 14 you can fine tune the Filter Freq Hz control to achieve the desired system frequency response JL AUDIO e4300 BASS BOOST CONTROLS ats Amplifier Status Channel 1 amp 2 Co O Input Sens Filte Power Protect L Off CH 3 amp 4 CH Bass Boost Inpu Off On 182 Remote Bass Port 1 CH 3 amp 4 Bass Boost This switch allows the user to activate a 6 dB boost centered at 48 Hz for channels 3 amp 4 When the CH 3 amp 4 Bass Boost is activated the inputs to CH 3 Left and CH 4 Right are summed to create a mono signal The Filter Mode switch in the Channel 3 amp 4 section must be in the LP position for the bass boost to be functional 2 Remote Bass Port This port allows you to connect an optional remote boost knob sold separately JL Audio Model RBC 1 that can be mounted in the front of the vehicle With the RBC connected the boost is no longer limited to O or 6 dB allowing a range of O 12 dB of boost to be selected PRE OUTS The e4300 s Pre Outs connectors output unprocessed pass through left and right channel preamp level signals permitting connection of additional a
5. Once you have selected your desired configuration you can use the amplifier panel drawing on pages 18 amp 19 to mark the required switch positions for easy reference BI AMPLIFIED SYSTEMS Bi amplified systems are defined as systems in which separate amplifier channels drive low frequency LF and high frequency HF speakers and are separately filtered to send appropriate frequency ranges to each speaker system The most common application of bi amplification in mobile audio is to drive a subwoofer system from one or more amplifiers or channels and component speakers from separate amplifiers or channels The e4300 can be configured to drive a bi amplified system by itself or with a separate subwoofer amplifier BI AMPLIFIED SYSTEM WITH ONE e4300 In this configuration channels 3 amp 4 of the e4300 will drive subwoofers stereo 75W x 2 at 2Q or bridged 50W x at 4Q with low pass filtering Channels amp 2 will drive component speakers in stereo 5W x 2 at 2Q with high pass filtering Input connection options for a bi amplified system with one e4300 are as follows A No User Adjustability Required a basic source unit or processor with one pair of stereo outputs Input Connections a single pair of stereo source unit outputs connected to the CH I Left and CH 2 Right inputs of the e4300 select 1 amp 2 on the CH 3 amp 4 Input From switch Result the relative level of the LF and HF channels will
6. high power amplifiers are capable of producing such high sound pressure levels when connected to a speaker system Please limit your continuous exposure to high volume levels While driving operate your audio system in a manner that still allows you to hear necessary noises to operate your vehicle safely horns sirens etc SERIAL NUMBER In the event that your amplifier requires service or Is ever stolen you will need to have a record of the product s serial number Please take the time to enter that number in the space provided below The serial number can be found on the bottom panel of the amplifier and on the amplifier packaging Serial Number Power Left amp Right Status High Level Input Jacks Indicator Pg 6 pg 10 Channels 3 amp 4 Preamp Input Jacks __ e 6 Orr Amplifier Inputs CH 1 Let CE 3 ef PreOuts eese Level Inouts ER O O O 11234 CH 2 Right CH 4 Righ Protection Stat Remote 3ass ort INSTALLATION APPLICATIONS This amplifier is designed for operation in vehicles with 12V negative ground electrical systems Use of this product in vehicles with positive ground and or voltages other than 2V may result in damage to the product and will void the warranty This product is not certified or approved for use In aircraft Do not attempt to bridge the outputs of this amplifier with the outputs of a second amplifier including an i
7. hurt you Stupid Mistakes to Avoid e Check before drilling any holes in your vehicle to make sure that you will not be drilling through a gas tank brake line wiring harness or other vital vehicle system e Do not run system wiring outside or underneath the vehicle This is an extremely dangerous practice which can result in severe damage to your vehicle and person e Protect all system wires from sharp metal edges and wear by carefully routing them tying them down and using grommets and loom where appropriate e Do not mount the amplifier in the engine compartment under the vehicle on the roof or in any other area that will expose the amplifier circuitry to the elements JL AUDIO e4300 PRODUCT DESCRIPTION The JL Audio e4300 is a fourchannel full range amplifier utilizing patented Absolute Symmetry Class AB technology for all channels The e4300 can be operated with a wide variety of source units and system configurations TYPICAL INSTALLATION SEQUENCE The following represents the sequence for a typical amplifier installation using an aftermarket source unit Additional steps and different procedures may be required in some applications If you have any questions please contact your authorized JL Audio dealer for assistance 1 Disconnect the negative battery post connection and secure the disconnected cable to prevent accidental re connection during installation This step is not optional 2 Run power wir
8. and the other pair of the e4300 s channels to drive right channel speakers only EIMPORTANT When parallel connecting both positive and both negative high level input connections as described above make sure to connect negative wires to negative wires and positive wires to possitive wires 2 Left Right Channel Information VVhen bridged and fed by a stereo input a pair of the e4300 s channels will automatically combine the left and right channels into a summed mono left right channel This option is useful when using a pair of the e4300 s channels to drive a subwoofer system or a summed mono center channel JL AUDIO e4300 AMPLIFIER STATUS INDICATOR LIGHTS PROTECTION CIRCUITRY There are two status indicator lights on the input control end of the amplifier Remote Bass Port 1 Power Green lights to indicate that the amplifier is turned on and operating normally 2 Protect Red lights or flashes to indicate that the amplifier protection circurtry has been activated to prevent product failure a If the red Protect indicator lights steadily without flashing the amplifier has exceeded its safe operating temperature This causes the amplifier to shut off in order to protect its circuitry When the amplifiers temperature drops to a safe level the red Protect indicator will shut off and the amplifier will return to normal operation b If the red Protect
9. be fixed by the e4300 s Input Sens settings and will not be user adjustable from the front of the vehicle B Fade Subwoofer Level vs HF Level Required a source unit or processor with two pairs of stereo outputs Input Connections the first stereo pair source unit outputs Is connected to the CH I Left and CH 2 Right inputs of the e4300 The second stereo pair of source unit outputs is connected to the CH 3 Left and CH 4 Right inputs select Discrete on the CH 3 amp 4 Input From switch Result in this mode the user has the ability to fade or control the level of the LF channels relative to the HF channels via the source unit s fader control without exceeding the maximum clean output level set by each amplifier section s Input Sens controls C Subwoofer Level Control Only Required a source unit or processor with one pair of stereo outputs and dedicated subwoofer outputs Input Connections the main stereo pair of source unit outputs is connected to the CH I Left and CH 2 Right inputs of the e4300 The source unit s dedicated subwoofer output is connected to the CH 3 Left and CH 4 Right inputs select Discrete on the CH 3 amp 4 Input From switch Result in this mode the user has the ability to control the absolute level of the LF channels relative to the HF channels ma IMPORTANT Set the Input Sens in the Channel 3 amp 4 Cont
10. dentical one Chassis Ground Connector Pg 5 12 V Power Remote Turn On Connector Connector PLANNING YOUR INSTALLATION It is important that you take the time to read this manual and that you plan out your installation carefully The following are some considerations that you must take into account when planning your installation Cooling Efficiency Considerations The outer shell of your JL Audio amplifier is designed to remove heat from the amplifier circuitry For optimum cooling performance this outer shell should be exposed to as large a volume of air as possible Enclosing the amplifier in a small poorly ventilated chamber can lead to excessive heat build up and degraded performance If an installation calls for an enclosure around the amplifier we recommend that this enclosure be ventilated with the aid of a fan In normal applications fan cooling is not necessary Channels amp 2 Channels 3 amp 4 Speaker Outputs Speaker Outputs pg 9 Pg 9 pg 5 pg 6 12VDC Ground Remote Ch 11 a Oaa 2 Ch3 L Ch4 R 2Q min Ox rn O 20 m 20 m O Ch amp 2 Input Ch amp 2 Filter Ch 3 amp 4 Sensitivity Frequency Filter Mode Control Selector Selection Ps 7 Ch 1 amp 2 P87 Ch 3 amp 4_ P87 Ch 3 amp 4 Filter Frequency Input Sensitivity lifier Status Channel 1 amp 2 Controls F Iter q Hz Channel 3 amp 4 Controls Fittar Fr
11. e minimum 8 AWG from the battery location to the amplifier mounting location taking care to route it in such a way that it will not be damaged and will not interfere with vehicle operation Use 4 AWG or larger power wire and a power distribution block if additional amplifiers are being installed with the e4300 3 Connect power wire to the positive battery post Fuse the wire with an appropriate fuse block and connectors within 18 inches 45 cm wire length of the positive battery post This fuse is essential to protect the vehicle Do not install the fuse until the power wire has been connected to the amplifier 4 Run signal cables and remote turn on wire from the source unit to the amplifier mounting location 5 Run speaker wire from the speaker systems to the amplifier mounting location 6 Find a good solid metal grounding point close to the amplifier and connect the negative power wire to it using appropriate hardware Use the same size power wire as the wire connected to the 12V connection minimum 8 AWG no longer than 36 inches 90 cm from the amplifier to the ground connection point In some vehicles it may be necessary to upgrade the battery ground wire See page 5 for important notice 7 Securely mount the amplifier using the supplied screws 8 Connect the positive and negative power wires to the amplifier A fuse near the amplifier is not necessary 9 Connect the remote turn on wire to the amplifier
12. e user has the ability to fade the level of the subwoofer amplifiers input relative to the HF channels but cannot control front to rear fading of the HF channels The relative level of the front and rear HF channels will be fixed by the e4300 s Input Sens settings and will not be user adjustable from the front of the vehicle C Subwoofer Level Control Only Required a source unit or processor with left right and dedicated subwoofer outputs Input Connections The main stereo pair of source unit outputs is connected to the CH I Left and CH 2 Right inputs of the e4300 select 1 amp 2 on the CH 3 amp 4 Input From switch The source unit s dedicated subwoofer output is connected to the subwoofer amplifier inputs Result with this option the user has the ability to control the absolute level of the subwoofer channel relative to the HF channels but cannot fade the front and rear HF channels relative to each other IMPORTANT Set the subwoofer amplifiers Input Sens with the source units subwoofer level control set at 3 4 of full output D Front to Rear HF Fading and Subwoofer Level Control Required a source unit or processor with front and rear pairs of stereo outputs plus a dedicated subwoofer output Input Connections one stereo pair of source unit outputs is connected to the CH I Left and CH 2 Right inputs of the e4300 The second stereo pair of source unit outputs is co
13. ended 14 JL AUDIO e4300 APPENDIX B Precise Frequency Selection Chart FILTER FREQ AMP FILTER Detent Panel Actual Number Marking Freq Full counter clockwise 53 J a aae ceases ead 53 O2 aa BO aaa 53 J a a endear 53 OF e a soi 54 OO ade T AE 54 On e E ET 55 JJJ hirs 55 08 56 OF deci agate eeca dra vation gates ieee 56 Oh ae deve es eee ee 57 J E oe 58 J 59 J E e snes 62 J 60 65 J une ee en eats 65 J a oe 66 PAE ase kee eaaee sae 70 JJ teoee otek 73 J Gee veces 77 20 sewed BO 8l D E E A wae aces ees 84 EEE E 88 PE EOE 94 24 aaa IOI J 104 26 120 aa 15 Daea 118 DOr 4s stent ale a oe aca cers 28 DD eG 37 SO Jeena 146 J EEE EE 164 DA nee ONO prerii 77 DO A a taro 193 o EEEE 197 IO Fag ake E wee eens eee 209 DG pie as n taeeactn Sues es 213 OP sched E EE 216 BB 200 218 Cc e a er ee 225 Full clockwise 225 APPENDIX C e4300 Specifications GENERAL SPECIFICATIONS Recommended Fuse Value 40A Recommended Fuse Type AGU or MaxiFuse INPUT SECTIONS No of Inputs Two Stereo Pairs Input Type Differential noise cancelling with RCA jack inputs low level and multi pin jack high level Input Range 200mV 8V RMS AMPLIFIER SECTION Amplifier Topology Class AB with patented Absolute Symmetry dual N Channel MOSFET output design Power Supply Unregula
14. endent for each channel pair and must be adjusted based on input level and the impedance of the load on that pair of channels Specific Input Sens adjustment information is given in Appendix A page 14 el 1 amp 2 Controls Filter ens E Mode Off HP LP E ee ES 34 Jost ipi JEJE In 1 amp 2 Discrete 18 JL AUDIO e4300 AMPLIFIER CONTROLS Input Sensitivity These controls labeled Input Sens can be used to match the source unit s output voltage s to each input stage of the e4300 for maximum clean output Rotating an Input Sens control clockwise will result in higher sensitivity louder for a given input voltage Rotating an Input Sens control counterclockwise will result in lower sensitivity quieter for a given input voltage To properly set the amplifier for maximum clean output please refer to Appendix A page 14 in this manual After using this procedure you can then adjust any or all Input Sens levels downward if this is required to achieve the desired system balance Do not increase any Input Sens setting for any channel s of any amplifier in the system beyond the maximum level established during the procedure outlined in Appendix A page 14 Doing so will result in audible distortion and possible speaker damage Filter Controls Most speakers are not designed to reproduce the full range of frequencies audible by the human ear For this reason most speak
15. eq Hz O O Input Sans Fi zer Mode Power Protect EC 429 Input Sers Filter Mcde Q E CH HP LP 5 F 3864 CH 364 Pre Outs Bass Bcost Input From Input Fror Rote are summed ta mono when 3ass EQ s Dff Dn 1 amp 2 Discreze 2 Sum act vatec Ce j a Channels amp 2 Left amp Right Ch 3 amp 4 Pre Out Signal Preamp Input Jacks Preamp Output Bass Boost Selection Switch 6 acks On Off Switch 8 ps 6 J Jack for Ch 3 amp 4 ps 8 ps 8 pg 8 Remote Bass Input Selection Control Knob Switch pg 8 Pg 6 us Filter Mode _Indicator__ __ Selection Control Selector pg i ji an pg 7 pg 7 Of HP L JL AUDIO e4300 Bridged 4Q min sss i ll BIMPORTANT Mounting the amplifier upside down is strongly discouraged If mounting the amplifier under a seat make sure there is at least inch 2 5 cm of space above the amplifiers outer shell to permit proper cooling Safety Considerations Your amplifier needs to be installed in a dry well ventilated environment and in a manner which does not interfere with your vehicle s safety equipment air bags seat belt systems ABS brake systems etc You should also take the time to securely mount the amplifier using the supplied screws so that it does not come loose in the event of a collision or a sudden jolt to the vehicle 10 Ibs of aluminum traveling at 60 MPH will
16. er systems are comprised of multiple speakers each dedicated to reproducing a specific frequency range Filters are used to select which frequency range Is sent to each section of a speaker system The division of frequency ranges to different speakers can be done with passive filters coils and or capacitors between the amplifier outputs and the speakers which are acceptable and commonly used for filtering between mids and tweeters Filtering between subwoofer systems and satellite speaker systems is best done with active filters which cut off frequency content at the input to the amplifier Active filters are more stable than passive filters and do not introduce extraneous resistance which can degrade subwoofer performance The active filter built into each channel of the e4300 can be used to eliminate potentially harmful and or undesired frequencies from making their way through the amplifier sections to the speaker s This serves to improve tonal balance and to avoid distortion and possible speaker failure Correct use of these filters can substantially increase the longevity and fidelity of your audio system Channel 1 amp 2 Controls Filter Hz Channel 3 amp 4 Controls Filter Freq Hz 8 80 Input Sens Filter Mode gg 420 Input Sens Filter Mode 60 12C D 0 A Off HP LP so 200 Off HP LP 50 20 CH 384 CH 384 Pre Outs Bass Boost Input From Input From _ Off On 182 Discrete 162 Sum rt CH3 64 Input Sig
17. er wire should terminate into a distribution block mounted as close to the amplifiers as possible and should connect to the e4300 with 8 AWG 4 AWG power wire Please note that smaller AWG numbers mean bigger wire and vice versa 1 0 AWG is the largest 2 AWG is smaller then 4 AWG then 8 AWG etc To connect the power wires to the amplifier first back out the set screw on the top of the terminal block using the supplied 2 5 mm hex wrench Strip 1 2 inch 12 mm of insulation from the end of each wire and insert the bare wire into the terminal block seating it firmly so that no bare wire is exposed While holding the wire in place tighten the set screw firmly taking care not to strip the head of the screw The ground connection should be made using the same gauge wire as the power connection and should be kept as short as possible while accessing a solid piece of sheet metal in the vehicle The surface of the sheet metal should be sanded at the contact point to create a clean metal to metal connection between the chassis and the termination of the ground wire The use of a star washer to lock down the connection is advisable Any wires run through metal barriers such as firewalls must be protected with a high quality rubber grommet to prevent damage to the insulation of the wire Failure to do so may result in a dangerous short circuit mIMPORTANT Many vehicles employ small 10 AWG 6 AWG wire to ground the battery to
18. fier will drive the subwoofer system with low pass filtering 100 Hz is a good starting point Input connection options for a bi amplified system with one e4300 and a separate subwoofer amplifier are as follows A No User Adjustability Required a basic source unit or processor with one pair of stereo outputs Input Connections a single pair of stereo source unit outputs Is connected to the CH Left and CH 2 Right inputs of the e4300 select 1 amp 2 on the CH 3 amp 4 Input From switch Connect the subwoofer amplifier inputs to the preamp outputs of the e4300 Select 1 amp 2 on the Pre Outs Input From switch Alternatively the e4300 can receive its Input from the subwoofer amplifiers preamp output set to full range mode Result the relative level of the LF and front and rear HF channels will be fixed by the e4300 s Input Sens settings as well as the subwoofer amplifier s settings and will not be user adjustable from the front of the vehicle B Fade Subwoofer Level vs HF Level Required a source unit or processor with front and rear pairs of stereo outputs Input Connections one stereo pair of source unit outputs is connected to the CH I Left and CH 2 Right inputs of the e4300 select 1 amp 2 on the CH 3 amp 4 Input From switch The second stereo pair of source unit outputs is connected to the subwoofer amplifier inputs Result with this option th
19. heck the fuse not just visually but with a continuity meter It is possible for a fuse to have poor internal connections that cannot be found by visual inspection It is best to take the fuse out of the holder for testing If no problem is found with the fuse Inspect the fuse holder I GET A DISTORTED ATTENUATED SOUND COMING OUT OF THE SPEAKER S MY AMPLIFIER TURNS ON BUT THERE IS NO OUTPUT Check the speaker wires for a possible short either between the positive and negative leads or between either speaker lead and the vehicle s chassis ground If a short is present you will experience distorted and or attenuated output The Protect light may also illuminate in this situation It may be helpful to disconnect the speaker wires from the amplifier and use a different set of wires connected to a test speaker Check the nominal load impedance to verify that each channel of the amplifier is driving a load equal to or greater than 2Q 4Q bridged Check the input signal and input signal cables to make sure signal is present at the Amplifier Inputs and the cables are not pinched or loose It may be helpful to try a different set of cables and or a different signal source to be sure MY AMPLIFIER SHUTS OFF ONCE IN A WHILE USUALLY AT HIGHER VOLUMES Check your voltage source and grounding point The power supply of the e4300 will operate with charging system voltages down to 8V Shutdown problems at highe
20. indicator flashes intermittently the protection circurtry has detected a short circuit or a dangerously low impedance connected to the amplifier output s Connecting the speaker outputs to an impedance lower than 2Q stereo 4Q bridged will cause this protection mode to activate The amplifiers output may cycle on and off when this protection mode is activated When the problem is eliminated the amplifier will return to normal operation SERVICING YOUR JL AUDIO AMPLIFIER If your amplifier fails or malfunctions please return it to your authorized JL Audio dealer so that it may be sent in to JL Audio for service There are no user serviceable parts or fuses inside the amplifier The unique nature of the circuitry in the JL Audio amplifiers requires specifically trained service personnel Do not attempt to service the amplifier yourself or through unauthorized repair facilities This will not only void the warranty but may result in the creation of more problems within the amplifier If you have any questions about the installation or setup of the amplifier not covered in this manual please contact your dealer or the JL AUDIO Technical Department for assistance 954 443 1100 9 00 AM 5 30 PM Eastern Time Monday Friday 10 JL AUDIO e4300 SYSTEM CONFIGURATIONS The e4300 is a flexible amplifier well suited for a multitude of system configurations In this section the most likely configurations are explained in detail
21. invalidated as this date is previous to purchase date Non defective items received will be returned freight collect Customer is responsible for shipping charges and insurance in sending the product to JL AUDIO Freight damage on returns is not covered under warranty For Service Information in the U S A please call JL Audio customer service 954 443 1100 during normal business hours 9 00 AM 5 30 PM Eastern Time JL Audio Inc 10369 North Commerce Pkwy Miramar FL 33025 do not send product for repair to this address International Warranties Products purchased outside the United States of America are covered only by that country s distributor and not by JL Audio Inc Absolute Symmetry Class AB Amplifier Circuit is covered by U S Patent 6 294 959 and is pending in the countries listed below Austria Belgium Brazil Canada China France Germany Indonesia Italy Japan Republic of Korea Mexico Netherlands Norway Russian Federation Singapore Sweden Switzerland United Kingdom and all other PCT countries e4 300MAN CH O 2003
22. mplifiers in a system This pass through pre amp output can be configured two different ways using the switch labeled Pre Outs Input From eft Pre Quts Amplifie Filter Freq Hz Eh Oo W Q Pre Outs n Input From E ete 182 Sum ght 1 1 amp 2 In this mode the preamp output delivers the same signal that is connected to the e4300 s CH I Left and CH 2 Right Inputs This mode is useful for feeding a subwoofer amplifier when the e4300 is being used to drive front and rear speaker systems This preamp output mode will track the signal level of channels amp 2 allowing fading of the rear channels without affecting the subwoofer level 2 Sum This mode sends a sum of the channels amp 3 input signals to the left pre out connector and a sum of the channels 2 amp 4 input signals to the right pre out connector This signal is not affected by the CH 3 amp 4 Bass Boost processing selected for the amplifier or by any crossover filter selected When the e4300 Is being used to drive front and rear speaker systems this preamp output mode will deliver a summed front rear signal to the subwoofer amplifier while permitting fading of the front and rear speaker systems from the source unit When using either the line level inputs RCA input connections or the High Level Inputs fourpin connector the output signals are identical to the i
23. nals _ nono when activated 1 Filter Mode Control The e4300 employs a 2dB per octave filter for each pair of channels one filter for channels amp 2 and another filter for channels 384 Each of these filters can be configured independently into one of two filter types or defeated completely by way of the three position Filter Mode switches Off Defeats the filter completely allowing the full range of frequencies present at the inputs to feed the amplifier This is useful for systems utilizing outboard crossovers or requiring full range reproduction from one or both of the e4300 s channel pairs LP Low Pass Configures the filter to attenuate frequencies above the selected filter frequency at a rate of 2dB per octave This is useful for connection of subwoofer s to one or both of the e4300 s channel pairs in a bi amplified system HP High Pass Configures the filter to attenuate frequencies below the selected filter frequency at a rate of 2dB per octave This is useful for connection of component speakers to one or both of the e4300 s channel pairs in a bi amplified system 2 Filter Freq Hz The filter frequency markings surrounding this rotary control are for reference purposes and are generally accurate to within 1 3 octave or better If you would like to select the filter cutoff frequency with a higher level of precision consult the chart in Appendix B page 15 Tuning Hint
24. nnected to the CH 3 Left and CH 4 Right inputs of the e4300 select Discrete on the CH 3 amp 4 Input From switch The source unit s dedicated subwoofer output is connected to the subwoofer amplifier inputs Result with this option the user has the ability to fade the front and rear HF channels relative to each other and also has the ability to control the absolute level of the subwoofer channel relative to the HF channels IMPORTANT Set the subwoofer amplifiers Input Sens with the source units subwoofer level control set at 3 4 of full output Crossover Setup for Bi Amplified System with one e4300 and a separate subwoofer amplifier Once the input and preamp output sections have been configured appropriately go to the Channel amp 2 Controls and Channel 3 amp 4 Controls You will set both control sections identically to start Select HP high pass on the Filter Mode switch and an appropriate Filter Freq 100 Hz is a good starting point Remember to make these adjustments to both control sections After proper adjustment of the e4300 s Input Sens controls and the subwoofer amplifiers input sensitivity controls you can fine tune filter frequencies and attenuate either pair of channels to achieve proper balance For proper adjustment of the Input Sens controls of the e4300 use the method shown in Appendix A page 14 For precise filter freq
25. nput signals If the High Level Inputs are used the signal present at the Pre Outs can still be sent to another JL Audio amplifier In either case the Pre Outs signals are not affected by any settings in the Amplifier Controls or CH 3 amp 4 Bass Boost sections JL AUDIO e4300 SPEAKER OUTPUTS The e4300 s speaker outputs are designed to accept 8 AWG 16 AWG wire Each pair of the e4300 s channels are designed to deliver power into speaker loads equal to or greater that 2Q when using a stereo configuration and speaker loads equal to or greater than 4Q when using a bridged configuration Ch 1 L Che R Ch3 L Ch4 R O o mn OEY mn O O o min e Oz min g e 0 8 laine i fe Bridged 4Q min ssf EIMPORTANT Speaker loads below 2Q nominal per channel are not recommended and may cause the amplifier to initiate a protection mode and shut itself off BRIDGING CONSIDERATIONS Bridging is the practice of combining the output of two amplifier channels to drive a single load When bridged each channel produces signals of equal magnitude but opposite polarity The combined output of the two channels provides twice the output voltage available from a single channel The e4300 has been designed for bridging of its channel pairs without the need for input inversion adaptors To bridge a pair of channels use the Left and Right speaker connectors onl
26. output at the speaker outputs of the amplifier Unless you enjoy test tones at high levels it is a good idea to remove the speaker wires from the amplifier while doing this Turn the volume up approximately half way 5V or more should be measured at the speaker outputs This output level can vary greatly between amplifiers but it should not be in the millivolt range with the source unit at half volume If you are reading sufficient voltage check your speaker connections as explained below Check to ensure that the speaker wires are making a good connection with the metal inside the terminal block The speaker wire connectors are designed to accept up to 2 AWG wire Make sure to strip the wire to allow for a sufficient connection with the metal inside the terminal block MY AMPLIFIER S OUTPUT FLUCTUATES WHEN I TAP ON IT OR HIT A BUMP Check the connections to the amplifier Make sure that the insulation for all wires has been stripped back far enough to allow a good contact area inside the terminal block Check the input connectors to ensure that they all are making good contact with the input jacks on the amplifier HOW DO I PROPERLY SET THE INPUT SENSITIVITY ON MY AMPLIFIER Please refer to Appendix A page 14 to set the input sensitivity for maximum low distortion output JL AUDIO e4300 17 INSTALLATION NOTES Use this diagram to document your amplifier s switch and control positions
27. r outputs 6 Verify that you have disconnected the speakers before proceeding Play a track with an appropriate sine wave within the frequency range to be amplified by the e4300 at 3 4 source unit volume 7 Connect the AC voltmeter to the speaker output connectors of the amplifier If the channel pair is operating in stereo it is only necessary to measure one channel If bridged make sure you test the voltage at the correct connectors L and R 8 Increase the Input Sens control until the target voltage is observed with the voltmeter 9 Once you have adjusted the e4300 to its maximum low distortion output level reconnect the speaker s The Input Sens controls can now be adjusted downward if the amplifier requires attenuation to achieve the desired system balance mIMPORTANT Do not increase any Input Sens setting for any amplifier channel or channel pair in the system beyond the maximum level established during this procedure Doing so will result in audible distortion and possible speaker damage It will be necessary to re adjust the Input Sens for the affected channels if any equalizer boost is activated after setting the Input Sens with this procedure This applies to any EQ boost circuit including source unit tone controls or EQ circuits EQ cuts will not require re adjustment Nom Target AC Voltage Impedance 8Q 26 8 V 6Q 250V 4Q 24 6 V 3Q not recommended 202 not recomm
28. r volume levels can occur when the charging system voltage drops below 8V These dips can be of very short duration making them extremely difficult to detect with a common DC voltmeter To ensure proper voltage inspect all wiring and termination points It may also be necessary to upgrade the ground wire connecting the battery to the vehicle s chassis and the power wire connecting the alternator to the battery Many vehicles employ small 10 AWG 6 AWG wire to ground the battery to the vehicle s chassis and to connect the alternator to the battery To prevent voltage drops these wires should be upgraded to 4 AWG when installing amplifier systems with main fuse ratings above 60A Grounding problems are the leading cause of mis diagnosed amplifier failures 16 JL AUDIO e4300 Check the input signal using an AC voltmeter to measure the voltage from the source unit while an appropriate test tone Is played through the source unit disconnect the input cables from the amplifier prior to this test The frequency used should be in the range that is to be amplified by the amplifier example 50 Hz for a sub bass application or kHz for a full range high pass application A steady sufficient voltage between 0 2 and 8 0 volts should be present at the output of the signal cables Check the output of the amplifier Using the procedure explained in the previous check item after plugging the input cables back into the amplifier test for
29. rols section with the source unit s subwoofer level control set at 3 4 of full output See Appendix A page 14 for details Crossover Setup for Bi Amplified System with one e4300 Once the input sections have been configured appropriately go to the Channel 3 amp 4 Controls Select LP low pass on the Filter Mode switch and an appropriate Filter Freq 100 Hz is a good starting point Next turn your attention to the Channel amp 2 Controls and select HP high pass on the Filter Mode switch and an appropriate Filter Freq again 100 Hz is a good starting point After proper adjustment of the Input Sens controls for both channel pairs using the method shown in Appendix A page 14 you can fine tune filter frequencies and attenuate either pair of channels to achieve proper balance For precise filter frequency information refer to Appendix B page 5 JL AUDIO e4300 11 BI AMPLIFIED SYSTEM WITH ONE e4300 IN FOUR CHANNEL MODE AND A SEPARATE SUBWOOFER AMPLIFIER This configuration requires that the separate subwoofer amplifier has a built in low pass filter All JL Audio amplifiers have this feature In this configuration channels 1 amp 2 of the e4300 will drive front component speakers stereo 75W x 2 at 202 with high pass filtering Channels 3 amp 4 will drive rear component speakers in stereo 5W x 2 at 2Q also with high pass filtering The separate ampli
30. set screw on the top of the terminal block using the supplied 2 5mm hex wrench Strip 1 2 inch 12mm of wire and insert the bare wire into the terminal block seating it firmly so that no bare wire is exposed While holding the wire in the terminal tighten the set screw firmly taking care not to strip the head of the screw and making sure that the wire is firmly gripped by the set screw INPUT SECTION The e4300 s input section allows you to send signal to the amplifier section through the use of either two or four inputs and offers two distinct input connection options These are 1 Two pairs of traditional RCA type connections designed to accept input from source units with line level outputs 2 An eight pin connector designed to accept input from amplified sources such as factory source units or source units not equipped with line level outputs Amplifier Inputs CH 1 Left CH 3 Left F 1234 CH 2 Right CH 4 Right If you wish to send four discrete channels into the e4300 simply use all four inputs channels amp 2 and channels 3 amp 4 and set the CH 3 amp 4 Input From switch to Discrete If you wish to feed all four channels by using only two channels of input set the CH 3 amp 4 Input From switch to 1 amp 2 and use only the inputs to channels amp 2 The same input connection option does not need to be used for each channel pair The Input Sens adjustment is indep
31. ted MOSFET switching type Rated Power Stereo 45W RMS x 4 4Q 12 5V 75W RMS x 4 20 12 5V Rated Power Bridged 90W RMS x 2 8Q 12 5V 150W RMS x 2 4Q 12 5V THD at Rated Power lt 0 08 4 ohms per channel 20 Hz 20 kHz Signal to Noise Ratio gt 04 dB referred to rated power A weighted 20 Hz 20 kHz noise bandwidth Frequency Response 0 Hz 25 kHz 0 I dB Damping Factor gt 200 4Q per ch 50 Hz gt 100 2Q per ch 50 Hz Slew Rate 22V us AMPLIFIER FILTER Filter Type State variable 2dB octave Butterworth with continuously variable cutoff frequency selection from 50 200 Hz Configurable as Low Pass or High Pass Defeatable PREAMP OUTPUT Pass through type Switch selectable to pass signal from CH 1 amp 2 inputs only or from all four inputs summed DIMENSIONS LxWxH 13 8 x 9 25 x 2 36 350mm x 235mm x 60mm Due to ongoing product development all specifications are subject to change without notice JL AUDIO e4300 15 APPENDIX D TROUBLE SHOOTING MY AMPLIFIER DOESN T TURN ON Check to make sure there is 12V at the Remote connection of the amplifier In some cases the turn on lead from the source unit Is insufficient to turn on multiple devices and the use of a relay is required To test for this problem jump the 12V wire to the Remote terminal to see if the amplifier turns on If this does not work proceed to the next step C
32. the vehicle chassis and to connect the alternator s positive connection to the battery lo prevent voltage drops these wires should be upgraded to 4 AWG when installing amplifier systems with main fuse ratings above 60A FUSE REQUIREMENTS It is absolutely vital that the main power wire s to the amplifier s in the system be fused within 18 inches 45 cm of the positive battery post connection The fuse value at each power wire should be high enough for all of the equipment being run from that power wire If only the e4300 is being run from that power wire we recommend a 40A fuse be used AGU big glass fuse or MaxiFuse big plastic body fuse types are recommended No fuse is required or recommended directly before the amplifier power connection If one is desired we recommend the use of a 40A AGU fuse or MaxiFuse type JL AUDIO e4300 TURN ON LEAD The e4300 uses a conventional 12V remote turn on lead typically controlled by the source unit s remote turn on output The amplifier will turn on when 12V is present at its Remote input and turn off when 12V is switched off If a source unit does not have a dedicated remote turn on output the amplifiers turn on lead can be connected to 12V via a switch that derives power from an ignition switched circuit The e4300 s Remote turn on connector is designed to accept 18 AWG 12 AWG wire To connect the remote turn on wire to the amplifier first back out the
33. uct modification or neglect failure to follow installation instructions unauthorized repair attempts misrepresentations by the seller This warranty does not cover incidental or consequential damages and does not cover the cost of removing or reinstalling the unit s Cosmetic damage due to accident or normal wear and tear is not covered under warranty Warranty is void if the product s serial number has been removed or defaced Any applicable implied warranties are limited in duration to the period of the express warranty as provided herein beginning with the date of the original purchase at retail and no warranties whether express or implied shall apply to this product thereafter Some states do not allow limitations on implied warranties therefore these 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 If you need service on your JL AUDIO product All warranty returns should be sent to JL AUDIO s Amplifier Service Facility freight prepaid through an authorized JL AUDIO dealer and must be accompanied by proof of purchase a copy of the original sales receipt Direct returns from consumers or non authorized dealers will be refused unless specifically authorized by JL AUDIO with a valid return authorization number Warranty expiration on products returned without proof of purchase will be determined from the manufacturing date code Coverage may be
34. uency information for the e4300 refer to Appendix A page 5 Refer to the subwoofer amplifier owner s manual for proper adjustments 12 JL AUDIO e4300 JL AUDIO e4300 13 APPENDIX A Input Sensitivity Level Setting Following the directions below will allow the installer to adjust the input sensitivity of each amplifier channel pair simply and easily in just a few minutes using equipment which is commonly available in installation bays Necessary Equipment e Digital AC Voltmeter e CD with a sine wave test tone recorded at O dB reference level in the frequency range to be amplified for that set of channels 50 Hz for subwoofer channels kHz for a midrange application Do not use attenuated test tones 10 dB 20 dB etc The Nine Step Procedure 1 Disconnect the speaker s from the amplifiers speaker output connectors 2 Turn off all processing bass treble loudness EQ etc on the source unit processors if used and amplifier Set fader control to center position and subwoofer level contro to 3 4 of maximum if used to feed the e4300 3 Turn the Input Sens control all the way down 4 Set the source unit volume to 3 4 of full volume This will allow for reasonable gain overlap with moderate clipping at full volume 5 Using the chart on this page determine the target voltage for input sensitivity adjustment according to the nominal impedance of the speaker system connected to the amplifie
35. y the Left and Right remain unused Vhen bridged each channel will deliver optimum power into a 4Q load IMPORTANT When a pair of channels are bridged they will deliver ISQW x into a 4Q load or OW x into an 8Q load Operating a pair of bridged channels into a load lower than 4Q is not recommended Because a bridged pair of channels requires that both channels receive input you need to connect both left and right inputs to the source unit Connection of only one input will result in reduced power output increased distortion and can cause the amplifier to overheat Do not do this When a pair of the e4300 s channels are operating in bridged mode the output will be in mono only one channel This mono channel can contain right channel only information left channel only information or the sum of the information from both the right and left channels In order to achieve one of these options configure the inputs to that pair of channels in one of these two ways 1 Left Channel Only or Right Channel Only Information If you wish to send a Left only or Right only signal to a pair of the e4300 s channels use a Y Adaptor to split the single channel signal into both left and right RCA inputs or parallel connect both positive and both negative high level input connections to a single channel source signal This option is useful when using a pair of the e4300 s channels to drive left channel speakers only
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