background image

LIMITED WARRANTY - AMPLIFIERS (USA)

+-"6%*0XBSSBOUTUIJTQSPEVDUUPCFGSFFPGEFGFDUTJONBUFSJBMTBOEXPSLNBOTIJQGPSBQFSJPEPG

ninety (90) days from the original date of purchase. The warranty term is extended to two (2) years if 

JOTUBMMBUJPOJTQFSGPSNFEPSBQQSPWFECZBOBVUIPSJ[FE+-"6%*0EFBMFS QSPPGPGJOTUBMMBUJPOPSBQQSPWBM

required on purchase receipt).

5IJTXBSSBOUZJTOPUUSBOTGFSSBCMFBOEBQQMJFTPOMZUPUIFPSJHJOBMQVSDIBTFSGSPNBOBVUIPSJ[FE

 

+-"6%*0EFBMFS4IPVMETFSWJDFCFOFDFTTBSZVOEFSUIJTXBSSBOUZGPSBOZSFBTPOEVFUPNBOVGBDUVSJOH
EFGFDUPSNBMG-"6%*0XJMM BUJUTEJTDSFUJPOSFQBJSPSSFQMBDFUIFEFGFDUJWFQSPEVDUXJUIOFX
PSSFNBOVGBDUVSFEQSPEVDUBUOPDIBSHF%BNBHFDBVTFECZUIFGPMMPXJOHJTOPUDPWFSFEVOEFSXBSSBOUZ

accident, misuse, abuse,  product modification or neglect, failure to follow installation instructions, 

VOBVUIPSJ[FESFQBJSBUUFNQUTNJTSFQSFTFOUBUJPOTCZUIFTFMMFS5IJTXBSSBOUZEPFTOPUDPWFSJODJEFOUBM

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:

"MMXBSSBOUZSFUVSOTTIPVMEC-"6%*0T"NQMJGJFS4FSWJDF'BDJMJUZGSFJHIUQSFQBJEUISPVHI

BOBVUIPSJ[FE+-"6%*0EFBMFSBOENVTUCFBDDPNQBOJFECZQSPPGPGQVSDIBTF BDPQZPGUIFPSJHJOBM
TBMFTSFDFJQU%JSFDUSFUVSOTGSPNDPOTVNFSTPSOPOBVUIPSJ[FEEFBMFSTXJMMCFSFGVTFEVOMFTTTQFDJGJDBMMZ
BVUIPSJ[FECZ+-"6%*0XJUIBWBMJESFUVSOBVUIPSJ[BUJPOOVNCFS

Warranty expiration on products returned without proof of purchase will be determined from the 

manufacturing date code. Coverage may be 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 

JOTVSBODFJOTFOEJOHUIFQS-"6%*0'SFJHIUEBNBHFPOSFUVSOTJTOPUDPWFSFEVOEFSXBSSBOUZ

 

For Service Information in the U.S.A. please call

JL Audio Customer Service

: (954) 443-1100  

9:00 AM – 5:30 PM (Eastern Time Zone) 

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 A/B 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.

 

450/4v2MAN-CH-03-2007

Summary of Contents for 450/4V2

Page 1: ...tise 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 amplifier s operation please contact you...

Page 2: ...ystem 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 i...

Page 3: ... 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 B page 22 for the recommended input sensitivity setting method 16 Enjoy the fruits of your labor with your favorite music PRODUCT DESCRIPTION The JL Audio 450 4v2 is a four channel system BNQMJGJFS VUJMJ JOH QBUFOU...

Page 4: ...tagew TXJUDI TFMFDUT BO input sensitivity range between 800mV and 8V This is useful for certain high output preamp level signals as well as speaker level output from source units and small amplifiers To use speaker level sources splice the speaker output wires of the source unit or small amplifier onto a pair of RCA plugs for each input pair or use the JL Audio ECS Speaker Wire to RCA adaptor XB C...

Page 5: ... right this switch multiplies the cutoff frequency TFMFDUFE CZ UIF SPUBSZ iFilter Freq Hz w DPOUSPM CZ B GBDUPS PG O UIF ix1w QPTJUJPO UIF SBOHF PG UIF SPUBSZ DPOUSPM JT BT NBSLFE O UIF ix10w QPTJUJPO UIF SBOHF PG UIF SPUBSZ DPOUSPM JT L IMPORTANT The output of the amplifier will decrease for a given input voltage when the Input Range switch is placed in the High position Conversely the output wil...

Page 6: ...ut Re Ba Ba O ction Bridged 300W x 1 3 8Ω Left Right 150W 1 5 4Ω 150W CH 1 2 Speaker Outputs 3 iFilter Freq Hz w 5IF GJMUFS GSFRVFODZ 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 charts in Appendix A page 22 of this ma...

Page 7: ...fiers requires specifically USBJOFE TFSWJDF QFSTPOOFM P OPU BUUFNQU to service the amplifier yourself or through VOBVUIPSJ FE SFQBJS GBDJMJUJFT 5IJT XJMM OPU POMZ 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 technical support ...

Page 8: ...s option the user has the ability to fade the level of the subwoofer amplifier s 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 450 4v2 s iInput Sens w TFUUJOHT BOE XJMM OPU CF VTFS adjustable from the front of the vehicle SYSTEM CONFIGURATIONS The 450 4v2 is a very flexible ampl...

Page 9: ...r with front and rear pairs of stereo outputs Input Connections one stereo pair of source unit outputs is connected to the CH 1 2 JOQVUT PG UIF W TFMFDU i4chw PO UIF iInput Modew TXJUDI JO UIF iCH 1 2 Input Sectionw 5IF TFDPOE TUFSFP QBJS PG TPVSDF unit outputs is connected to the CH 3 4 inputs of the 450 4v2 Connect the subwoofer amplifier inputs to the preamp outputs of the W 4FMFDU iALLw PO UIF...

Page 10: ...center speaker system This is not as desirable as a true center channel from a multi channel source but it can be used to create a convincing sound stage in some applications B Summed Center Channel No User Adjustability Required a basic source unit or processor with left and right stereo outputs Input Connections a single pair of stereo source unit outputs connected to the CH 1 2 JOQVUT PG UIF W ...

Page 11: ...subwoofer amplifier owner s manual for proper adjustments TRI AMPLIFIED SYSTEMS Tri amplified systems are defined as systems in which separate amplifier channels drive low frequency LF mid frequency MF and high frequency HF speakers and are separately filtered to send appropriate frequency ranges to each speaker system The most common application of tri amplification in mobile audio is to drive a ...

Page 12: ...m Impedance CHANNELS 1 2 CHANNELS 3 4 Stereo Bridged Stereo Bridged 8Ω 24 5 V 49 0 V 17 3 V 34 6 V 6Ω 24 5 V 42 4 V 17 3 V 30 0 V 4Ω 24 5 V 34 6 V 17 3 V 24 5 V 3Ω 21 2 V 30 0 V 15 0 V 21 2 V 2Ω 17 3 V not recommended 12 2 V not recommended 1 5Ω 15 0 V not recommended 10 6 V not recommended APPENDIX A Precise Frequency Selection Chart FILTER FREQ CH 1 2 CH 3 4 Detent Panel Actual Number Marking Fr...

Page 13: ...nnection with the metal inside the terminal block The speaker wire connectors are designed to accept up to 8 AWG wire Make sure to strip the wire to allow for a sufficient connection with the metal inside the terminal block How do I properly set the input sensitivity on my amplifier Please refer to Appendix B page 22 to set the input sensitivity for maximum low distortion output My amplifier doesn...

Page 14: ...quency to operate as a bandpass filter for tri amp configurations Defeatable LF Boost Single band fixed frequency 48 Hz fixed Q 6 dB boost Defeatable Port for optional remote bass control to provide variable boost control from 0 to 15 dB Infrasonic Filter 24 dB octave 30Hz defeatable Channels 3 4 Amplifier Topology Class A B with patented Absolute Symmetry dual N Channel MOSFET output design Power...

Page 15: ... Input Mode 2ch 4ch Filter Type LP BP HP x1 x10 Low High Input Voltage Low High High Pass Filter Off 12dB 24dB Freq Range Filter Mode Slope x1 x10 Off 12dB 24dB Infrasonic Filter Off 30Hz Bass EQ Off On Signal From 1 2 3 4 All 50 60 75 95 130 200 500 50 60 75 95 130 200 500 Filter Freq Hz 450 4v2 Four Channel System Amplifier Preamp Output Section 1 2 Inputs Only Either feature sums the CH 1 2 inp...

Page 16: ...30 JL Audio 450 4v2 Owner s Manual 31 NOTES NOTES ...

Page 17: ...lied 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 MM XBSSBOUZ SFUVSOT TIPVME CF TFOU UP 6 0 T NQMJGJFS 4FSWJDF BDJMJUZ GSFJHIU QSFQBJE UISPVHI BO BVUIPSJ FE 6 0 EFBMFS BOE NVTU CF BDDPNQBOJFE CZ QSPPG PG QVSDIBTF B DPQZ PG UIF PS...

Reviews: