Installation Instructions
Contents
1. This is almost always caused by a poorly grounded RCA patch cord Troubleshooting2. a a will present a 4 ohm load to each to a bridged two channel amplifier DOSS ib le The b est SU bjec tive S N ratio Is O bta Ina ble this W ay channel of the amplifier Most two will present a 2 ohm mona load to the Try to drive as high a signal level from the head unit as possible ee ila ad AMPLIFIERS DO NOT SUPPORT 2 OHM MONO OPERATION AMPLIFIER DAMAGE COULD RESULT Sound araured Inc 600 Sid sioz Brook me 11204 Protection LED comes on when the amplifier is powered up Check for shorts on speaker leads e Check that the volume control on the head unit is turned down low Remove speaker leads and reset the amplifier If the Protection LED still comes on then the amplifier is faulty Amplifier s gets very hot Check that the minimum speaker impedance for that model is correct Check for speaker shorts e Check that there is good airflow around the amplifier In some applications an external cooling fan may be required Distorted sound i H S Check that the Level control s is set to match the signal Peurdcdinacdaf are Gre lier bien E i a level of the head unit i wil presenta 4 ohm load to each to a beid ged four ehan nel am piter Check that all crossover frequencies are properly set channel amplifiers will work well in this amoifier MOST FOUR CHANNEL Check for shorts on the speaker leads configuration MONO OPERATION AMPLIFIER DAMAGE COULD RESULT High squeal noise from speakers
3. E NI DOM PEDE BRIDGED MODE 4 8 OHMS 4 8 OHMS 4 8 OHMS 4 8 OHMS 4 8 OHMS 4OHMS overload or speaker short circuit be sure to MAXIMUM CURRENT DRAW 40 A 30 A 40 A 50 A 60 A 40 A ake RR restart the amp 00S se aitemptina to o Y r To reset the amp turn the REMOTE power off and DIMENSIONS W x H x L inches 1142 X 197 X 7 1142 X 197 X 15 1142X 197 X 7 1142 X 197 X 19 1 1312X197X21 142X197X2 T 9 S a 8 6 E I l Remote Bass Boost mm 290 X 50 X432 290 X 50 X 381 290 X 50 X432 290 X 50X482 290X50X532 290 X 50 X 305 W mper i Plug in the Remote Bass Boost Control wire in here NET WEIGHT LBS KG 9 64 4 38 8 54 3 88 9 72 4 42 10 78 4 9 1199 5 45 7 77 3 53 dd AO n LA 1068 4CH amplifier Features and Specifications LA 1468 2CH amplifier LA 1868 2CH amplifier LA 2068 2CH amplifier LA 2268 2CH amplifier L A 2228 Mono channel amplifier Features and Controls Low Pass Control Permits you to adjust the crossover frequency from 35 Hz to 400 Hz to suit the subwoofers High Pass Control Permits you to adjust the crossover frequency from 80 Hz to 2 5 kHz to suit the tweeters High Level Input Low Impedance jy p 5 dk gecamooencigaoo59gcougagopoopoonnegUCOU p A eed m brie a pee Li My maea DE T I D 4 i pr JJ 0702s F 1 Er p i f 4 i A Er m i i y NM vu 3t i IM pi aa E
4. distortion is present reduce the setting of this control Crossover Mode Switch In a full range system set this to FULL If the amp is being used to power a crossover system set to either HPF or LPF as needed Bass Boost Control Allows you to increase the bass signal level sent to the speakers Specifications OUTPUT POWER RMS 4 OHMS 4 X 75W 2 X D5W 2 X 150W 2 X 200W 2 X 300W 200W mono eser E RMS 2 OHMS 4 X 115W 2 X 200W 2 X 225W 2 X 300W 2 X 450W 335W mono from the head unit to these inputs o0 Pot MAX OUTPUT 4 X 500W 2 X 800W 2 X 1000W 2 X 200W 2 X 2000W 2000W mono BRIDGE MODE 2 X 500W 1000W 1X 1600W 1X 2000W 1X 2400W 1X 4000W Low Level Input High Impedance oR 2 X 1000W This unit is provided with gold plated RCA input FREQUENCY RESPONSE 10Hz 30 kHz 20 250Hz 3dB Connect these inputs to the P ANNUS fom your head uni Ea Power LED Indicator LOW LEVEL INPUTS 10 k Ohms 10 k Ohms iS iuri HIGH LEVEL INPUTS 100 Ohms 100 Ohms M SEE a pace hen the REMOTE ON INPUT SENSITIVITY Bote CIEL IM za D Inac aror TR LOW LEVEL INPUTS 250 mV 250 mV Hi E MISMOS Gace Bente OO CIRC HIGH LEVEL INPUTS 2 5V 4V the PROTECT LED will be illuminated At that time it is important iue von ENSE c Ey Siete HE POWER SUPPLY VOLTAGE 14 4 VDC N EG GD 10 5 16V 14 4 VDC N EG GD Aa the protection circuitry to become 10 5 16V MATCHING SPEAKER IMPEDANCE If LE RUE shut A E of a era overload STEREO MODE 2 4 OHMS 2 4 OHMS 2 4 OHMS 2 4 OHMS 2 4 OHMS 10HMS Skit 5a
5. ipse dici j ue zn P i El i i zd Hr ia a n OD LEGACY 9 9L j AN 0 om S55 Features and Controls Speaker Terminals These terminals are 14K Gold plated for high conductivity and minimum impedance loss The terminals face upwards for easy wiring in tight situations Fuse Protects the amplifier as well as the automobile electrical system from short circuit conditions Power Supply Terminals Input Level Control Use this control to match the output of the head unit to the amplifier If distortion is present reduce the setting of this control Crossover Mode Switch In a full range system set this to FULL If the amp is being used to power a crossover system set to either HPF or LPF as needed Bass Boost Control Allows you to increase the bass signal level sent to the speakers Low Pass Control Permits you to adjust the crossover frequency from 35 Hz to 400 Hz to suit the subwoofers High Pass Control Permits you to adjust the crossover frequency from 80 Hz to 2 5 kHz to suit the tweeters High Level Input Low Impedance Use these if your car stereo does not have RCA output jacks connect the speaker output from the head unit to these inputs Low Level Input High Impedance This unitis provided with gold plated RCA input jacks Using RCA RCA type patch cords connect these inputs to the RCA outputs from your head unit Power LED Indicator This LED is illuminated wh
6. other equipment is gy ooo adn da ooo 000 aon LEGACY sian INS turned off while connecting the input jacks and speaker terminals If you need to replace the power fuse only replace it with a fuse identical to that supplied with the system Using a fuse of a different type or ps Pn me j rating may result in damage to your system which isn t covered by the manufacturer s warranty ZE wo E o ex rt EAN C E h Ge KR EMEN amp i C Setting Up and Turning On Your New Amplifier E wiring harness After all electrical connections have been made and physical installation is complete turn on your stereo and listen for the amplifier to turn on If J there are any unusual noises from the speakers turn the stereo off and recheck ALL wiring Assuming the amplifier turn on normally you may have to adjust the LEVEL control s to match the output levels from your head unit Follow these steps L Set the volume control on your head unit to about the 2 3 position 2 Adjust the amplifier LEVEL control s to an average listening position 3 Turn the head unit volume all the way down and listen for background noise s ac 4 Start your vehicle and again listen for background noise black orange 5 By fine tuning the LEVEL control s you can reduce background and engine noise if present from speaker terminals These adjustments should only be made once After that use the head unit volume control to adjust the system vol
7. what has caused the protection circuitry to become activated If the amp shut off because of a thermal overload allow it to cool down before attempting to restart If the shutdown occured because of an input overload or speaker short circuit be sure to correct these conditions before attempting to restart the amp To reset the amp turn the REMOTE power off and on again Power LED Indicator This LED is illuminated when the REMOTE ON system is turned on Remote Dash mount Gain C ontrol This amplifier come complete with a compact remote GAIN CONTROLLER which can be conveniently mounted on or under the dashboard of your car ZG ooo Goa ooo ooo O50 ooo oon Ooo0Qg Low Level Stereo Input Connection oon aon n in FEE ros 4 oa 65 En aa n er Making Power Connections L Connect the 2V terminal directly to the car battery terminal f ay ooo ono ono ooo ooo ooo 2 Connect the GROUND terminal directly to the car battery ps LEGACY en cnr arn terminal OR to a good clean paint free chassis ground point 1 1 f Ljss 9m 6 3 To ensure a good ground and to prevent motor boating noise 1 amp OOO0noO0000000000000000000000o0D0ooOC in the system make an additional connection from the car battery terminal to the chassis of the stereo unit using 12 gauge to remote M minimum wire i i turn on Ele
8. 00 000000000 00000000000007o GE 2 CH Stereo plus Mono Bridged speakers Subwoofer Output MINIMUM Gee SPEAKER IMPEDANCE Mono Subwoofer 4 OHMS Speaker Connections Low Level Stereo Input Connection ZA ooo ood eua eua ood puo puo M ONO C HANN E L LEGACY CLAS OS MDPRO DUNA OER AM PS KjJooS ax 95 I Ge anpgogooogoogoogoogooggoogoogcooOgD umi mimi mimm mum subwoofer TO SATELLITE AMPLIFIER LINE INPUT MI NI MUM SPEAKER I MPEDANCE 1 3 4 OHMS L R Audio Outputs head unit Speaker Output Connection Input Connections Speaker Connection Amplifier will not power up Check for good ground connection e Check that remote DC terminal has at least H2v DC e Check that there is battery power on the e terminal Check all fuses Check that Protection LED is not lit If it is lit Shut off amplifier briefly and then repower it High hiss or engine noise alternator whine in speakers e Disconnect all RCA inputs to the amplifier s if hiss noise disappears then plug in the component driving the amplifier and unplug its inputs If hiss noise disappears go on until the faulty noisy component is found z hanmasl Aemjlifiar Operating in Bridged Mono 2 channe Amplifier Operating in Sterea YES e Itis best to set the amplifier s input level as insensitive as Two 4 ohm speakers wired in stereo Two 4 ohm speakers wired in parallel 5
9. EATURES amp CONTROLS LA 2228 FEATURES amp CONTROLS ELECTRICAL WIRING INSTALLATION amp SETUP 2 CH STEREO INPUT CONNECTIONS 4 CH STEREO INPUT CONNECTIONS BRIDGED INPUT CONNECTIONS BASIC STEREO SPEAKER CONNECTIONS MONO BRIDGED SPEAKER CONNECTIONS MONO BLOCK INPUT amp SPEAKER CONNECTIONS TROUBLESHOOTING Legacy Predator Amplifier Features LA 468 568 668 768 868 968 1068 1468 1868 2068 2268 also feature e Soft turn on off circuit e Variable gain control e Remote turn on off e Hi low level inputs ePower on LED indicator e LED protection indicator Specifications OUTPUT POWER RMS 4 OHMS RMS 2 OHMS MAX OUTPUT BRIDGE MODE FREQUENCY RESPONSE INPUT IMPEDANCE LOW LEVEL INPUTS HIGH LEVEL INPUTS INPUT SENSITIVITY LOW LEVEL INPUTS HIGH LEVEL INPUTS POWER SUPPLY VOLTAGE MATCHING SPEAKER IMPEDANCE STEREO MODE BRIDGED MODE MAXIMUM CURRENT DRAW DIMENSIONS W x H x L inches mm NET WEIGHT LBS KG e Fully adjustable electronic crossover network e Remote control Bass boost 0 18dB 60Hz e 2 ohm stereo stable e Bridgeable into 4 ohms e MOSFET PWM power supplies 403 2CH amplifier 2 X 40W 2 X 60W 2 X 300W 1X 600W 10Hz 30 kHz 10 k Ohms 100 Ohms 250 mV 295V 503 2CH amplifier 14 4 VDC NEG GD 10 5 16V OHMS OHMS DA 1142 X 197 X 8 25 290 X 50 X 209 5 48 2 49 2 4 OHMS 4 8 OHMS BA 1142 X 197 X 9 25 290 X 50 X 235 5 76 2 62 LA 668 4CH amplif
10. LEGACY SOUND CORP warrants this unit to be free from defective material or workmanship and will repair or replace this unit or any part thereof if it proves defective in normal use or service within two 2 years from the date of original purchase MANUFACTURER S LIMITED TWO YEAR VVARR ATINT Y L E e AC Y Our obligation under this warranty is limited to repairing or replacing at our discretion the defective instrument or any part thereof when it is returned transportation prepaid to the Legacy Service Center at the address below This warranty will be considered void if the unit has been tampered with improperly serviced subjected to abuse or misuse or if installed in a commercial vehicle This warranty does not cover accidental damage When returning this unit for service please include 15 00 for return postage and handling Send your unit to IMPORTANT Pack carefully in original carton if possible We are not LEGACY SERVICE CENTER 1600 63rd Street responsible for damage incurred in returning items for repair A letter Brooklyn NY 11204 stating your exact street address daytime phone number and the problem you are experiencing should be included You must also enclose a copy of the original receipt as proof of date of purchase FOR YOUR PROTECTION Completely and immediately mail the Product Registration Card so that we may contact you directly in the event a safety notification is issued in accordance with the 1972 Consumer
11. Product Safety Act or for other reasons Legacy may deem necessary TECHNICAL SUPPORT HOTLINE Our technical department will gladly answer any questions you may have about our products They cannot however tell you the status of a repair or handle other customer service situations 1 800 934 2277 Monday through Thursday 9AM to 5PM Friday 9AM to 2PM Eastern LEGACY VV VV VV legacycaraudio com Congratulations x on your purchase ofa S Legacy amps are some of the most advanced car amplification products available These quality audio products are designed and engineered to afford you years of uncompromised musical service Legacy has utilized the latest electronic technologies in order to deliver a superb listening experience This innovative system has been designed utilizing a 12 V DC Negative Ground power supply The LEGACY PREDATOR Series amps incorporate two to eight MOSFETS in the different models This design produces enough available voltage to supply the main amplifier sections and still have a huge amount of reserve voltage for peak high demand situations The Legacy line has been designed to ensure adequate headroom for even the most demanding peaks and dynamic ranges found on today s CD s and recordings Used properly these amplifiers will provide you with years of listening pleasure table of contents SPECIFICATIONS LA 468 568 768 968 1468 1868 2068 2268 FEATURES amp CONTROLS LA 668 868 1068 F
12. automobile electrical system from short circuit conditions Power Supply Terminals Input Level Control Use this control to match the output of the head unit to the amplifier If distortion is present reduce the setting of this control Phase Shift Switch Allows you to change the phase of your subwoofer from O degree to 180 degrees to help compensate from timing difference between drivers High Pass Subsonic Filter Adjustable from 15Hz to 40Hz with a slope of 24dB per octave This allows for the attenuation of frequencies that are mostly inaudible and cause unnecessary strain on the amplifier Crossover Low Pass Filter Adjustable from 20Hz to 250Hz with a slope of 24dB per octave This allows for the adjustment of the upper point of the frequency bandwidth and the respective subwoofer Low Level Input High Impedance This unit is provided with gold plated RCA input jacks Using RCA RCA type patch cords connect these inputs to the RCA outputs from your head unit Low Level Output High Impedance This unit is provided with gold plated RCA Output jacks Using RCA RCA type patch cords connect these Outputs to the RCA Inputs for your anyther amplifier Protection LED Indicator The protection circuitry in the amp will disable it if it senses an input overload speaker short circuit or thermal overload conditions Should this occur the PROTECT LED will be illuminated At that time it is important that you check to determine
13. ctrical Connections DV PV battery 4 Connect the REMOTE terminal to an external switch for positive 12V turnon off This may be connected to the head unit power all models antenna lead head unit head unit 2CH AMPS Installation Precautions L R audio outputs This amplifier comes complete with all mounting harware required Please remember that this is a high power unit which generates considerable electrical energy and heat Therefore be sure to install the unit in a place with sufficient airflow a minimum of dust and no moisture Allow enough space around the cooling fins to permit reasonable airflow and cooling Before you drill or cut any holes investigate your car s layout very carefully Take care when you work near the gas tank fuel lines hydraulic line and electrical wiring Do notoperate the amplifier when it is unmounted Attach all audio system components securely within the automobile to prevent damage especially mManaccgent High Level Stereo Input Connection PLEASE NOTE If using high level inputs do not use the low level RCA inputs at the same time e Do not mount this amplifier so that the wire connections are unprotected or in a pinched condition or likely to be damaged by nearby objects Be sure to select a location inside your vehicle which has adequate ventilation Before making or breaking power connections in your system disconnect the vehicle battery Confirm that your head unit or
14. en the REMOTE ON system is turned on Protection LED Indicator The protection circuitry in the amp will disable it if it senses an input overload speaker short circuit or thermal overload conditions Should this occur the PROTECT LED will be illuminated At that time it is important that you check to determine what has caused the protection circuitry to become activated If the amp shut off because of a thermal overload allow it to cool down before attempting to restart If the shutdown occured because of an input overload or speaker short circuit be sure to correct these conditions before attempting to restart the amp To reset the amp turn the REMOTE power off and on again Remote Bass Boost Plug in the Remote Bass Boost Control wire in here gi In TA Ae a ee ie ine tine mp fi Ie rr LL a ep Etsi L B Ih fa Yi E I ap aes a q4 7 ARE j k ji SEES N s TENE p OREJAG Ti EE ret ne meam Se Ee ET he Be ia reta re L T a EI m E A n i LE i EP LEGT EET i m Jal iad PS Sah TE ES Pe i D i c ns mm r1 t PN pen if 3l m Er re a Features and Controls Speaker Terminals These terminals are 14K Gold plated for high conductivity and minimum impedance loss The terminals face upwards for easy wiring in tight situations Fuse Protects the amplifier as well as the
15. ier OHMS OHMS 20A 1142 X 197 X D 290 X 50 X 305 7 39 3 36 LA 768 2CH amplifier 1142 X 197 X 2 290 X 50 X 305 6 86 3 12 LA 303 4CH amplifier 400W 400W 800W R2 X 800W 4 X 4 X 715W 4 X 2X O A 4 8 30 A 1142 X 197 X D 290 X 50 X 381 8 8 4 OHMS OHMS 2CH amplifier 2 4 OHMS 4 8 OHMS 30A 1142 X 197 X 13 5 290 X 50 X 343 7 83 3 56 Features and Specifications Speaker Terminals These terminals are 14K Gold plated for high conductivity and minimum impedance loss The terminals face upwards for easy wiring in tight situations Fuse Protects the amplifier as well as the automobile electrical system from short circuit conditions Legacy Predator Amplifier Features LA 2228 also feature Mono Block Subwoofer Amplifier 1 Ohm Stable MOSFET Power Supply PWM Pulse Width M odulation System Glass Epoxy PCB Gold Plated RCA Inputs for Line Input amp Bypass Output Gold Plated Terminals for Speaker Output and Power Input Thermal Overload and Short Protection Variable Sub sonic Filter 15Hz 40Hz 24dB Octave Variable Low pass Filter 20Hz 250Hz 24dB Octave Phase Control 0 180 degree Remote Bass Control Input Impedance 10K Ohms Soft Turn On Off Advanced Protection Circuitry S N Ratio gt 90dB Power Supply Terminals Input Level Control Use this control to match the output of the head unit to the amplifier If
16. ume not the LEVEL control s CAUTION Never turn the LEVEL control s up any higher than you need to get clear sound at 2 3 volume on the head unit n Input Connections Electrical VViring and Installation auo DE ogg gogo ooo Oca 000 ooo ooo O00 EISE wee EEE SEIS ao abeo ooh ROO os BAN ZN LEGACY saminean 9 v Les 999aS 4C H AMPS m m m m m m m m m m m m m m m m m m m m m m ma m m ms amp OOO0000000000000000000006000000 oo oo Low Level 4 CH Stereo Input from 2 CH Audio Source to a second amplifier Left Output head unit a edd UntE 2CH AMPS Y adaptors Right Output Y adaptors aono AAA 000 ano uoo 000 Vio Wed vaca arr amar asar rafi OF ooo GAA a pO 67646 199 SI LEGACY aiii o amp omooopoo0o0o0 0 000 0000000000000000000000 Low Level 4 CH Stereo Input 0 from 4 CH Audio Source 4CH AMPS Bridged Input 2 CH Audio Source Left Channel Right Channel L R Front Outputs head unit L R Rear Outputs Right Output Y adaptors Input connections Input connections auo anao AAO A O80 LEGACY 9 amp m nose C i Sum m mono odd On 4CH AMPS wiring harness head unit orange orange REAR FRONT euo 22 euo oon is pu om a f b am fe rae A Jj a nin Ond 6900mO ord didi ae cee ee LEGACY san uos munn aa
17. y Summe brm rm pam qw anggogaoggggoOOgOO gOgYoogogyOgOgOOoOoOOgOOgOOgOOoOOOgOOSO OOgOgOGDUOOGOOOODOOOO ano REAR FRONT Input connections pae m Lone anggogogngggoOOgOOgOgOoogogOgOgOOoOOOgOOgOOgOO3OOOgG gDgOOogOOgOGDgOpDpOO GDwOgOOOOO D UI 42 0 High Level 4 CH Stereo Input from 4CH Audio Source floating ground connection High Level 4 CH Stereo Input from 4CH Audio Source common ground connection a ZA mooo O00 OOO OOO OOO OOO 000 000 O00 oom RS E 2U M SEU un AX FENE EM E 7 T 1 l Ld d Ds 5 i B 00000000000000000000000000000000000000000 amp i I p ee i Basic Stereo Qutput Sm Sm Gaze GE LEFT speaker RIGHT speaker a ooo ooo ooo ooo ooo ODO OOO O00 ooo ooo aes AM 1 mr ig T PE A n FANS on Wem r aen ET T ET o fx Obey TL Ao rem GH 00000000000000000000000000000000000000000 us amp JU Basic 4CH Output gli uim 3 FRONT R L REAR speakers speakers Speaker Connections 2CH AMPS 4CH AMPS ano AAA oom Bridged Mono Output tamm MINIMUM SPEAKER I MPEDANCE speaker 4 OHMS 2C H AMPS aono ooo O00 OOO dQOoO ooo aer mr em e az e AL ay iF hes speakers MI NI MUM SPEAKER L I MPEDANCE 4 OHMS 4CH AMPS ano ooo auo em an ier D er qui a N _ Nooo gooooboo00eeb0
Download Pdf Manuals
Related Search