Legacy Car Audio LA1470 Car Amplifier User Manual
Contents
1. 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 LA370 without Plug in the Remote Bass Boost Control wire in here 400 W x 4CH ELECTRONIC CROSSOVER NETWORK Qe bass low h oost pass pass freq level Ipf hpf b i o 5 400 80 2 fuse t ground oe Cr CRM Gd Ld Le So a bridged cHi e E 9 cre CH3 9 cH aege i 484 3 5K REMOTE Co erss Boost hi level ass low hi h CH CH3 freq b E Co ables DAE level fut lef hor boost pass pass amp w ose OO O SZ am O min max o 5 400 8o ai L BdB 3 SK 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 to2. L Connect the 2V terminal directly to the car battery terminal 2 Connect the GROUND terminal directly to the car battery terminal OR to a good clean paint free chassis ground point 3 To ensure a good ground and to prevent motor boating noise pum s level freq pass iu hi in the system make an additional connection from the car battery to remote t terminal to the chassis of the stereo unit using 12 gauge turn on o minimum wire Electrical Connections id PV battery head unit 4 Connect the REMOTE terminal to an external switch for positive all models Sr 12V turnon off This may be connected to the head unit power antenna lead 2C HH AMPS Installation Precautions 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 e Do not operate the amplifier when it is unmounted Attach all audio system components securely within the automobile to prevent damage especiall ue in an a E d j d i i j d High
3. SS eee e Check that remote DC terminal has at least 2v DC N level ayr rer Boost pass pass e Check that there is battery power on the terminal OJO 60086 eui A d al li ud Check all fuses Check that Protection LED is not lit If it is lit Shut off amplifier briefly and then repower it TO 9 level fun v E jax poe 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 4CH AMPS PEAKE e Itis best to set the amplifier s input level as insensitive as MI NI MUM possible The best subjective S N ratio is obtainable this way L SPEAKER R Try to drive as high a signallevel from the head unit as possible I MPEDANCE 4 OHMS 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 Speaker Connections 2 CH Stereo plus Send Mono Bridged speakers Subwoofer Output MINIMUM SPEAKER IMPEDANCE 4 OHMS Before removing your amplifier refer to the list below and follow the suggested procedures Always test the Speakers and their wires first Am plifier s gets v
4. Low Level 4 CH Stereo Input from 4 CH Audio Source head unit L R Front Outputs REAR FRONT Input Connections Input Connections fuse ET id q_a L R i level freq pass loi hi SS 1D ee Pa st En pass E 8 EN EN ur ur ur J Bridged Input Connection to a second amplifier H L head unit Y C 2CH AMPS m req bass low level full ipf hof boost pass pee fuse a l EPRE S cR amp rem Q o a 6 x Ji ground 12v CHY ci o o level an boost jee pase min max D 46cB 35 400 80 2 5K ACH AMPS 4 CH Bridged Input from 2 CH Audio Source oT oT oT oT CH142 Left Channel CH3 Right Channel Right Output Y adaptors Input Connections REMOTE hi level BASS BOOST i level freq pase low boost pass TE E amp OO exioooQ 2C H AMPS LEFT speaker RIGHT speaker freq bass f npr boost au anes i 99 GOOS mgm d boost pass pass SUE g GO 5 60106 SIE Basic 4CH Output 4CH AMPS alm R FRONT REAR Speakers Speakers Speaker Connections freq level ful ipf hpr ie pons p is i 6 eui Ue eta REMOTE hi level BASS BOOST i level freq bass low PH oost pass pass power LR E oy freq bass oo eo E o mg Om a io ele Bridged Mono Output 2 tamm MINIMUM SPEAKER 6 ET ECT i speaker a OHMS E Mono Subwoofer Amplifier will not power up ST a OBS EH E SS e Check for good ground connection u M M M M
5. 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 outputjacks connect the speaker output from the head unit to these inputs 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 Power LED Indicator This LED is illuminated when 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 Making Power Connections Low Level Stereo Input Connection
6. CH amplifier 2CH amplifier 2CH amplifier electronic technologies in order to deliver a superb listening experience table of contents 51 RMS 4 OHMS 2X40W 2X40WN 2X50W 4X35W ZK TSW 4X50W 2X1U0W 2XU5W ZX BOW 2X230W SPECIFICATIONS RMS 2 OHMS 2 X60W 2 X 60W 2 X 85W 4 X 55W 2X D5W 4 X 85W 2 X 150W 2 X 200W 2 X 230W 2 X 350W MAX OUTPUT 2 X 250W 2 X 300W 2 X 400W 4 X 250W 2 X 500W 4 X 400W 2 X 600W 2 X 800W 2 X 900W 2 X 200W This innovative system has been designed utilizing a 12 V DC Negative Ground LA370 LA470 570 770 970 1470 1870 2070 BRIDGE MODE 1X 500W 1X 600W 1X 800W 2 X 500W 1X 1000W 2 X 800W 1X 200W 1X 1600W 1X 1800W 1X 2400W FEATURES amp CONTROLS 2 X 250W 1X500W 2 X 400W IX800W power SEDE une LEGACY Red SERIES 2 amps incorporate two to eight LA670 870 FEATURES amp CONTROLS FREQUENCY RESPONSE 10 30 kHz MOSFETS in the different models ELECTRICAL WIRING INSTALLATION amp SETUP INPUT IMPEDANCE Ohms i 2 CH STEREO INPUT CONNECTIONS HIGH LEVEL INPUTS S e This design produces enough available voltage to supply the main amplifier 4 CH STEREO INPUT CONNECTIONS sections and still have a huge amount of reserve voltage for peak high BRIDGED INPUT CONNECTIONS INPUT r a 250 mV demand situations BASIC STEREO SPEAKER CONNECTIONS HIGH LEVEL INPUTS 2 5V MONO BRIDGED SPEAKER CONNECTIONS The Legacy line has been designed to ensure adequate headroom for even DOES OIM gary l g l q i WARRANTY MATCHING SPEA
7. KER IMPEDANCE the most demanding peaks and dynamic ranges found on today s CD s and STEREO MODE 2 4 OHMS 2 40HMS 2 40HMS 2 40HMS 2 40HMS 2 40HMS 2 40HMS 2 40HMS 2 40HMS 2 40HMS recordings Used properly these amplifiers will provide you with years of BRIDGED MODE 4 8 OHMS 4 80HMS 4 80HMS 4 80HMS 4 80HMS 4 8 OHMS 4 80HMS 4 80HMS 4 80HMS 4 80HMS listening pleasure MAXIMUM CURRENT DRAW 15 JA DA DA 20A 20A 30 A 30A 30A 40 A 40 A DIMENSIONS Wx H x L inches 10 4X 2 60 X 10 5 10 4X2 6X2 14X26XD27 04X26XM 10 4X26X14 10 4X2 6X15 5 10 4X2 60X15 5 0 4X26X 16 2 10 4X20X17 10 4X260X9 mm 264 X 66 X 268 264X66X304 264X66X322 264X66X 358 264X66X 358 264X66X394 264X66X 394 264X66X42 264X66X430 264 X 66 X484 NET WEIGHT LBS KG 13135 8 4 3 7 8 8 4 9 7 4 4 9 6 4 3 10 6 4 8 10 4 4 7 11 5 15 5 2 B 5 9 Features and Specific ations 600W x 2CH ELECTRONIC CROSSOVER NETWORK fuse E aoge nemore i ue Ts t ground BASS BOOST p r Ge level freq pass low hi TJ Jf JY TJ JJ Ae ooo Sep amp jas os OO emeoo EERE amp BE SK Features and Controls cJ e t 1 lt am weal at e 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 mat
8. Level Stereo Input Connection DU d DECRE EU 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 RCA inputs at the same time 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 other equipment is 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 rating ga 2 wm OQO e re boost pass pass may result in damage to your system which isn t covered by the manufacturer s warranty oo T9 oi goo o Setting Up and Turning On Your New Amplifier 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 wiring harness 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 head unit l Setthe 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 dow
9. MANUFACTURER S LIMITED TWO YEAR WVA R RANTY 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 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 IM PORTANT Pack carefully in original carton if possible We are not LEGACY SERVICE CENTER responsible for damage incurred in returning items for repair A letter 1600 63rd Street stating your exact street address daytime phone number and the Brooklyn NY 11204 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 Product Safety Act o
10. ch the output of the head unit to the amplifier If distortion is present reduce the setting of this control leg zo J I X A I ai Koko L EAA a 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 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 Power LED Indicator This LED is illuminated when 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
11. ery hot Check that the minimum speaker impedance for that model is correct Check for speaker shorts Check that there is good airflow around the amplifier In some applications an external cooling fan may be required Distorted sound e Check that the Level control s is set to match the signal level of the head unit e Check that all crossover frequencies are properly set Check for shorts on the speaker leads High squeal noise from speakers This is almost always caused by a poorly grounded RCA patch cord Troubleshooting
12. n and listen for background noise 4 Start your vehicle and again listen for background noise orange 5 By fine tuning the LEVEL control s you can reduce background and engine noise if present a These adjustments should only be made once After that use the head unit volume control to adjust the system volume not the LEVEL control s orange 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 from speaker terminals Electrical Wiring and Installation Input Connections pam or pass fuse level es So m 206 Lee mi f 4C H AMPS ba j boost PE pass freq level Ipf hpi min max O 4808 35 400 80 2 5 4 freq bass low level IPF hpF boost pass pass 1 fuse 911999 i ia ET j Tah High Level 4 CH Stereo Input m ying harnes mess from 4CH Audio Source floating ground connection 4C H AMPS Low Level 4 CH Stereo Input from 2 CH Audio Source Left Output head unit Cc orange orange black black black black orange orange Right Output REAR FRONT Y adaptors 5 oy ce y pene piis fuse m level fa hp idged O Si 100 6 eat gine T ra ground 12v bas boost pass pass OO dHe66R 4 fre b level sn pr npr BOOST pee pu d fuse axioO00 ai ei ET j freq bas s level frp BOOST E ma p ooo High Level 4 CH Stereo Input from 4CH Audio Source common ground connection
13. r 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 xu QUEM Friday 9AM to 2PM Eastern o LEGACY www legacycaraudio com SCREEN A ae p p p pp 00 4 OY Ut B U rT 1I F FP PFO PFO Pr rrr ANN NEN NE NE NE Sd OOOoOooooooo0 gt gt gt NH eB O 0 HIGH SPEED AK AM F USER S MANUAL Legacy Red Series 2 Amplifier Features allamps feature e Polished chrome finish w plexiglass panel e Fully adjustable electronic crossover network e Soft turn on off circuit e Remote control Bass boost 0 18dB 60Hz e Variable gain control e 2 ohm stereo stable e Remote turn on off e Bridgeable into 4 ohms e Hi low level inputs e MOSFET PWM power supplies e Power on LED indicator e LED protection indicator Congratulatio J ns pm L 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 S pec ifications LA3 0 LA470 LA5 O LAO O LA7 O LAS8 O LA9 O LA14 O0 LA1870LA2070 2CH amplifier 2CH amplifier 2CH amplifier 4CH amplifier 2CH amplifier 4CH amplifier 2CH amplifier 2
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