Legacy Car Audio L A 5 7 0 Manuel D’Utilisation

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LA
470
2CH amplifier
LA
570
2CH amplifier
2 X 40W
2 X 60W
2 X 250W
1 X 500W
10-30 kHz
10 k-Ohms
100 Ohms
250 mV
2.5V
14.4 VDC/NEG GD (10.5-16V)
2-4 OHMS
4-8 OHMS
15 A
10.4 X 2.6 X 10.5
(264 X 66 X 268)
7.3 (3.3)
LA
670
4CH amplifier
4 X 35W
4 X 55W
4 X 250W
2 X 500W
(2 X 250W+1X500W)
2-4 OHMS
4-8 OHMS
20 A
10.4 X 2.6 X 14
(264 X 66 X 358)
9.7 (4.4)
LA
770
2CH amplifier
2 X 75W
2 X 125W
2 X 500W
1 X 1000W 
2-4 OHMS
4-8 OHMS
20 A
10.4 X 2.6 X 14
(264 X 66 X 358)
9.6 (4.3)
LA
870
4CH amplifier
4 X 50W
4 X 85W
4 X 400W
2 X 800W
(2 X 400W+1X800W)
2-4 OHMS
4-8 OHMS
30 A
10.4 X 2.6 X 15.5
(264 X 66 X 394)
10.6 (4.8)
LA
970
2CH amplifier
2 X 100W
2 X 150W
2 X 600W
1 X 1200W 
2-4 OHMS
4-8 OHMS
30 A
10.4 X 2.6 X 15.5
(264 X 66 X 394)
10.4 (4.7)
LA
1470
2CH amplifier
2 X 125W
2 X 200W
2 X 800W
1 X 1600W
2-4 OHMS
4-8 OHMS
30 A
10.4 X 2.6 X 16.2
(264 X 66 X 412)
11 (5)
LA
1870
2CH amplifier
2 X 150W
2 X 230W
2 X 900W
1 X 1800W
2-4 OHMS
4-8 OHMS
40 A
10.4 X 2.6 X 17
(264 X 66 X 430)
11.5 (5.2)
2 X 40W
2 X 60W
2 X 300W
1 X 600W
2-4 OHMS
4-8 OHMS
15 A
10.4 X 2.6 X 12
(264 X 66 X 304)
8.4 (3.7)
LA
370
2CH amplifier
LA
2070
2CH amplifier
2 X 50W
2 X 85W
2 X 400W
1 X 800W
2-4 OHMS
4-8 OHMS
15 A
10.4 X 2.6 X 12.7
(264 X 66 X 322)
8.8 (4)
2 X 230W
2 X 350W
2 X 1200W
1 X 2400W
2-4 OHMS
4-8 OHMS
40 A
10.4 X 2.6 X 19
(264 X 66 X 484)
13 (5.9)
specs
Features and Specifications
Congratulations
on your purchase of a new 
          
Legacy  Red  Series 2  amplifier!
Legacy Red  Series 2 Amplifier Features
• Polished chrome finish w/plexiglass panel
• Soft turn on/off circuit
• Variable gain control
• Remote turn on/off
• Hi/low level inputs
• Power on LED indicator
• Fully adjustable electronic crossover network
• Remote control Bass boost ( 0 – +18dB @ 60Hz )
• 2 ohm stereo stable
• Bridgeable into 4 ohms
• MOSFET PWM power supplies
• LED protection indicator
all amps feature:
table of contents
USER MANUAL
SPECIFICATIONS
LA370/LA470/570/770/970/1470/1870/2070
FEATURES & CONTROLS
LA670/870 FEATURES & CONTROLS
ELECTRICAL WIRING, INSTALLATION & SETUP
2 CH STEREO INPUT CONNECTIONS
4 CH STEREO INPUT CONNECTIONS
BRIDGED INPUT CONNECTIONS
BASIC STEREO SPEAKER CONNECTIONS
MONO-BRIDGED SPEAKER CONNECTIONS
TROUBLESHOOTING
WARRANTY
1
2
3
4
5
6
8
9
10
1 1
12
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 Red  SERIES 2  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.
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)