Congratulations
on your purchase of a new
Legacy American Series 2 amplifier !
Legacy American Amplifier Features
LA-478/578/678/778/878/978 1478/1878/2078/2278 also feature:
• Soft turn on/off circuit | • Fully adjustable electronic crossover network |
• Variable gain control | • Remote control Bass boost ( 0 – +18dB @ 60Hz ) |
• Remote turn on/off | • 2 ohm stereo stable |
• Hi/low level inputs | • Bridgeable into 4 ohms |
• Power on LED indicator | • MOSFET PWM power supplies |
• LED protection indicator |
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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 American 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.
USER MANUAL table of contents
1~2 SPECIFICATIONS
3
FEATURES & CONTROLS
4
5
6ELECTRICAL WIRING, INSTALLATION & SETUP
72 CH STEREO INPUT CONNECTIONS
84 CH STEREO INPUT CONNECTIONS
9BRIDGED INPUT CONNECTIONS
11BASIC STEREO SPEAKER CONNECTIONS
12
13MONO BLOCK INPUT & SPEAKER CONNECTIONS
14TROUBLESHOOTING
Specifications | 2CH amplifier | 2CH amplifier | 4CH amplifier | 2CH amplifier | 4CH amplifier |
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OUTPUT POWER |
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RMS @ 4 OHMS | 2 | X 40W | 2 | X 50W | 4 | X 35W | 2 | X 75W | 4 X 50W |
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RMS @ 2 OHMS | 2 | X 60W | 2 | X 75W | 4 | X 55W | 2 | X 125W | 4 X 60W |
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MAX OUTPUT | 2 | X 300W | 2 | X 400W | 4 | X 250W | 2 | X 500W | 4 X 400W |
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BRIDGE MODE | 1 | X 600W | 1 | X 800W | 2 X 250W+500W | 1 | X 1000W | 2 X 400W+800W |
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FREQUENCY RESPONSE |
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| OR 2 X 500W |
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INPUT IMPEDANCE |
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LOW LEVEL INPUTS | 10 |
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HIGH LEVEL INPUTS | 100 Ohms |
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INPUT SENSITIVITY |
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LOW LEVEL INPUTS | 250 mV |
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HIGH LEVEL INPUTS | 2 | .5V |
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POWER SUPPLY VOLTAGE | 14.4 VDC/NEG GD |
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MATCHING SPEAKER IMPEDANCE |
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STEREO MODE | 2 | 2 | 2 | 2 |
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BRIDGED MODE | 4 | 4 | 4 | 4 |
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MAXIMUM CURRENT DRAW | 15 A | 15 A | 20 A | 20 A |
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40 A |
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DIMENSIONS, W x H x L, inches | 12.2 X 2 X 8.25 | 12.2 X 2 X 9.25 | 12.2 X 2 X 12 | 12.2 X 2 X 12 |
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12.2 X 2 X 15 |
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(mm) | (309 X 53 X 209) | (309 X 53 X 235) | (309 X 53 X 305) | (309 X 53 X 305) |
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NET WEIGHT, LBS (KG) | 5 | .2(2.37) |
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| 5 | .9(2.67) |
| 7 | .7(3.5) | 7 | .6(3.46) | (309 X 53 X 381) |
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| 9.1(4.4) |
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Features andspecsSpecifications