Legacy Car Audio LA-1478 用户指南

LA-

978

2CH amplifier

2 X 100W

2 X 150W

2 X 600W

1 X 1200W

2-4 OHMS

4-8 OHMS

30 A

12.2 X 2 X 13.5

(309 X 53 X 343)

8.2(3.73)

LA-

1478

2CH amplifier

2 X 125W

2 X 200W

2 X 800W

1 X 1600W

2-4 OHMS

4-8 OHMS

30 A

12.2 X 2 X 15

(309 X 53 X 381)

8.8 (4.0)

LA-

1878

2CH amplifier

2 X 150W

2 X 225W

2 X 1000W

1 X 2000W

2-4 OHMS

4-8 OHMS

40 A

12.2 X 2 X 17

(309 X 53 X 432)

10.1 (4.62)

LA-

2078

2CH amplifier

2 X 200W

2 X 300W

2 X 1200W

1 X 2400W

2-4 OHMS

4-8 OHMS

50 A

12.2 X 2 X 19

(309 X 53 X 482)

11.4 (5.2)

· Phase Control 0-180 degree
· Remote Bass Control
· Input Impedance : 10K Ohms
· Soft Turn On/Off
· Advanced Protection Circuitry
· S/N Ratio:>90dB

LA-

2278

2CH amplifier

2 X 300W

2 X 450W

2 X 2000W

1 X 4000W

2-4 OHMS

4-8 OHMS

70 A

12.2 X 2 X 21

(309 X 53 X 532)

12.8 (5.8)

LA-

2478

Mono channel amplifier

200W mono

335W mono

2000W mono

20-250Hz( 3dB)

10 k-Ohms

100 Ohms

250 mV

14.4 VDC/NEG GD

(10.5-16V)

-478/578/778/978/1478/1878/2078/2278

Features and Controls

LA- 2478 also feature:

2 OHM

STABLE

40 A

12.2 X 2 X 12

(309 X 53 X 305)

7.3 (3.34)

Legacy American Amplifier Features

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.

Power LED Indicator

This LED is illuminated when the REMOTE ON

system is turned on.

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 Input (High Impedance)

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

Permits you to adjust the crossover frequency from

80 Hz to 2.5 kHz to suit the tweeters

High Pass Control

Permits you to adjust the crossover frequency from 35

Hz to 400 Hz to suit the subwoofers

Low Pass Control

Allows you to increase the bass signal level sent to the

speakers

Bass Boost Control

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.

Crossover Mode Switch

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.

Power Supply Terminals

Protects the amplifier as well as the automobile electrical

system from short circuit conditions.

Fuse

These terminals are 14K Gold plated for high conductivity

and minimum impedance loss. The terminals face

upwards for easy wiring in tight situations.

Speaker Terminals

Plug in the Remote Bass Boost Control wire in here.

Remote Bass Boost

specs

Features and Specifications

· Mono Block Subwoofer Amplifier
· 2 Ohm Stable
· MOSFET Power Supply
· Gold Plated RCA Inputs for Line Input & 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)

10Hz-30 kHz

10 k-Ohms

100 Ohms

250 mV

2.5V

14.4 VDC/NEG GD (10.5-16V)

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)