DLS A1 Specifications download pdf (Page 6)

Low level input

Use a pair of shielded stereo audio cables with RCA

type jack. Most trunk-mount amplifiers need a 20

feet RCA cable ( appr 5 – 6 meters). Most under the

seat installations require 12 feet ( 2 – 3 meters) RCA

cables. Avoid placing the RCA cable close to spea-

ker cables, power cables and

remote control cable.

The amplifier has separate

input sockets for front, rear

and sub channel.

There are two switches

located under the amplifier

bottom plate. With these switches you can choose

different ways to connect the RCA input sockets

internally. You can use either one, two or three

separate RCA cables for the feed. Use any of the

following:

1. One RCA cable feed to all amplifier inputs.

If you want to use only one RCA cable to feed all

inputs set the switches like in the example below:

Input and controls A7

Input Wiring

DLS A7 has a more sofisticated input configuration and

can be connected in different ways which are described

here. Inputs are low level from the RCA output of the

car stereo head unit.

ULTIMATE A7

FRONT SPEAKERS

+LEFT- +RIGHT-

REAR SPEAKERS

+LEFT- +RIGHT-

SIGNAL INPUTS

FRONT REAR

LEFT RIGHT LEFT RIGHT

3,5V

7V 0,2V

3,5V

7V 0,2V

LEVEL

x20 change

by bottom switch

240

80 400

OUT

HP-filter

240

80 400

OUT

HP-filter

0,3 4

kHz

OUT

LP-filter

LEVEL

x10 change

by bottom switch

Amplifier front

x 20

x 1

x 10

Input

Front Rear

Input

Sub

Front

input to

rear & sub

Rear

input to

sub

Sub input

from rear

Sub input

separate

A singhle RCA feeds all channels

2. Two RCA cables. One to front input and the

other to rear and sub inputs.

If you want to use a separate RCA cable to the front

channels and another RCA cable to rear and sub

channels connect the cables and set the switches

like in the example below:

Separate input cables to front and rear. Then

internally connected to the sub channel.

Amplifier front

x 1

x 10

Input

Front Rear

Input

Sub

Front

nput to

rear & sub

Rear

input to

sub

Sub input

from rear

Sub input

separate

x 20

3. Three RCA cables. One to front input, one to

rear input, and the third to sub input.

If you want to use separate RCA cables to all inputs,

set the switches like in the example below:

Amplifier front

x 20

x 1

x 10

Input

Front Rear

Input

Sub

Front

input to

rear & sub

Rear

input to

sub

Sub input

from rear

Sub input

separate

Separate input cables to all channels.

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DLS A1 Specifications Page 6

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