DLS Svenska AB A4, A8 Series, A5 Input and controls A7, ULTIMATE A7, Input Wiring, Low level input

ULTIMATE A7

Input and controls A7

FRONT SPEAKERS

HP-filter

SIGNAL INPUTS

HP-filter

LP-filter

REAR SPEAKERS

+LEFT- +RIGHT-

LEVEL

IN

FRONT

REAR

LEVEL

+LEFT- +RIGHT-

240

IN

IN

3,5V

LEFT RIGHT

LEFT RIGHT

240

2

3,5V

7V 0,2V

80

400

80 400

0,3 4

7V 0,2V

Hz

OUT

Hz

OUT

kHz

OUT

x20 change

by bottom switch	x10 change
	by bottom switch

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.

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:

A singhle RCA feeds all channels

Input

Amplifier front

Input

Front

Rear

Sub

x 1 Front

Rear

Sub

input

separate

input to

input to

HP

rear & sub

sub

LP

x 1

Sub input

x 10

x 20

from rear

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.

Front

Input

Rear

Amplifier front

Input

Sub

x 1 Front

Rear

Sub

input

separate

nput to

input to

HP

rear & sub

sub

LP

x 1

Sub input

x 10

x 20

from rear

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:

Separate input cables to all channels.

Front

Input

Rear

Amplifier front

Input

Sub

x 1 Front

Rear

Sub input

separate

input to

input to

HP

rear & sub

sub

LP

x 1

Sub input

x 10

x 20

from rear

6