DLS ULTIMATE A1 Owner's Manual page 6

Input and controls A7
FRONT SPEAKERS
LEVEL
+LEFT- +RIGHT-
3,5V
80 400
7V 0,2V
x20 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
Front Rear
x 1 Front Rear
input to input to
rear & sub sub
HP
x 1
x 20
6
SIGNAL INPUTS
HP-filter
IN
FRONT REAR
240
LEFT RIGHT LEFT RIGHT
Hz
OUT
Input
Sub
Sub input
separate
LP
Sub input
x 10
from rear
HP-filter
LP-filter
LEVEL
IN
IN
240 2
3,5V
80 400
0,3 4
7V 0,2V
Hz
kHz
OUT OUT
x10 change
by bottom switch
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.
Input
Front Rear
x 1 Front
nput to
rear & sub
HP
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:
Separate input cables to all channels.
Input
Front Rear
Front
x 1
input to
rear & sub
HP
x 20
ULTIMATE A7
REAR SPEAKERS
+LEFT- +RIGHT-
Input
Amplifier front
Sub
Sub input
Rear
separate
input to
sub
LP
Sub input
x 1
x 10
from rear
Input
Amplifier front
Sub
Sub input
Rear
separate
input to
sub
LP
Sub input
x 1
x 10
from rear