Bedienungsanleitung DLS RA 50 (Seite 5 von 16) (Englisch)

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High Level Input for ch 1, 2, 3 & 4

Connect left and right speaker wires coming from

the car stereo to the high level input as shown. You

must connect both plus and minus as the inputs

are balanced, connecting plus only gives lower level

and bad sound quality. By changing the polarity of

plus and minus, you can change the phase. The

input signal to the sub channel (CH5) is also

fed from the High level inputs if the SUB INPUT

selector switch is in the upper position.

High level input sockets

Automatic turn on when using high level input.

With the ”Input selector switch” set to High level

and the ”High level Auto Start” switch set to IN,

the amplifier turns on automatically on high input.

You don´t need to connect a separate remote wire

from your head unit. If you want to use high level

input but use a remote start wire, just set the ”High

level Auto Start” switch to OUT. Read more on

next page.

Input and controls

Input Wiring

Inputs may be low level from the RCA output of the

car stereo, or high level from the car stereo speaker

output. Low level = RCA is to prefer for the best sound

quality.

RA50

Hi level input plug.

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

speaker cables, power

cables and remote control

cable. Connect to RCA input

sockets.

Set the input selector switch

to position ”Low level”.

SUB INPUT selector

switch in bottom plate

The amplifier has a separate input for the sub

channel (CH 5). The signal to the sub channel can

either be fed from the input for CH 1 & CH2, or

separate through the SUB IN RCA connector.

There is a switch under the bottom plate.

With this switch in the upper position the sub

channel gets it´s signal from CH1 & CH2 inputs.

With the switch in lower position, the sub channel

(CH5) is fed from the separate SUB input.

This is useful if you prefer to use the separate

subwoofer output coming from many head units. If

your head unit has only one RCA preout, set the

selector to the upper position instead.

CH2 CH1

Green: Left +

Black: Left -

Black: Right -

Grey: Right +

CH4 CH3

Hi level input plug.

Hi level input

socket on

amp.

Green: Left +

Black: Left -

Black: Right -

Grey: Right +

Input Mode Selector

CH1 from Input 1

CH2 from Input 2

CH3 from Input 3

CH4 from Input 4

Sub CH5 from

Input 1+2

CH1 from Input 1

CH2 from Input 2

CH3 from Input 3

CH4 from Input 4

Sub CH5 from

SUB INPUT

Hi level input

socket on amp.

Hi level / Low level input selector switch

To ensure best possible performance from the

amplifiers a switch is installed to select between Hi

and Low input.

When using High Level input:

Push in the button to position

”High”

When using Low level input:

Push out the button to position

”Low”

NOTE!

When using high level

input the selector

must be in it´s upper

position to feed the

sub channel with sig-

nal.

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