Bedienungsanleitung DLS CA12 (Seite 5 von 8) (Englisch)

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Important

Use either the low level or the high level input, do

not use both at same time.

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 in-

put socket A & B.

High Level Input

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.

Hi level input plug on amp.

Automatic turn on when using high level input.

With the Hi/Low input swich set to Hi, the amplifier turns

on automatically on high input. You dont need to connect

a separate remote wire from your head unit.

When using High Level input:

Set the switch to position ”Hi / Level”

When using Low level input:

Set the switch to position ”Low / Level”

If the switch is set to wrong

position, the amplifier still

works, but the risk for

disturbances or distortion

increases.

Input and controls

Input Level control

Subsonic filter

The Subsonic filter blocks

the very deepest frequencies

from reaching the subwoofers.

It has a variable frequency

from 15 to 50 Hz. A typical set-

ting is 25-30 Hz when used

with subwoofers.The filter can

be switched IN-OUT.

Low Pass Filter

High Input

White : A ch.+

White/Black : A ch.-

Grey/Black : B ch.-

Grey : Bch.+

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.

The input level control, 5V – 0,25

V, matches the output of your ra-

dio to the input of the amplifier. After

installation is complete, make sure

the input of the amplifier is turned

down all the way ( counter-

clockwise at 5V ). Play a tape or

CD, make sure all bass or treble

settings or equalizer are flat, and

turn the volume of the radio up until

you just start to hear distortion.

Turn the volume control down just

a bit. On the amplifier increase the

input level control ( clockwise or to

the right ) until you just start to hear

distortion, then back the level

control just a bit. Now your radio

and amplifier levels are matched.

Level

5 V 0,25 V

Hi level

Low level

Subsonic

Off On

40Hz 100Hz

15Hz

150Hz

LPF

Off 24 dB

80Hz 200Hz

50Hz

500Hz

12dB

The LPF ( low pass filter )

mostly used for subwoofers. It

will allow low frequencies only

and blocks higher frequencies.

A typical setting is 50 – 80 Hz.

The filter can be switched in

and out and you can select

between two different slopes,

12 dB/ octave or 24 dB/ octave.

Choose the slope and the set-

ting that sounds best in your

car.

CA12

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DLS CA12 Seite 5

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