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 me-
ters). 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 input 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 in-
put.
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
5
Level
2V
0,7V
5V
0,5V
Input Level control
The input level control, 5V – 0,5 V,
matches the output of your radio to
the input of the amplifier. After instal-
lation is complete, make sure the in-
put 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 ra-
dio and amplifier levels are matched.
Subsonic filter
The
Subsonic filter
blocks the
very deepest frequencies from
reaching the subwoofers. It has a
variable frequency from 10 to 60
Hz. A typical setting is 25-30 Hz.
Low Pass Filter
The LPF ( low pass filter ) allow
low frequencies only and blocks
higher frequencies. A typical set-
ting is 60 – 80 Hz. Choose the set-
ting that sounds best in your car.
you can select between two diffe-
rent slopes, 12 dB/ octave or 24
dB/ octave.
LPF
50Hz 150Hz
Phase control
The phase control can be set
continuously from 0 - 180 degrees. This
is very useful when you want to adjust
the bass sound for best front stage
image.
Start on 0 and turn the control slowly
clockwise until you experience the bass
sound coming from the front.
It is also useful when you have more
than one CAD1000 and want all
speakers to play in phase.
You may have to change the polarity of
the speaker connection to get the best
result.
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.
Subsonic
10Hz 60Hz
PHASE
0
180
150
90
12dB
24dB
RCA Output
Use RCA Outputs to
connect additional
amplifiers.
Input Output
A
A
B
B
