Clas Ohlson SFW-6580A Bedienungsanleitung
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Active subwoofer
Aktiv subwoofer
Aktiv subwoofer
Aktiivisubwoofer
Art.no Model
38-4167 SFW-6580A Ver. 201011
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3
English
8″ Active subwoofer
Art.no 38-4167 Model SFW-6580A
Please read the entire instruction manual before using the product and save it
for future reference. We reserve the right for any errors in text or images and any
necessary changes made to technical data. If you have any questions regarding
technical problems please contact Customer Services.
Contents
• Subwoofer
• External volume control
• External volume control connector wire
• High level input cable
• Support leg with screw
• Double-sided tape
• Instruction manual
Safety
• Do not open and try to repair the subwoofer yourself. The casing houses non-
insulated components. Touching these can lead to fires or electric shocks.
• Do not expose the product to moisture or extremely high or low temperatures.
• Do not use the subwoofer if the casing, volume control or cable is damaged in
any way.
• Unplug the subwoofer and stop using it immediately if it emits any unusual
odours or smoke.
Product description
8″ active subwoofer. Low-profile for mounting in confined places such as under
car seats.
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3 4 5 6 7
12
6
5
7
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31 2
Fig. 2
Fig. 1
Buttons and functions
Front
1. REMOTE – External volume
control input.
2. LEVEL – Input signal adjuster.
3. SUB SONIC – Adjustable Filter
from 20 to 50 Hz. Prevents very low
frequencies from reaching
the subwoofer.
4. BASS BOOST – Increases the
volume of the bass, 0 to +12 dB.
5. LPF – Low Pass Filter. The subwoofer
is limited to sound under the set
frequency, 50 to 150 Hz.
6. PHASE – Phase control 0/180
degrees. Helps compensate for time
delays in the sound system. This
sometimes occurs if the subwoofer
is at the back of your car.
7. POWER/PROTECT – LED power
indicator. Shines with a green light
if everything is normal. Shines with
a red light if one of the protection
devices has activated.
Back
1. GND – Earth
2. REM – Remote
3. + 12 V
4. FUSE: 15 A
5. Spare fuse
6. Low level input
7. High level input (used if car stereo
lacks low level output).
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Fig. 4
Fig. 3
Mounting
• N.B. Make sure that the car and head unit are not
conducting any current by disconnecting the nega-
tive lead from the car battery terminal.
• Before drilling mounting holes for the subwoofer, make sure that you will not dam-
age any vital parts of the car by doing so. Particular care should be exercised
when working close to fuel tanks, fuel lines, hydraulic lines and electrical wiring.
• Make sure that the subwoofer and all connected parts are firmly secured so that
they cannot move around and damage anything in the event of sharp braking.
• Mount the subwoofer in such a way that none of its cables is uninsulated, lying
against a sharp edge, pinched or can be damaged in any way.
• If the fuse needs replacing, use only a fuse of the same rating (15 A).
• Find a suitable location to mount the subwoofer, where there is adequate
air circulation.
Mounting example:
a) Mounting with self-adhesive tape
1. Clean and vacuum the mounting location thoroughly.
2. Stick a strip of the self-adhesive tape where the subwoofer is to be mounted.
3. Press the subwoofer firmly onto the tape.
b) Mounting with support legs
1. Clean and vacuum the mounting location thoroughly.
2. Screw the support legs onto the subwoofer using the 8 screws provided.
3. Before drilling any holes, make sure that you will not damage any vital parts of
the car. Particular care should be exercised when working close to fuel tanks, fuel
lines, hydraulic lines and electrical wiring.
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8
Fig. 7
Fig. 6
Fig. 5
4. Mark out the position of the 4 holes and drill carefully, making sure not to damage
any wiring or fuel lines.
5. Attach the subwoofer using the 4 provided screws.
Connections
• Read the entire instruction manual carefully before mounting the subwoofer
and commencing any wiring.
• Think about how just your installation is to be connected and make sure
you understand the wiring system.
• Make sure that you have the correct tools.
• The instruction manual will help you carry out the installation yourself, but
if you are not sure you should let a tradesman carry out the work.
N.B. Do not run power leads next to the low level (line in/out) audio cables. The power
leads can generate a whining sound in the subwoofer. Run these cables on separate
sides of the car to avoid interference.
Connecting RCA low-level cable (Recommended)
1. Connect a good quality length of signal cable to the RCA low-level (line out) output
on your car stereo.
2. Connect the other end of the cable to the RCA low-level (line in) input
on your subwoofer.
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8
Black
White
L -
White/black
L+
Gray
R-
Gray/black
R+
REMOTE
Volume controll
Fig. 9
Fig. 10
Fig. 8
Connecting high-level cable (speaker cables)
Should only be used if your car stereo lacks a low
level output.
1. Connect the provided cable to the speaker
cables form your car stereo as shown.
2. Connect to the high-level input (fig. 2 point 7)
on your subwoofer.
N.B. Many car stereos have both high-level and
low-level outputs. Use either the high- or the low-
level outputs, not both at the same time.
Connecting the loose volume control
1. Mount the volume control in a safe and
easily accessible place, so that it does not
negatively affect traffic safety.
2. Connect to the volume control cable to
REMOTE (fig. 1 point 1) on your subwoofer.
12 V connections
1. Connect an earth cable between GND on the
subwoofer and the chassis of your car. Make
sure that the cable is as short as possible,
preferably not over 50 cm and with an area
of at least 5 mm². Scrape of paint from the
chassis to ensure a good connection. Use
a tooth lock washer if possible. Cover the
connection with grease or paint to protect it
from corrosion. N.B. If the earth connection
is not good enough, the speakers can make
a whining sound.
2. Connect a cable from REM on the subwoofer
(fig.2 point 2) to the car stereo’s REM output
or to the powered aerial connection. The
amplifier will then come on automatically as
soon as the stereo is turned on. Alternatively,
use the remote cable which is often built into
the RCA low-level cable and connect it to
REM on your subwoofer. If your car stereo
lacks a remote input, you can connect a
cable from REM on the subwoofer to 12 V
via a fuse in the car which becomes live
when the ignition is turned on.
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3. Connect a cable of at least 5 mm² to the + 12 V on the subwoofer (fig. 2 point 3).
Run the cable to the car battery and attach a fuse holder close to the battery.
N.B. The distance between the fuse holder and the battery should not be more than
30 cm. Connect another cable, this time to the positive terminal of the car battery.
4. Turn the volume of the stereo down to 0. Turn the level control on the subwoofer
(fig. 1 point 2) to min. and the loose volume control to min.
5. Insert a fuse into the fuse holder next to the car battery.
6. Reconnect the car battery’s negative cable.
Input signal setting
In order for the subwoofer to be compatible with various types of car stereos with
varying signal levels, the input signal can be adjusted.
1. Turn on the car stereo and subwoofer.
2. Set the car stereo’s bass/treble control to 0 and the equalizer to 0.
3. Play a CD or similar and turn up the volume on the stereo to approx ¾.
4. Turn up the subwoofer level control until the sound level is desirable.
N.B. The level control is not the same as a volume control. It is only
for adjusting the input signal from the car stereo.
5. Adjust the Sub Sonic/LPF filter, Bass Boost and Phase for best results. It helps
if you can get a friend to help, one person adjusts while the other listens.
Use
The LED shines with a green light if everything is normal.
If the LED shines with a red light, one of the following has occurred.
• The level control is too high.
• There is a short-circuit somewhere.
• The subwoofer is overheated.
• Adjust the level control and check all connections before turning
the subwoofer back on again.
• If the subwoofer is overheated, let it cool before turning it on again.
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Troubleshooting guide
The subwoofer does
not start.
• Check all fuses.
• Check the earth connection.
• Make sure that the REM connection on the
subwoofer has at least 3 V DC.
• Check that there is at least 12 V at the 12 V
connection.
• Check that the LED light is not red. If it is red, refer
to the section “Use”.
The LED shines red
when the stereo is
turned on.
• Check that the speaker cables are
not short-circuited.
• Check the settings of the stereo volume and sub-
woofer level control (refer to Input signal setting).
Low volume. • Turn up the level control.
• Check the Sub Sonic/LPF filter setting.
Poor sound, noise
and/or distortion.
• Disconnect the RCA low-level cables. If the
distortion disappears, the cable is the culprit.
Try running another RCA cable across the seats in
the car. If the distortion disappears, rerun the RCA
cable. Always use good quality RCA cable.
• Check all earthing points; all parts should preferably
be earthed at the same point.
• Check the earth lead from the battery and its
connection to the chassis.
• Make sure that all cables are correctly connected.
• Check that the cables are not damaged in any way.
• Make sure that the power and speaker cables are
not running close to each other.
• Check the settings of the stereo volume
and subwoofer level control (refer to Input
signal setting).
• Check the Sub Sonic/LPF filter setting.
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No sound. • Check the fuses.
• Check the earth lead.
• Make sure that the REM connection on
the subwoofer has at least 3 V DC.
• Check the RCA low-level cables and
their connections.
• Check the speaker cables.
The subwoofer be-
comes extremely hot.
• Make sure that air can circulate around
the subwoofer.
• Sometimes a cooling fan needs to be installed.
• Overheating can lead to the speakers having too low
an impedance.
Disposal
Follow local ordinances when disposing of this product. If you are unsure of
how to dispose of this product, please contact your local authority.
Specifications
Max. power output 200 W
RMS output 65 W
THD < 0.4 %
Signal to noise ratio > 90 dB
Frequency response 20 Hz–150 Hz
Input sensitivity high-level 0.5 V
Input sensitivity low-level 110 mV
Filter low pass 50 Hz–150 Hz
Filter subsonic 20 Hz–50 Hz
Bass Boost 0 to 12 dB
Phase control variable 0–180 º
Fuse 15 A
Size 348 × 248 × 71 mm
Dieses Handbuch passt für folgende Modelle
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