MIDBASSMIDBASS
USER MANUALUSER MANUAL
ENGINEERED IN GERMANY
2
Congratulations!
General instructions
Dear Customer,
Congratulations on your purchase of this high-quality product.
HELIX COMPOSE highlights best quality, excellent manufacturing and state-of-the-art sound quality.
Thanks to more than 30 years of experience in research and development of audio products HELIX COMPOSE sets
new standards in the car audio speaker market.
We wish you many hours of enjoyment with your new HELIX COMPOSE components.
Yours
AUDIOTEC FISCHER Team
General instructions for installing HELIX
loudspeakers
To prevent damage to the speakers and possible inju-
ry, read this manual carefully and follow all installation
instructions. This product has been checked for proper
function prior to shipping and is guaranteed against man-
ufacturing defects.
For a proper performance and to ensure full warranty
coverage, we strongly recommend to get this product in-
stalled by an authorized HELIX dealer.
If you choose to perform your own installation read the
following information and precautions carefully.
Failure to follow the stated precautions may result in
personal injury and / or damage to the audio system or
vehicle.
1. Always make sure that the speaker will t into the in-
tended mounting location and that there is adequate
depth for the magnet system.
2. Check for adequate space between speaker and
window, window crank, power window mechanism,
seat, rear deck torsion bars, and other items which
may interfere with the speaker`s mounting. This
is very important if any hole cutting is required.
Detailed size information is indicated in the dimen-
sion section of this manual. Take care that the mount-
ing surface is at and free from all obstructions.
3. Ensure that the loudspeakers are correctly connect-
ed in polarity. Exchanging plus and minus may result
in signicant loss of sound quality. The positive leads
of the loudspeakers are marked red.
4. Make sure that all speaker wiring is fully protected
from cutting or wear at sharp edges, which can lead
to short circuits that may damage your head unit,
amplier and / or speaker system.
5. Verify that all connection wires are long enough in
order to avoid any mechanical stress on the wires or
the connectors.
6. Make sure that all components are mounted prop-
erly.
7. Do not mount the components where water may
splash on them.
8. The quality of the installation has a signicant eect
on the overall performance of the speaker system.
Treat each installation step with a high degree of
attention.
9. Avoid low frequency cancellation caused by air leak-
age between the speaker basket and the mounting
surface (e.g. mounted on a bended or uneven sur-
face or mounted in an oversized hole).
10. Mounting panel reinforcement may be necessary in
some cases in order to ensure a stable, torsion-free
and even surface. This can be achieved by mounting
the speaker on a metal, plastic or wooden sub-bae
behind the body or door panel. Consult an installa-
tion specialist for further advices.
11. In most cases you can use the original speaker
mounting locations in the doors, A-pillars, body pan-
els or the rear deck. If these are not available you
have to prepare your own secure installation place.
Due to their structural integrity and accessibility the
precut mounting holes should be used whenever
possible. Information on a proper mounting can be
found in the section “Installation” of this manual.
IMPORTANT: Never cut any metal that is an integral part
of an automobile`s safety or structural car body.
We strongly recommend that you operate the complete
audio system at low volume before nal installation. So
you can check whether each speaker is working before
securing the loudspeakers into their mounting locations.
Create your composition
Go to www.audiotec-fischer.com/compose to
explore the whole HELIX COMPOSE platform
3
Installation
Ensure that all components are correctly connected (phase), i.e. plus to plus and minus to minus.
The positive leads of the loudspeaker system are marked with a red stripe.
Mounting
Wiring
max.
8 mm
Attention: To avoid damage to the speak-
ers, do not use countersunk screws and
do not overtighten the screws!
Signal
Source (+)
Signal
source (-)
Connection to signal source
or factory cable harness
The warranty service is based on the statutory regulations. Defects and damage caused by overload or improp-
er handling are excluded from the warranty service. Any return can only take place following prior consultation, in the original packag-
ing together with a detailed description of the error and a valid proof of purchase. Technical modications, misprints and errors excepted!
For damages on the vehicle and the device, caused by handling errors of the device, we can’t assume liability. All HELIX speakers are tagged with a CE-Certication
mark. Thereby these devices are certied for the use in vehicles within the European Community (EC).
Warranty disclaimer
Correct disposal of this product
(Applicable in the European Union and other countries with separate collection systems)
If you want to dispose this product, do not mix it with general household waste. There is a separate collection system for used electronic products in accordance with
legislation that requires proper treatment, recovery and recycling. Contact your local government oce for details in locating a recycle facility close to you. Proper
recycling and waste disposal will help conserve resources and prevent detrimental eects on our health and the environment.
Made in China
AUDIOTEC FISCHER GmbH
Hünegräben 26
57392 Schmallenberg
Germany
Technical data
ø156.0mm
ø6.14”
ø166.0mm
ø6.54”
61.4mm
2.42”
ø143.0mm
ø5.63”
CB W165-S3
Power RMS / Max. P 80 / 120 Watts
Impedance Z 3 Ω
DC resistance Re 3.0 Ω
Frequency response 60 Hz - 3,500 Hz
Resonance frequency
Fs
62 Hz
Mechanical Q factor Qms
4.50
Electrical Q factor Qes
0.90
Total Q factor Qts
0.75
Compliance Cms
520 μm/N
Equivalent air volume Vas
14.5 L
Force factor B*I
4.1 Tm
Sensitivity SPL
92 dB @ 2.83V / 1m
88 dB @ 1W / 1m
Cone area Sd 141 cm²
Moving mass Mms 13.2 g
Cone material Injected polypropyl-
ene cone
Mechanical resistance Rms
1.10 kg/s
Voice coil diameter Ø
25 mm
Voice coil winding height
8.9 mm
Max. linear excursion Xmax +/- 2.5 mm
