COAXIALCOAXIAL
USER MANUALUSER MANUAL
MADE IN GERMANY
2
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.
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
Find your composition
Go to www.audiotec-fischer.com/compose to
explore the whole HELIX COMPOSE platform
3
Installation
*Contact your retailer or visit www.audiotec-fischer.com/compose for an up-to-date overview of available adaptors.
max.
8 mm
Attention: To avoid damage to the speak-
ers, do not use countersunk screws and
do not overtighten the screws!
Mounting Ci7 C165.2FM-S3
Option a:
Universal mounting
Option b:
Professional integration with optionally available
car-specic adaptor*
Option c:
Mounting with universal mounting adaptor
Universal speaker
adaptor
4
Woofer connection
cable (included)
Woofer connection
cable (included)
Cut o the plugs of the enclosed tweeter and woofer
connection cables and connect them to the DSP
amplier / amplier.
Option a: Universal connection, e.g. in active applica-
tions
Option b: Universal connection to the tweeter connector
and blade terminals via optional car-specic
harness or COMPOSE , e.g. in active
applications
Wiring
Optional car-specic wiring
harness or COMPOSE
+ (positive): large at terminal
- (negative): small at terminal
Included connection cable or
COMPOSE
+ (positive): red cable
- (negative): black cable
Connection cable
(included)
Ensure that all components are correctly connect-
ed in polarity, i.e. plus to plus and minus to minus.
The positive leads of the loudspeaker system are
marked red.
ATTENTION: In active conguration it is essential to set a
highpass lter in the preconnected DSP or DSP amplier.
Alternatively, the external crossover Ci7 FX-UNI.2 must be
used to prevent damage to the tweeter.
Recommended crossover frequencies for the highpass
of the tweeter
Slope Minimum crossover frequency
6 dB/Octave > 4.000 Hz
12 dB/Octave > 3.000 Hz
24 dB/Octave > 2.500 Hz
Connection to
DSP amplier / amplier e.g.
via COMPOSE
Option c: Connection to HELIX COMPOSE i7
Flex-Crossover (optionally available)
Tweeter
connec-
tion cable
(included)
Installation
Tweeter
connector
Tweeter
connector
5
Dimensions
Ci7 C165.2FM-S3
ø156.0mm
ø6.14”
ø165.0mm
ø6.50”
65.8mm
2.59”
ø142.0mm
ø5.59”
Two amplied DSP channels per speaker are required in active operation.
ATTENTION: In active conguration it is essential to set a highpass lter for the tweeter in the preconnected DSP
or DSP amplier.
Connection in active conguration
DSP amplier /
amplier
Signal source
CH1
CH2
CH3
CH4
The Ci7 C165.2FM-S3 is supplied with all the cables required to connect the crossover. Please refer to the crossover
user manual for recommended lter settings.
Connection in passive conguration with optional crossover Ci7 FX-UNI.2
DSP amplier /
amplier
Tweeter
Woofer
Tweeter
Woofer
6
Technical data
Ci7 C165.2FM-S3
Power RMS / Max. P 150 / 225 Watts
Frequency response 50 Hz - 30,000 Hz
Impedance Z 3 Ω
Sensitivity SPL
92 dB @ 2.83V / 1m
88 dB @ 1W / 1m
Outer diameter
(more data see left page)
Ø 165.0 mm / 6.50”
Installation diameter
(more data see left page)
Ø 142.0 mm / 5.59”
Installation depth
(more data see left page)
65.8 mm / 2.59”
Woofer
Impedance Z 3 Ω
DC resistance Re 3.0 Ω
Resonance frequency Fs 59 Hz
Mechanical Q factor Qms
3.99
Electrical Q factor Qes
0.64
Total Q factor Qts
0.55
Compliance Cms
572 μm/N
Equivalent air volume Vas
13.3 L
Force factor B*l
4.7 Tm
Cone area Sd
131 cm
2
Moving mass Mms 13.0 g
Mechanical resistance Rms
1.21 kg/s
Voice coil diameter Ø
37 mm
Voice coil winding height
13.4 mm
Max. linear excursion Xmax
+/- 3.7 mm
Tweeter
Impedance Z 4 Ω
Voice coil diameter Ø
20 mm
Features
Tweeter
Silk dome with coupling volume
Woofer
Ultra high damping (UHD) crafted paper cone, terminal and
Crossover 2-way active: two amplied DSP channels per speaker required
2-way passive: i7 FX-UNI.2 optionally available
7
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.
FlexMount car-specic adaptors
Looking for the right adaptor ring for your car?
No problem – with our FlexMount Finder.
The car-specic adaptor rings (sold separately) allow a tailored and acoustically optimized adaption
of the HELIX COMPOSE Ci7 C165.2FM-S3 to the vehicles original mounting location. Contact your retailer or visit
www.audiotec-scher.com/compose for an up-to-date overview of available adaptors.
AUDIOTEC FISCHER GmbH
Hünegräben 26 - 28
57392 Schmallenberg
Germany
Made in Germany
