deutsch/english
BEDIENUNGSANLEITUNG
INSTRUCTION MANUAL
2-Wege Komponentensystem
2-Way Component System
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7
Dear customer
Congratulations on your purchase of this first-class loudspeaker system of the PRECISION series.
This HELIX 2-way component system with innovative technology „Made in Germany“ is designed and produced with
highest quality demands and convinces with its perfect
tuning capabilities and dynamic music reproduction.
AUDIOTEC FISCHER wishes you maximum enjoyment and
listening pleasure with your new HELIX speakers.
.
About HELIX
Since its introduction in 1997 the HELIX brand sets new
standards for sound excellence, technology and quality in
the development and production of loudspeakers and
amplifiers.
This outstanding position has been earned with true inno-
vations, e.g. the exploration of new circuitry concepts and
materials, and guarantees that every HELIX customer owns
a first class state-of-the-art product.
AUDIOTEC FISCHER, the company behind HELIX, was founded in 1990. Today it is one of the world’s most renowned
enterprises in the car hifi market.
General information
This manual has been designed to make HELIX PRECISION
automotive loudspeaker installation and ownership as
trouble-free as possible. Please read through this manual
completely before attempting any installation steps and
familiarize yourself with your new speaker system.
You will need your purchase receipt as proof of purchase
for any and all warranty repairs and for insurance purposes.
Keep your receipt, owner's manual, and packing materials
in a safe location for possible future use.
Pre-installation instructions
It is recommended that you have your new HELIX PRECISION automotive loudspeakers professionally installed by
your authorized HELIX dealer. This will ensure the use of
proper installation techniques and materials, and will save
much time and effort. 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 the audio system or
vehicle.
A. Always make sure the speaker will easily fit into the
intended mounting location and that there is adequate
cavity depth to accept the magnet structure.
B. Check for adequate clearance between speaker and
window, window crank, power window mechanism, seat,
glove box, rear deck torsion bars, and other items which
may interfere with the speaker's mounting. This is especially important if any hole cutting is required.
Complete speaker, mounting size and depth requirements
can be found at the end of this manual. A good way to
confirm speaker place meet on a door or body panel is to
place the speaker's die cast mounting ring onto the surface. Check for a flat mounting surface, free from all obstruction.
C. The method of installation chosen and level of execution
will effect the overall performance of the speaker system.
Treat each installation step with a high degree of attention.
D. Do not mount the speaker where water may splash the
woofer cone.
A plastic cup or some heavy gauge plastic sheeting may be
needed in some locations that are exposed to moisture
from behind the body panel.
E. Care must be taken to prevent low frequency cancellation caused by air leakage between the front and rear of the
speaker (such as when mounted on a curved or uneven
surface, or when mounted in an oversized hole).
F. Mounting panel reinforcement may be necessary in
some cases in order to prevent surface flex. This can be
achieved by mounting the speaker on a metal or wooden
sub-baffle behind the body or door panel. Consult an installation specialist for further direction.
G. Unless you are replacing existing speakers of same size,
mounting locations will have to be cut into the doors, body
panels, or rear deck. In some cases speaker mounting
holes will be precut in the doors, body panels, or rear deck
steel. Due to their structural integrity and accessibility.
These precut mounting holes should be used whenever
possible.
IMPORTANT:
Never cut any metal that is an integral part of an automobile's safety or structural supportsystem.
HELIX PRECISION Speaker Installation
NOTE. HELIX strongly recommends that you operate the
complete audio system at low volume before final installation of your HELIX PRECISION automotive loudspeakers.
This will allow a trial listening test before securing the loudspeakers into their mounting locations.
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Woofer installation
Main features
CAUTION:
Make sure that all speaker wiring is fully protected
from cutting or wear. Any short circuits developing as
a result could severely damage the radio/cassette unit
or amplifier. Make sure that all speaker wires easily
reach the speaker terminals with stress on the wire or
connectors.
Securing the loudspeaker
Once you have tested the complete speaker system and
have confirmed correct operation, turn the audio system off
and prepare the loudspeaker for final mounting.
1. Place the loudspeaker within the mounting ring as
shown in the illustration below.
2. Position the loudspeaker assembly into the mounting
hole and confirm correct mounting screw hole location.
Proceed to insert mounting screws through the loudspeaker mounting assembly and use the provided screw clips to
capture the screw. Tighten all screws evenly.
3. Place the speaker grille within the basket and mounting
ring and make sure the grille makes contact with the grille
mounting adhesive.
H 236 PRECISION
● 25 mm soft dome tweeter with neodyme magnet
● 165 mm mid/bass with paper cone
● special rubber edge surround for high loadability
and long service life
●
high-quality, stable metal basket for reducing resonance
● Euro-DIN basket for easy installation in virtually any
vehicle type
● solid grille for effective speaker protection
H235 PRECISION
● 25 mm soft dome tweeter with neodyme magnet
● 130 mm mid/bass with paper cone
● special rubber edge surround for high loadability
and long service life
●
high-quality, stable metal basket for reducing resonance
● Euro-DIN basket for easy installation in virtually any
vehicle type
● solid grille for effective speaker protection
H234 PRECISION
● 25 mm soft dome tweeter with neodyme magnet
● 100 mm mid/bass with paper cone
● special rubber edge surround for high loadability
and long service life
●
high-quality, stable metal basket for reducing resonance
● Euro-DIN basket for easy installation in virtually any
vehicle type
● solid grille for effective speaker protection
Flexible 2-way frequency crossover
with
- tweeter level adjustment -3 / 0 / +3 dB with
gold plated repositionable jumpers
- 4 ohm / 2 ohm switchable for the operation of
two woofer systems
- integrated tweeter protection
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Crossover connection
Tweeter installation
Surface mountFlush mount
Angle mount
counterclockwise counterclockwise counterclockwise
to amplifier
tweeter
mid/bass speaker
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Dimensions
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Due to the high quality standard HELIX products achieved an
excellent international reputation. Therefore we grant a warranty
period of 2 years.
The products are carefully checked and tested during the entire
production process. In the case of service note the following:
1) The 2 years warranty period commences with the purchase of
the product and is applicable only to the original buyer.
2) During the warranty period we will rectify any defects
due to faulty material or workmanship by replacing or reparing the defective part at our decision.
Further claims, and in particular those for price reduction,
cancellation of sale, compensation for damages or subsequential damages, are excluded. The warranty period is not
altered by the fact that we have carried out warranty work.
3) Unauthorized tampering with the product will invalidate this
warranty.
4)
Consult your authorized dealer first, if warranty service is
needed.Should it be necessary to return the product to the
factory, please insure that
a) the product is packed in original factory packing in
good condition
Warranty regulations
b) the product is shipped prepaid, i.e. at your expense and
risk
c) the receipt/invoice as proof of purchase is enclosed
5) Excluded from the warranty are:
a) Shipping damages, either readily apparent or concea-
led (claims for such damages must be immediately
notified to the forwarding agent).
b) Scratches in metal parts, front panels or covers etc.
This must be notified to your dealer within 5 days of purchase.
c) Defects caused by incorrect installation or connec-
tion, by operation errors, by overloading or by external
force.
d) Products which have been repaired incorrectly or
modified or where the product has been opened by
other persons than us.
e) Consequential damages to other equipments.
f) Reimbursement when repairing damages by third
parties without our previous permission.
g) Products with removed serial numbers.
Technical data
H 236 H 235 H 234 H 1
Power RMS/Max 60/80 Watts 50/70 Watts 40/60 Watts
Frequency range 50 Hz - 21 kHz 70 Hz - 21 kHz 90 Hz - 21 kHz 2,5 - 21 kHz
Sensitivity 90 db 1W/1m 90 db 1W/1m 89 db 1W/1m 94 db 1W/1m
Impedance 4 Ohms 4 Ohms 4 Ohms 4 Ohms
Mounting depth 65 mm 60 mm 48 mm
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