BEDIENUNGSANLEITUNG
INSTRUCTION MANUAL
deutsch/english
5-Channel High Power Amplifier
FIVE
GERMANY
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5
Dear Customer,
congratulations on your purchase of this high power HELIX
DARK Blue FIVE amplifier.
Developed and designed with state-of-the-art technology it
highlights excellent manufacturing and best quality and
sets new standards with an excellent price/performance
ratio.
The DB FIVE features a 4-channel-section with an integrated, variable active highpass frequency crossover for channel 1 and 2 and an active crossover with highpass, lowpass and bandpass for channel 3 and 4. The amplifier can
be bridged for more connecting options.
Channel 5 is a mono bass channel with an integrated, variable active crossover for lowpass and integrated bass boost
(0 to +18dB at 45 Hz).
Based on the numerous capabilities the DB FIVE
also can be used in full active mode without passive
crossovers.
We wish you many hours of enjoyment with your new
HELIX amplifier.
Yours
AUDIOTEC FISCHER Team
General installation instructions for HELIX amplifiers
To find out how HELIX amplifiers work best for you, read this
manual carefully and follow the instructions for installation. We
guarantee that this product has been checked for proper functioning before shipping.
Before you start installation, disconnect the car battery at the
minus pole. We would urge you to have the installation work carried out by a specialist as verification of correct installation and
connection of the unit is a prerequisite for warranty cover of the
HELIX amplifier.
Install your amplifier at a dry location where there is sufficient air
circulation to ensure adequate cooling of the equipment. For
safety reasons, the amplifier must be secured in a professional
manner. This is performed by means of four fixing screws screwed
into a mounting surface offering sufficient retention and stability.
Before drilling the holes for the screws, carefully examine the area
around the installation position and make sure that there are no
electrical cables or components, hydraulic brake lines or any part
of the petrol tank located behind the mounting surface - otherwise these could be damaged. You should be aware of the fact that
such components may also be concealed in the double-skin trim
panels/mouldings.
General instruction for connecting the amplifiers
The HELIX amplifiers may only be installed in motor vehicles
which have a 12-volt minus pole connected to the chassis ground.
Any other system could cause damage to the amplifier and the
electrical system of the vehicle.
The plus cable from the battery for the complete system should be
provided with a main fuse at a distance of max. 30 cm from the
battery. The value of the fuse is calculated from the maximum total
current input of the car audio system.
Install the cabling in a manner which precludes any danger of the
leads being exposed to shear, crushing or rupture forces. If there are
sharp edges in the vicinity (e.g. holes in the bodywork) all cables
must be cushioned and protected to prevent fraying.
Never lay the power supply cables adjacent to leads and lines
connecting other vehicle equipment (fan motors, fire detection
modules, gas lines etc.).
In order to ensure safe installation, use only high-quality connections
and materials. Ask your dealer for high quality accessories.
Signal inputs channel 5
Level control for input sensitivity channel 5
Bass boost level control channel 5
Frequency control low pass channel 5
Frequency control low pass channel 3/4
Frequency control high pass channel 1/2
Frequency control high pass channel 3/4
Switch full range/bandpass/high pass channel 3/4
Switch full range/high pass channel 1/2
Level control for input sensitivity channel 1/2
Level control for input sensitivity channel 3/4
Switchfor 2-/4-/5-channel mode
Power LED
Protection LED
Signal inputs channel 1 - 4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Connecting the battery cable
Connecting the remote cable
Connecting the ground cable
Fuse 2 x 30 Ampere
Speaker terminal
1
2
3
4
5
EQUIPMENT FEATURES AND CONTROL ELEMENTS DB FIVE
ENGLISH
1
32
5
4
67
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1012131620
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1 Connecting the ground cable
The ground cable should be connected to a central ground reference point (this is located where the negative terminal of the battery is grounded at the metal body of the vehicle), or to a bright
bare-metal location on the vehicle chassis, i.e. an area which has
been cleaned of all paint residues.
2 Connecting the remote lead
The remote lead is connected to the automatic antenna (aerial
positive) output of the head unit (radio). This is only activated if
the head unit is switched ON. Thus the amplifier is switched on
and off with the head unit.
3 Connecting the battery cable
Connect the +12 V power cable to the positive terminal of the
battery. Recommended cross section: min. 20 mm
2
.
4 Fuses
The input fuses are connected in parallel and provide protection
against an internal equipment fault, i.e. the system must be additionally protected by a further line fuse located in the vicinity of
the battery (max. distance from battery: 30 cm). The fuse rating
is 2 x 25 amperes.
5 Speaker terminals
To connect the speaker cables. See figures on page 7.
Never connect the loudspeaker cables with the car chassis gound. It damages your amplifier.
Ensure that the loudspeaker systems are correctly connected
(phase), i.e. plus to plus and minus to minus. Exchanging plus
and minus causes a total loss of bass reproduction.The plus pole
is indicated on most speakers.
The impedance per channel should not be lower than
2 ohm as overheating could cause a shut down of the amplifier.
6/20 Signal inputs
The HELIX DBamplifiers have RCA connectors for RCA cables that
can be connected with the pre-amplifier output of the line-outputs
of the headunit or with a pre-amplifier. This connectors are goldplated to ensure a better signal transmission.
7/15/16 Level controls for input sensitivity
These controls can be used to match the input sensitivity of the
individual channels to the output voltage of the connected head
unit. These controls are not volume controls and are solely intended for the purpose of sensitivity trimming. The control range
extends from 300 mV to 6 V.
8 Bassboost control
To raise the bass signal from 0 to 18 dB at 45 Hz.
9 Frequency control for channel 5
To control the frequency of subwoofer channel 5.
10/12 Frequency controls for channel 3 and 4
Control 10: To adjust the low pass filter between 50 Hz and
4 kHz.
Control 12: To adjust the high pass filter between 50 Hz and 4
kHz.
Caution! To avoid a loss of sound pressure make sure that
the crossover frequencies are seperated by 2 octaves
when adjusting the bandpass.
That means for example: When the lowpass signal is adjusted to
1 kHz, the highpass should be adjusted 2 octaves lower to 250 Hz.
(1 octave = double frequency or half frequency)
11 Frequency controls for channel 1 and 2
To adjust the highpass filter between 50 Hz and 4 kHz.
12 Frequency controls for channel 3 and 4
(see 10)
13 Switch full range / low pass, high pass
channel 3 and 4
14 Switch full range and high pass channel 1 and 2
7/15/16 Level controls for input sensitivity
These controls can be used to match the input sensitivity of the
individual channels to the output voltage of the connected head
unit. These controls are not volume controls and are solely intended for the purpose of sensitivity trimming. The control range
extends from 300 mV to 6 V.
17 Switch for 2-channel/4-channel/5-channel mode
4-channel mode: When head units without subwoofer output are
operated, channel 5 is supplied by the signals from all inputs (20),
this means, inputs 6 must not be connected.
5-channel mode: The subwoofer channel is supplied independently
from inputs 20, e.g. by a sub out of the head unit.
18 Power LED
Shows the operation mode of the amplifier.
19 Protection LED
The red LED indicates malfunctions of the amplifier.
The HELIX DB-amplifiers have several electronic protection circuits that shut off the amplifier at overheating, overloading,
short-circuit on loudspeaker, low-ohmic mode or defective power
supply.
Please check for connecting failures such as short-circuits, wrong
connections and over-temperature. If the amplifier does not turn
on it is defect and has to be send to your local authorized dealer
for repair service. A detailed description of the malfunction and
the purchase receipt has to be attached.
6
Due to the high quality standard Helix products achieved an excellent international reputation. Therefore we grant a warranty period of 2 years.
The products checked and tested carefully 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 owner.
2) During the warranty period we will rectify any defects
due to faulty material or workmanship by replacing or repai
ring the defective part at our decision.
Further claims, and in particular those for price reduction,
cancellation of sale, compensation for damages or subse
quential 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 fac
tory, please insure that
a) the product is packed in original factory packing in
good condition
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) Consoquential damages to other equipments.
f) Reimbursement when repairing damages by third
parties without our previous permission.
WARRANTY REGULATION
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Gewerbegebiet Lake II · Hünegräben 26 · D-57392 Schmallenberg
Tel.: ++49 (0) 29 72-97 88 0 · Fax: ++49 (0) 2972-97 88 88
E-mail: helix@audiotec-fischer.com · Internet: www.audiotec-fischer.com
Ausgangsleistung pro Kanal an 4 Ohm . . . . . . . . . . . 4 x 60/120 Watt + 1 x 250/500 Watt RMS/Musik
Ausgangsleistung pro Kanal an 2 Ohm . . . . . . . . . . . 4 x 90/180 Watt + 1 x 320/640 Watt RMS/Musik
Ausgangsleistung gebrückt an 4 Ohm . . . . . . . . . . . 2 x 180/360 Watt + 1 x 250/500 Watt RMS/Musik
Frequenzbereich . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hz - 30 kHz
Frequenzweiche:
Tiefpass, bei 24 dB oct. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hz - 4 kHz, 40 Hz - 400 Hz
Hochpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hz - 4 kHz
Bassboost Pegelanhebung Kanal 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 dB - 18 dB
Klirrfaktor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0,04%
TIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0,04%
Geräuschspannungsabstand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 98 dB
Eingangsimpedanz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 kOhm
Eingangsempfindlichkeit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mV - 6 V
Sicherung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 x 30 Ampere
Abmessungen (H x B x T) in mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 x 244 x 400
Gewicht netto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,6 kg
TECHNISCHE DATEN DB FIVE
Cont. power rating at 4 Ohms per channel . . . . . . 4 x 60/120 Watts + 1 x 250/500 Watts RMS/Music
Cont. power rating at 2 Ohms per channel . . . . . . . 4 x 90/180 Watts + 1 x 320/640 Watts RMS/Music
Cont. power rating bridged at 4 Ohms . . . . . . . . . 2 x 180/360 Watts + 1 x 250/500 Watts RMS/Music
Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hz - 30 kHz
Frequency crossover:
Low pass, at 24 dB oct. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hz - 4 kHz, 40 Hz - 400 Hz
High pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hz - 4 kHz
Bass boost channel 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 dB - 18 dB
Total harmonic distortion (THD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0,04%
TIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0,04%
Signal to noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 98 dB
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 kOhms
Input sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mV - 6 V
Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 x 30 Ampere
Dimensions (H x W x D) in mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 x 244 x 400
Weight net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,6 kg
TECHNICAL DATA DB FIVE
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SIGNAL INPUT CONNECTIONS 5-/4-/2-CHANNEL MODE
SPEAKER CONNECTIONS
5-channel mode
4-channel + subwoofer
3-channel mode
2-channel + subwoofer
Fully active mode
2 way active + subwoofer
7
2 - 4 Ohms
2 - 4 Ohms
2 - 4 Ohms
4 Ohms
2 - 4 Ohms
Channel 3 + 4 mid/bass 2 - 4
Ohms
Bandpass between 50 Hz and 4
kHz
Control 13 on BP
Control 10 LP
Control 12 HP
Channel 1 + 2 tweeter 2 - 4 Ohms
Control 14 on HI
Control 11 on required frequency
Frequency range 50 Hz - 4 kHz
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