8
High Pass: 15 - 80 Hz
26 Control to raise the center frequency
This control enables the center frequency set at control
27 to be raised from 0 to 9 dB if the switch 19 is on HP
or LP position.
27 Adjustment of center frequencies
Control 27 can be used to select the frequency from 30-
120 Hz of the adjusted lowpass (control 23). this can be
enhanced with control 26 from 0 to 9 dB.
It is usefull to emphasize or correct a determined fre-
quency of the subwoofer (kickbass)
Important Notice:
The amplifier A2 Competition has a temperature con-
trolled innovative power supply.
This newly developed feature makes possible that the
amplifier reduces the output power at very high tempe-
rature. It protects the amplifier from destruction and
overheating shut off. This power reduction is not audible
in normal application because it only comes into affect
at high power peaks and when the amplifier gets very
hot due to high outside temperatures. If the amplifier
shuts off due to overheating (> 95°C) it can take some
minutes until it turns on again.
Also due to the integrated safety electronic the amplifier
turns on with a delay of 3-4 seconds. This is because of
the internal check up of all relevant voltages that ensure
a perfect operation.
This amplifier has several electronic protection circuits
that shut off the amplifier at overheating, overloading,
short-circuit on loudspeaker, low-ohmic mode or defec-
tive power supply.
It is indicated through different LEDs (see CPS system
at point 10-12).
Please check for connecting failures such as short-cir-
cuits, 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.
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. The plus
pole is indicated on most speakers.
The A 2 is adjusted as 2-channel amplifier before shipping.
Important informations for connecting loudspeaker
The Helix A2 Competition has 2 integrated power
amplifiers. Each of them is 1 ohm stable. That means a
loudspeaker impedance can be connected on each chan-
nel. In bridged mode two each amplifiers are working
together as one channel. In this case pay attention that
each channel has to process half of the connected impe-
dance.
Example: If a 4 ohms loudspeaker is connected to a brid-
ged amplifier, it means 2 ohms for each channel and so
1 ohm with a 2 ohms loudspeaker. Therefore 2 ohms is
the lowest impedance that can be connected to a bridged
pair of channels, because each single channel is 1 ohm
stable.
The impedance per channel should not be lower than
1 ohm.
We guarantee a lot of pleasure with the A2 Competition
if you take notice of this informations.
Due to the high quality standard Helix products achie-
ved 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 repairing the defective part at our decission.
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 invali-
date this warranty.
30 Hz
120 Hz
200
20
30
50
100
300
500
dB
Hz
variable
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
b) the warranty card has been filled out and attached to
the product
c) the product is shipped prepaid, i.e. at your expense
and risk
d) 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 exter-
nal 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.
0 dB
9 dB
500
50
100
200
300
20
30
variable
Hz
dB
2K
5K
Hz
650 Hz
6 kHz
variable
Warranty Regulation
Gewerbegebiet Lake II · Hünegräben 26
D-57392 Schmallenberg
Tel.: ++49 (0) 29 72-97 88 0
Fax: ++49 (0) 29 72-97 88 88
E-mail: [email protected] ·
Internet: www.audiotec-fischer.com
ENGLISH
