Helix AMPLIFY 201 X-OVER handleiding
Handleiding
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18
Hardware conguration
7. Adjusting the lowpass lter
The crossover frequency of the lowpass lter
can be adjusted from 50 Hz to 250 Hz using
the lowpass lter control (page 14, point 8).
This control is always activated and its adjust-
ment is mandatory.
In combination with the subsonic lter
(page 18, point 8), the lowpass lter creates
a bandpass in any case. By adjusting the
subsonic and lowpass lter any bandpass be-
tween 10 Hz and 250 Hz can be realized.
Caution: To avoid a loss of gain make sure
that the crossover frequencies of the subsonic
and lowpass lters do have an interval of at
least two octaves when generating a band-
pass. That means if the lowpass is adjusted
to 100 Hz the subsonic should be adjusted to
25 Hz or less (one octave = doubled frequen-
cy or halved frequency).
8. Adjusting the subsonic
The subsonic lter cuts o very low frequen-
cies which aren’t audible and therefore re-
lieves the amplier and also the subwoofer.
Additionally the amplier will have more power
available for the audible frequencies.
The crossover frequency of the subsonic lter
can be adjusted from 10 Hz to 50 Hz using the
subsonic control (page 14, point 6).
This control is always activated and its adjust-
ment is mandatory.
9. Adjusting the phase
The phase adjustment allows to match the
subwoofer with the low frequency reproduc-
tion of the other speakers thus avoiding any
cancellations in the frequency response due
to phase shifts.
Using the phase control (page 14, point 7),
the phase can be adjust from 0° to 180°.
10. Connecting the loudspeaker output
The loudspeaker output can be connect-
ed directly to the wires of the loudspeakers.
Never connect any of the loudspeaker cables
with the chassis ground as this will damage
your amplier and your speakers. Ensure that
the loudspeakers are correctly connected (in
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 in-
dicated on most speakers.
The impedance must not be less than 1 Ohm,
otherwise the amplier protection will be ac-
tivated. Examples for speaker congurations
can be found on page 20 f.
11. Optional: Connecting the remote control
Connect the cable remote control that is in-
cluded in the scope of delivery to the remote
control input (page 14, point 9) The remote
control can be used to adjust the volume of
the subwoofer.
12. Optional: Conguration of the input refer-
ence
In some cases, it may be necessary to adjust
the signal ground of the signal inputs.
This can be done using the input reference
pushbutton (page 14, point 1).
Float: In this switch position, the signal ground
is separated from the vehicle’s ground by a
dierential amplier. This is usually the best
setting in most vehicles to prevent interfer-
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Productinformatie
| Merk | Helix |
| Model | AMPLIFY 201 X-OVER |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 3093 MB |
