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Volume
The volume control will adjust the volume
of the subwoofer only. The control can be
set for the subtleties of the lower octaves
in musical performances or increased for
the earth shattering explosions and effects
on movie sound tracks. The volume control
on your main amplier / AV receiver controls
volume for your overall system (see gure 1).
positioning
The procedure for setting up any subwoofer
can be time consuming, requiring numerous
minor adjustments to get the desired result.
There is no denitive 'correct' way to set up a
subwoofer. Given different listening environments
different people’s tastes and different speakers,
there are a number of variables that have to be
taken into consideration.
It is up to the individual listener to adjust
the Seismix for the character and strength
of bass that is preferred for whatever type
of source material is being reproduced.
It is benecial to select music that is familiar
to you when carrying out listening tests and
setting up procedures and as a suggestion
play recordings that use wooden instruments
such as acoustic guitars, oboes, cello etc.
These instruments exhibit a strong resonant
characteristic in the low to mid bass region
and will highlight unpleasant ‘woody’ or ‘chesty’
sound qualities suggesting there is too much
overlap in the bass information between the
subwoofer and main speakers.
To ne tune the integration of the Seismix into
your Hi- system, start with both the LowPass
(Hz) and Volume at the middle setting. Gradually
adjust the setting of the LowPass(Hz) either
up or down (see gure 1). This will vary the
amount of overlap from the sub to the main
speakers and increase or decrease the level at
those frequencies. The effect is a strengthening
or weakening of the upper bass region. You might
reach a point where the sound develops a 'boxy'
or 'chesty' quality which is not desirable. This
could indicate there is too much overlap from
the sub to the main speakers and is remedied
by turning the LowPass(Hz) back. Adjust the
Volume level to suit your personal taste.
If you have any queries regarding the Seismix, the set up procedure or any other KRIX
product, please contact your nearest Krix retailer or Krix direct. Contact details are on
the back cover of this booklet.
warranty
5 years warranty applies to the cabinet and speaker
1 year warranty applies to the amplier and related internal electronics
(Refer to the details on the warranty card supplied)
trouble shooting
Symptom Probable Cause Treatment
No noise from the
subwoofer when
main power is on
Auto switch circuit has not
operated due to no signal
Volume turned down
Signal has no bass content
Play source material and
gradually increase the volume
from the main Hi- amplier
Increase Volume on the sub
Play source material with
sufcient bass content
Very little bass coming
from the subwoofer
Apart from the source
material having little bass
content, the settings on the
sub may need adjustment
Increase setting of the
LowPass(Hz) control
Try changing position of
the Phase button
Increase Volume on the sub
Change gain button from
‘Lo’ to ‘Hi’
Bass content is
too strong and
uncomfortable
to listen to
Settings on the subwoofer
may need adjustment
Decrease the setting of
the LowPass(Hz) control
Decrease the Volume on
the subwoofer
Subwoofer emits
a humming sound
Current may be circulating
from the subwoofer’s signal
ground through the mains
earth wiring.
Activate the EarthLift by
pushing the button which
will break the current loop