Krix Seismix 3 Stereo System User Manual


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The Seismix 3 and Seismix 5 active subwoofers will complement existing Stereo or Home
Theatre systems producing an increase in low frequency performance for a deep experience.
The Seismix 3 and Seismix 5 are compatible with a variety of small to large sized, sealed
or vented, main/satellite speakers.
Your subwoofer contains an amplier of the highest electronic standards. Krix have introduced
In Circuit Serial Programming (ICSP), meaning the microcontroller within the amplier can be
upgraded via the serial interface located internally on the amplier module. This means as
future features are developed your subwoofer can be upgraded. You would simply need
to return the amplier module to Krix, where the upgrade would take place.
Congratulations on choosing Krix
connection
1. Ensure the main power switch is off
and connect the mains power cord.
2. There are two methods which you can use
to connect the Seismix subwoofer, either
via the line level inputs which will require
your stereo amplier / AV receiver to have
a subwoofer output facility (mono or stereo
outputs) or via the speaker level inputs.
 Method 1: Line Level Connections
It is recommended that you use LineLevel
connections for home theatre applications.
Connect the SUB OUT socket(s) on your
AV receiver to the LineLevel input(s)
which are a pair of RCA sockets located
in the middle of the rear subwoofer panel
(see gure 1). The SUB OUT socket on your
AV receiver is usually mono which can be
connected to the Seismix with one lead
to the ‘Left (mono)’ input. If your AV receiver
has stereo SUB OUT sockets then use dual
leads, connecting these to the ‘Left and
Right’ inputs. Refer to gure 2 for connection
using LineLevel signal.
 Method 2: Speaker Level Connections
For stereo applications connect the Speaker
Level outputs on your main amplier to the
SpeakerLevel inputs on the rear panel of
the Seismix (see gure 1). Then connect
the SpeakerLevel outputs on the rear panel
of the Seismix to each of your left and right
speakers. Be sure to maintain correct phasing
for each set of speaker leads, red (positive +)
to (+) and black (negative -) to (-). Refer
to gure 3 for connection using Speaker
Level signal.
3. Before turning the Seismix on, ensure the
volume control is turned down and set the
LowPass(Hz) control to the middle position
(see gure 1). Turn on the unit with the
power switch located at the bottom of the
rear panel, the subwoofer will activate and
the blue Power/Standby LED will light up.
Begin by playing music with bass content
and slowly increase the volume dial on the
subwoofer to a moderate level.
Figure 1 Back panel of subwoofer
Volume Control
Low Pass Control
Speaker Level
Input/Outputs
Line Level Inputs
Mains Power Switch
Main Stereo Amplier
To main stereo speakers
Figure 3 Connection using SpeakerLevel signal
To main
stereo speakers
Main AV Receiver
Figure 2 Connection using LineLevel signal
If only a single or mono sub-out
exists, then plug that into the left
Line Level input labelled mono
From pre-out
or sub-out
+ - - +
+ - - +
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