Krix Seismix 3 Manual Do Utilizador

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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 amplifier of the highest electronic standards. Krix have introduced 
In Circuit Serial Programming (ICSP), meaning the microcontroller within the amplifier can be 
upgraded via the serial interface located internally on the amplifier module. This means as 
future features are developed your subwoofer can be upgraded. You would simply need  
to return the amplifier 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 amplifier / 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 figure 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 figure 2 for connection 
using 
Line Level signal.
 
Method 2: Speaker Level Connections
 
For stereo applications connect the 
Speaker
Level outputs on your main amplifier to the 
Speaker Level inputs on the rear panel of  
the Seismix (see figure 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 figure 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 figure 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 Amplifier
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
+ - - +
+ - - +