0 0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
[ms]
4.5
DELAY
POLARITY
180°
0°
READY
LIMITER
SIGNAL
MUTE/PROT
BALANCED
INPUTS
BALANCED
OUTPUTS
120Hz
90Hz
Link
Xover
SUBWOOFER
SETUP
SERVICE
DATA
XOVER
OUTPUTS
MODE
8
0dB
MONO
0dB
STEREO
OUT 2
OUT 1
INPUT 2
INPUT 1
SUBWOOFER
LEVEL
1
2
3
4
5
6
7
0 0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
[ms]
4.5
DELAY
POLARITY
180°
0°
READY
LIMITER
SIGNAL
MUTE/PROT
BALANCED
INPUTS
BALANCED
OUTPUTS
120Hz
90Hz
Link
Xover
SUBWOOFER
SETUP
SERVICE
DATA
XOVER
OUTPUTS
MODE
8
0dB
MONO
0dB
STEREO
OUT 2
OUT 1
INPUT 2
INPUT 1
SUBWOOFER
LEVEL
1
2
3
4
5
6
7
0 0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
[ms]
4.5
DELAY
POLARITY
180°
0°
READY
LIMITER
SIGNAL
MUTE/PROT
BALANCED
INPUTS
BALANCED
OUTPUTS
120Hz
90Hz
Link
Xover
SUBWOOFER
SETUP
SERVICE
DATA
XOVER
OUTPUTS
MODE
8
0dB
MONO
0dB
STEREO
OUT 2
OUT 1
INPUT 2
INPUT 1
SUBWOOFER
LEVEL
1
2
3
4
5
6
7
26
SIGMA S218
Cod. 420120258 REV. 1.0
The package of SIGMA S218 subwoofer contains:
• S218 subwoofer
• powerCON power cable
• fuses rated for operation in the 100-120V~ range
•
quick start user manual and warranty documents
2. FIRST POWER-UP
CONFIGURATION AND OPTIMISATION
SIGMA S218, used in a stand-alone configuration, is characterised by
omnidirectional sound emission. This feature is emphasised in case of
low frequencies, while it decreases as frequency increases.
For subwoofer use optimisation in given configurations, the control
panel displays the following:
•
“OUTPUTS” SECTION [4]
1.
Xover (the signal present at OUTPUTS may be filtered with a
crossover frequency for daisy chain to a speaker, at 120 Hz or
90 Hz)
2.
Outputs Mode (Link if the signal present at OUTPUTS is the one
applied to the subwoofer, Xover if the signal at OUTPUTS is
filtered according to the frequency selected by means of Xover
button)
•
“SUBWOOFER SETUP” [5]:
1.
Delay (applicable delay: 0 ÷ 4.5 ms, with 0.5 ms steps)
2.
Polarity (0°, or 180°, useful for wavefront optimisation through
acoustic wave phase reversal)
Before power-up, set Subwoofer Level selector [3] to 0 dB (Mono or
Stereo, depending on the selected configuration).