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Fathom SA
-600W
Page 20
ELF
The “ELF” (Extreme Low Frequency) function allows the user to apply signal
equalization at 25 Hertz. You can cut the signal at 25 Hz by 12 dB or boost the
signal at 25 Hz by 3 dB (0.5 dB increments). At 0 dB the equalizer is set flat for zero
contribution to the signal. At maximum boost, the signal at 25 Hz is increased by 3
dB.
The ELF Trim feature is useful for tailoring a subwoofer system’s low frequency
output for your particular room. Adding some boost can make certain material
more exciting. Using the cut function can help to compensate for room or boundary
gain in the low frequencies. Room boundaries and the room’s finite (limited) size
naturally cause very low frequencies to be boosted relative to other parts of the
signal. As such, using the ELF Trim feature to cut the lowest frequencies can help to
tame “bloat” or unnatural sounding low bass in small to medium sized rooms (and
can also reduce unwanted vibrations in the room or throughout the house).
The “ELF” function affects frequencies 2 to 3 times higher than the 25 Hz
specification. This frequency tapering effect may reduce the overall output of the
subwoofer and require the user to increase the “GAIN” control after adjusting the
ELF Trim.
D.A.R.O.
A powerful feature of the SA-600W is the innovative Digital Automatic Room
Optimization (D.A.R.O.) technology. This one-touch system serves to eliminate
the largest acoustic response peaks in your home theater at the main listening seat,
greatly improving the in-room low-frequency response. Calibration of the D.A.R.O.
system is fully automated. Please consult the SETUP PROCEDURES section of this
manual on pages 28-35 for details on how to use the D.A.R.O. system.
The D.A.R.O. feature can be turned ON and OFF (default) from this screen. You
may also turn the D.A.R.O. feature ON and OFF even when Calibration data is not
present (no room EQ exists).
To perform a room Calibration, plug the JL Audio calibration microphone into
the front-panel “MIC” jack, select the “Calibrate” option and press Enter.
If the D.A.R.O. calibration has not yet been performed, the bottom-most text on
the D.A.R.O. screen will display “Uncalibrated”.
Once you perform an D.A.R.O. Calibration, this text will display “Calibrated”.
Then at the bottom of the screen, you will have the option to “Clear DARO”. Once
selected, this text will change to “CONFIRM CLEAR” in RED. Once selected, the
D.A.R.O. calibration data is erased and the text indicators return to their default
state.
You can also elect to run a new calibration sequence without clearing the existing
data. The new EQ curve is saved in place of the old one. For detailed instructions on
the D.A.R.O., refer to Setup Procedures on pages 28-35.
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
12V ON
System Settings
12V OFF
Box EQ
V5.15 X144
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
180 deg
Sub Polarity
0 deg
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ON
Delay
OFF
ON
DARO
OFF
Uncalibrated
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ON
DARO
OFF
Uncalibrated
Calibrate
Clear DARO
VAR
Gain
REF
0.0
dB
0.0
dB
ON
ELF Trim
OFF
0.0 dB
ON
Equalizer
OFF
SAVE CHANGES
CANCEL CHANGES
EQ 3
EQ 2
EQ 1
EQ Band 1
50.0 Hz
0.0 dB
0.7 Q
EQ Band 2
50.0 Hz
0.0 dB
0.7 Q
EQ Band 3
50.0 Hz
0.0 dB
0.7 Q
24dB
12dB
Crossover
OFF
79.9 Hz
ON
Delay
OFF
HP Out
ms
Sub Out
ms
0.0
0.0
System Reset
No EQ
IWS 8
12V ON
System Settings
12V OFF
Box EQ
V5.15 X144
CONFIRM RESET
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
12V ON
System Settings
12V OFF
Box EQ
V5.15 X144
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
180 deg
Sub Polarity
0 deg
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ON
Delay
OFF
ON
DARO
OFF
Uncalibrated
ELF
HOME
SYSTEM
GAIN
POLAR
DELAY
DARO
XO
EQ
ON
DARO
OFF
Uncalibrated
Calibrate
Clear DARO
VAR
Gain
REF
0.0
dB
0.0
dB
ON
ELF Trim
OFF
0.0 dB
ON
Equalizer
OFF
SAVE CHANGES
CANCEL CHANGES
EQ 3
EQ 2
EQ 1
EQ Band 1
50.0 Hz
0.0 dB
0.7 Q
EQ Band 2
50.0 Hz
0.0 dB
0.7 Q
EQ Band 3
50.0 Hz
0.0 dB
0.7 Q
24dB
12dB
Crossover
OFF
79.9 Hz
ON
Delay
OFF
HP Out
ms
Sub Out
ms
0.0
0.0
System Reset
No EQ
IWS 8
12V ON
System Settings
12V OFF
Box EQ
V5.15 X144
CONFIRM RESET
