JL Audio Fathom SA-600W Owner's Manual page 19

Clear DARO
DARO Gain
REF OFF VAR ON
0.0 0.0
Uncalibrated
dB dB
Sub Polarity DARO
0 deg OFF 180 deg ON
Uncalibrated
Sub Polarity
Crossover
Delay
OFF 0 deg 12dB 180 deg 24dB
OFF ON
HP Out 79.9 Hz Sub Out
0.0 0.0
ms ms
Crossover
Delay
OFF OFF 12dB ON 24dB
79.9 Hz
EQ Band 2
| Fathom SA-600W
Equalizer Delay
50.0 Hz
GAIN
DARO
"GAIN" allows you to configure the subwoofer output level, with two options.
OFF ON
REF: (default) The subwoofer level is fixed at 0 dB (reference level).
This setting is useful if you are controlling the subwoofer level using a receiver
Uncalibrated
or preamp/processor.
Calibrate
VAR: The subwoofer level is variable and may be increased (+15 dB) or decreased
(-50 dB) in 0.50 dB steps, using the UP and DOWN arrow keys.
Clear DARO
POLAR
"POLAR" allows you to select between normal (0 deg) and reversed (180 deg)
signal polarity and primarily affects the small frequency range around the crossover
DARO
point between your subwoofer and satellite speakers. This feature produces an
instantaneous reversal of the signal's amplitude peaks.
OFF ON
When placing your subwoofer(s) in the room, either setting may provide a
smoother transition between your subwoofer(s) and satellite speakers. Use source
Uncalibrated
material with good mid and upper bass content for evaluation.
Calibrate
0 deg: (default) Normal polarity (0 deg)
Clear DARO
180 deg: Polarity reversed 180 degrees
DELAY
"DELAY" allows you to add time delay to either the "SUBWOOFER OUTPUTS"
or to the "HIGH PASS OUTPUTS" of the SA-600W. The maximum delay available
is 25 milliseconds (in 0.1 ms increments). "DELAY" mode options include:
HP Out: This control adds delay to the filtered satellite signal coming from
the SA-600W's "HIGH PASS OUTPUTS" and can be very useful for helping
the subwoofer-to-satellite transition through the crossover region. Note: The
delay feature of the "HIGH PASS OUTPUTS" is available even if the onboard
crossover (XO) is not used (OFF).
Sub Out: This delay functions similar to a Phase control, adding delay to the
"SUBWOOFER OUTPUTS".
Due to the built-in system equalization used to make the small-box subwoofer's
acoustic response flat, the subwoofer output signal is naturally delayed - usually
Delay
on the order of 12 to 15 milliseconds. By delaying the satellite outputs by a similar
amount, you can achieve greater coherence, texture and punch through the crossover
OFF ON
region.
Optimum DELAY results can be achieved by first running the D.A.R.O. system
HP Out Sub Out
to flatten the subwoofer's acoustic response in your room. Satellite delay has little
0.0 0.0
audible effect if the frequency response through the crossover region is uneven.
ms ms
EQ Band 3
Delay
50.0 Hz
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