PRESONUS ULT-series Owner's Manual page 16

3 Hookup
3.1.2 ULT18 Subwoofer
DJ MON FOH
3.1.2 ULT18 Subwoofer
INPUT 1
60 Hz
LOW PASS FILTER
INPUT 2 MIC/LINE
OUTPUT LEVEL
OUTPUT 1
100 Hz
OUTPUT 2
OUTPUT LEVEL
INPUT 1
60 Hz 80 Hz
100 Hz
LOW PASS FILTER
LED o
12
Preset Controls. Your ULT full-range speaker is equipped with three presets:
• FOH. This preset is optimized for live music performance.
This mode is suitable for use with PreSonus StudioLive
consoles and most other mixing consoles.
• Mon. Floor monitor mode sets dynamics and equalization for
optimum results when the loudspeaker is used as a floor monitor.
• DJ. This preset is optimized for use with pre-recorded music, enhancing
the highest and lowest frequencies for more high-fidelity performance.
Line Inputs. The ULT18 features two line-level inputs. These balanced
XLR / ¼" TRS combo connections are provided to connect your
subwoofer to a StudioLive digital mixer or other mixing console.
Power User Tip: Two inputs are provided in order to accept a stereo signal from
the output of the mixing console. Both channels should be connected, as the low-
frequency content from both channels of a stereo signal is summed before the
low-pass filter. However, if the mixing console output signal is mono only, or if you
are sending low-frequency channels (bass, kick, keyboards, etc.) to a separate aux
or subgroup output for the subwoofer only, either input may be used. If you are
using two ULT18 subwoofers and running your system in stereo, connect the Left
side to Input 1 of the left ULT18 and the Right side to Input 1 of the right ULT18.
Outputs. Two line-level outputs (1 and 2) are provided to pass the stereo
signal from the subwoofer to full-range loudspeakers. The outputs are
parallel to Inputs 1 and 2, respectively. The line-level outputs will drive
at least 100 feet of balanced cable with no signal degradation.
For more information on connecting multiple loudspeaker
systems, see the hookup diagrams in Section 3.4.
Output Level. The Output level knob determines the output
level (volume) of the subwoofer power amplifier. It has no
effect on the signal level from Outputs 1 and 2.
Power User Tip: A subwoofer can significantly change the frequency
response of a full-range system. A 4-way system with a subwoofer
will be 6 to 18 dB hotter below 80 to 100 Hz. Set the appropriate
level for your subwoofer before adjusting your system EQ.
Low Pass Filter. This control determines the upper end of the frequency
range reproduced by the ULT18. If you have enabled the highpass
filter on your full-range loudspeaker, set the Low Pass Filter control to
the same value. Otherwise set the Low Pass Filter control to the lowest
frequency that your full-range loudspeakers can reliably reproduce.
LED Off. This button turns the front panel LED off. When the front LED is off,
the rear panel LED will illuminate and serve as your power indication.
ULT-series
Owner's Manual