PRESONUS ULT-series, Owner'S Manual

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2 Getting Started
2.1 Level Setting Procedure (Full-Range)
ULT-series
Owner’s Manual
4
2 Getting Started
Before you begin, here are a few general rules of thumb:
• Always make sure your loudspeakers are powered off when making connections.
• Do not allow your inputs to clip. Watch the Clip LED on the back of your
loudspeaker. When this LED illuminates, it indicates that the analog-
to-digital converters are in danger of being overdriven. Overdriving
the converters will cause digital distortion, which sounds terrible.
• Your full-range loudspeaker provides attenuation control only for the speaker
and line levels. If you are not getting adequate volume with these controls
turned all the way up (0 dB), make sure that your mixer is properly gain-
staged and that you are using enough loudspeakers for your application.
Your PA and studio equipment should be powered on in the following order:
1. Sound sources (keyboards, direct boxes, microphones,
etc.) connected to your mixer
2. Mixer
3. ULT-series Loudspeakers
When it’s time to power down, your system should be turned off in the reverse order.
Now that you know what not to do, let’s get some audio going! The following
level-setting tutorials cover best practices that can be applied to nearly every
application. The first tutorial covers level setting for the full-range models
only; the second tutorial describes proper level setting for a system that
includes one ULT18 subwoofer and two full-range ULT-series loudspeakers.
2.1 Level Setting Procedure (Full-Range)
1. With the power switch in the Off position, connect the locking IEC plug to
the IEC socket connection on the back of the loudspeaker and plug it into
a grounded AC outlet or surge protector.
WARNING: While a locking IEC cable is ideal for permanent installation,
be careful that this cable cannot be tripped over in ground-stacked
applications, as this is a toppling risk.
2. Turn the level knobs fully counterclockwise, to the lowest position.
100-230V~, 50-60 Hz, 150W
DIRECT OUT
MIX OUT
LINE
HPF DJ FOH MON SIGNAL CLIP TEMP
MIC/LINE
LINE LEVEL
MIC / LINE
MIC/LINE
-15 +65
MIC
LINE
LINE LEVEL
MIC / LINE
-15 +65
MIC
LINE