Hookup; Rear Panel Connections And Controls; Onboard Performance Monitoring; Onboard Tuning Features - PRESONUS CDL Sub18 Owner's Manual

2

Hookup

2.1

Rear Panel Connections and Controls

2 Hookup
2.1 Rear Panel Connections and Controls
(push)
2.2

Onboard Performance Monitoring

Onboard Tuning Features

2.3
2
Line Input. Balanced XLR connection for line-level input. Use the Line input to
connect the subwoofer to a StudioLive digital mixer or another mixing console,
either directly or through the Line out connector on another CDL loudspeaker.
Direct Out. This is the Direct Out for the line input. Use this to connect to another
CDL loudspeaker. This output is a passive pass-through of the audio input. Any loss
of speaker power will still pass audio to subsequent loudspeakers.
Master Vol. This knob determines the master output level (volume) of the
subwoofer power amplifier. It has no effect on the signal level from the direct output.
Push this control to access all the DSP functions in the CDL Sub18 loudspeaker.
Power User Tip: A subwoofer can significantly change the frequency response of a
full-range system. A 3-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.
Master Performance Monitoring. These 4 LEDs display
the performance status of the internal amplifier:
CLIP. The clip LED illuminates when the input signal has clipping, or when
•
the amplifier exceeds the maximum upper limit (load dependent).
• LIMIT. The protection limiter has been engaged when this indicator illuminates.
-3dB. When this LED illuminates, the input signal has exceeded -3 dB.
•
• SIGNAL. This LED illuminates when the input signal exceeds -50 dB.
Power User Tip: Never run your input levels higher than the channel
inputs can handle. If you overdrive the A/D converters, it will cause
digital distortion (digital clipping), which sounds terrible.
The CDL Sub18 subwoofer has controls for customizing the loudspeaker's
performance. To access the controls, press the Master level encoder and
turn it to scroll through the menu options. Press the encoder again to
select a parameter and adjust it. Press again to continue scrolling.
Level shows the volume level as it's adjusted by the Master Volume encoder.
LPF. Variable LPF
Polarity sets whether the subwoofer's polarity is inverted or not.
Presets. Presets determine appropriate subwoofer settings for selected
configuration with CDL speakers. Adjusts the power output.
CDL Sub18
Owner's Manual