PRESONUS AIR SERIES, Руководство пользователя

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3 Hookup
3.2 Power
AIR-Series Loudspeakers
Owner’s Manual
6
3.1.2 Subwoofers: AIR15s and AIR18s
Line inputs. The AIR-series subwoofers feature two line-level inputs. These
balanced XLR / ¼” TRS combo connections are provided to connect your
subwoofer to a StudioLive-series 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 lowpass filter. However, either input may be used 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.
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.
Master Vol. This knob determines the master output level (volume) of the
subwoofer power amplifier. It has no effect on the signal level from Outputs 1
and 2. Push this control to access all the DSP functions in your AIR-series
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.
3.2 Power
AC line connection. AIR-series loudspeakers have a universal power supply
that accepts AC power input between 100 and 250 VAC at 50/60 Hz. Each
loudspeaker is supplied with an IEC cord appropriate for the country of sale.
WARNING: Do not remove the center grounding prong or use a
ground-lift adapter, as this could result in electric shock.
Power Switch. This is the On/Off switch.
Power User Tip:
If connecting multiple loudspeakers to the same electrical
circuit, make sure that adequate line current is available. The maximum current
draw for each AIR-series loudspeaker is listed in the Specifications in
Section 4.1 .
Voltage Selection. AIR-series loudspeakers are configured for the country of
sale. Only use this switch if you are using your loudspeaker in a country with a
different standard voltage than the country where you purchased your
loudspeaker.
Fuse. This is the fuse housing for your AIR-series loudspeaker. The fuse type
for your loudspeaker is listed on the rear-panel.