Level Control - YORKVILLE NX55P Manuel De L'utilisateur

Features
• Ultra-clear reproduction throughout
the whole bandwidth
• High efficiency, high tech, 1000 watt
Bi-amped power module
• Superior TX-style processing and
component protection
• True 1 inch diaphragm horn driver
• Low distortion/high power-handling
12-inch woofer
• – ∞ dB / + 6 dB Level control (for individual
cabinet level adjustment)
• XLR and TRS inputs / outputs for easy
connection and looping
• Multi-input source mixer for direct inputs
• Direct microphone input with level control
• Two way overall EQ controls
• Integrated flying hardware (3/8 inch
threaded holes)
• Tough, full-length metal grille
• Recessed Mixer panel
1. Operation
The NX55P Series Two is a bi-amped powered
full-range loudspeaker with a built-in two chan-
nel mixer. Multiple NX55P Series Two cabinets
may be connected through the Link option. If
you're using the NX55P Series Two with an ex-
ternal mixer, the internal mixer can be disabled.
The built-in mixer has a microphone input and
two (combined) ¼ inch inputs for line sources
such as CD players. Advanced signal process-
ing is used to give maximum performance at
all levels. There's a switch to provide a low fre-
quency rolloff if you're going to use the NX55P
Series Two with a subwoofer.
2. Mic Input
Any regular microphone can be inserted into
the Mic input. Phantom power is built–in for
condenser microphones.
3. Line/CD inputs
The Line/CD inputs allow line-level sources such
as CD players, cassette decks or any other
sources such as mixers to be connected. If
more than one input is used these inputs blend
the signals (e.g. stereo sources) into mono. The
inputs are balanced to help reject hum (when
used with balanced cables) Unbalanced
1/4-inch plugs can be used. When connecting
to unbalanced sources using balanced T.R.S.
cables does help reduce unwanted noise and/
or hum. These inputs can be used for lower-lev-
el Line inputs, which need a bit more gain (as
opposed to using the Link jacks, which have
no control). These inputs allow you to have a
greater range of level adjustment than using
just the NX55P Series Two Level control (e.g. if
an individual cabinet, in the chain needs to
operate at lower level than the rest).
2
4. Link
These parallel jacks allow multiple NX55P Series
Two cabinets to be connected together. The
Link Jacks are the correct input to use when
driving the NX55P Series Two from an external
mixer. The Link Jacks operate at line level (+4
dBv) to achieve full power. The NX55P Series Two
Level control allows operation at levels from –2
dBv to +10 dBv for full power. When operating
from signals that are not as strong, use the Line
inputs of the first cabinet in the chain. The Link
jacks are high quality balanced inputs with very
good common mode (hum) rejection. To ensure
maximum hum rejection, the proper balanced
cables must be used. When connecting to un-
balanced sources using balanced T.R.S. cables
does help reduce unwanted noise and/or hum.
Jacks marked LINK OUTPUT are connected in
parallel with the LINK INPUTS and are provided for
convenience to connect downstream cabinets.
Link inputs may also be used as outputs and link
outputs may be used as inputs.

5. Level Control

This control allows the audio level of the
cabinets, linked in a chain, to be individually
adjusted. This control does not adjust the level
of the Link jacks. The Level control should be
set at '0' (center) for most applications.
6. LF Rolloff
For operation with a subwoofer, the LF Rolloff
switch shuts off the low frequency boost and
filters out signals below 100 Hz. It's not neces-
sary to use this switch for speech applications
because the Mic input already has a high pass
filter. This switch only affects the signals to the
internal amplifier and does not affect signals
going out from the internal mixer, or to signals
passing through the Link connections.
7. Mixer On/Off
The Mixer On/Off switch turns the NX55P Series
Two's internal mixer on the rear panel on and
off. The NX55P Series Two's mixer should be used
when a microphone or CD player is directly
connected to one of the NX55P Series Twos
Line/CD or Mic inputs. It should be switched off*
if the NX55P Series Two's Link Input is connected
to a separate mixer's output.
*Note: the NX55P Series Two has been designed to
enable the user to interconnect multiple NX55P Series
Twos (up to 12 or even more) via the Link Inputs and
Outputs. When linking NX55P Series Two's, a maximum
of 3 of the NX55P Series Two's internal mixers can
be used (activated) allowing up to 3 microphones
and 3 line sources to be mixed without an external
mixer. This is useful for smaller music engagements,
meetings, seminars, etc.