Nexo PS Series, User Manual

Page: 51 / 82

NEXO A
NALOGUE
PSTD C
ONTROLLERS
Page 51/82
Adjusting the Subbass level (Sub Level)
The potentiometer adjusts the level of the
Subbass channel, a range of 12 dB allows a
variety of configurations and application
conditions to be accommodated. Center
position of the knob is calibrated for 1
Subbass used with 2 distant PS.
Amplifier & Protection indicator
The bicolor green/red AMP LED indicates signal presence at
the sense input of the concerned channel, allowing visual
confirmation of the return connection of the Sense cables
from the amplifier output. The LED is flashing red, when the
Peak limiter is acting, reducing excessive peak voltage or
levels capable of overloading the channel amplifier.

The yellow VLF LED indicates that displacement protection for the Subbass are engaged on the
SubBass channel. The temperature protection is not monitored.

On each side of the PS main system window, yellow TEMP and DISP LEDs indicate when
protection has been activated (temperature or displacement control) for the LF (the HF drivers
temperature protection is not monitored).
Peak Limiter adjustments
The Analogue TDcontroller features two independent peak limiter trims (one for the SubBass amplifier
section, one for the PS amplifier section), which allows the peak limiter to be set to limit the maximum
power of the amp (without affecting the protections threshold). The peak limiter has no real cabinet
protection functions; it must be tuned to avoid overdriving the amp that in turn can generate obvious
clipping noise.
To set the peak limiter to the correct value, either turn the trimmer clockwise until the red LED lights at
the same time as the amp’s clipping LED, or use the graduation (power value given for 8

load).
8.4.3 Rear Panel
Audio Inputs
The audio inputs are two 3-pin female XLR connectors located in the area labeled BALANCED
INPUTS. Signal is applied between pins 2 and 3, pin 1 is connected to ground. When the Controller is
linked to a signal source with balanced outputs, the XLR connections are simply wired pin to pin (1 to 1,
etc.). As a result of the balanced nature of the outputs (and providing that balancing is respected by way
of the connection to the amplifier), there is no hot or cold pin - the Analogue TDcontroller being neutral
regarding the polarity of the signal.