Nexo PS 8 User Manual

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Contents

Nexo PS 8 User Manual Manual pdf 51 page image

NEXO A NALOGUE PSTD C ONTROLLERS Page 51/82Adjusting the Subbass level (Sub Level)The potentiometer adjusts the level of theSubbass channel, a range of 12 dB allows avariety of configurations and applicationconditions to be accommodated. Centerposition of the knob is calibrated for 1Subbass used with 2 distant S12.Amplifier & Protection indicatorThe bicolor green/red AMP LED indicates signal presence atthe sense input of the concerned channel, allowing visualconfirmation of the return connection of the Sense cablesfrom the amplifier output. The LED is flashing red, when thePeak limiter is acting, reducing excessive peak voltage orlevels capable of overloading the channel amplifier.• The yellow VLF LED indicates that displacement protection for the Subbass are engaged on theSubBass channel. The temperature protection is not monitored.• On each side of the PS main system window, yellow TEMP and DISP LEDs indicate whenprotection has been activated (temperature or displacement control) for the LF (the HF driverstemperature protection is not monitored).Peak Limiter adjustmentsThe Analogue TDcontroller features two independent peak limiter trims (one for the SubBass amplifiersection, one for the PS amplifier section), which allows the peak limiter to be set to limit the maximumpower of the amp (without affecting the protections threshold). The peak limiter has no real cabinetprotection functions; it must be tuned to avoid overdriving the amp that in turn can generate obviousclipping noise.To set the peak limiter to the correct value, either turn the trimmer clockwise until the red LED lights atthe same time as the amp’s clipping LED, or use the graduation (power value given for 8Ωload).8.4.3 Rear PanelAudio InputsThe audio inputs are two 3-pin female XLR connectors located in the area labeled BALANCEDINPUTS. Signal is applied between pins 2 and 3, pin 1 is connected to ground. When the Controller islinked 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 wayof the connection to the amplifier), there is no hot or cold pin - the Analogue TDcontroller being neutralregarding the polarity of the signal.