NEXO NXAMP 4X1 Owner's Manual - Yamaha Commercial Audio

GENERAL DESCRIPTIONthe two converters work in opposite phase, some noise is cancelled; this is preferable forboth sound quality and EMC (Electro magnetic compatibility).Analog Input blockAfter linking the two XLRs for each channel, the analog input block has an EMC filter and aprecision input buffer that will remove the common noise on the input signal. Themaximum level allowed for the input signal is + 28 dBU (55 Volts peak to peak). The pinout of the input XLR is given bellow.Control blockThe control block contains several sub-block that are detailed bellow.The plain lines show the audio or sense signal (sense are voltage or current signalmeasured at the output of each amplifier). The dashed lines show the digitalcommunication signal among several block.You can see the audio input on the left; there are four analog inputs (from input XLR)named Analog A, Analog B and so on… and four digital inputs (Digital A, Digital B and soon…) from the expansion slot. These eight signals can be patched inside the DSP to anychannel of processing/amplifying (see further for a block diagram of what is inside thePAGE 25 OF 80