Yamaha EMX68S Owner's Manual - Page 16

14 Front and rear panel Input/output panel 2 4 1 3 5 6 7 1 Channel input jacks (Hi-Z, Low-Z) 1-6 (EMX88S), 1-4 (EMX68S) These are the input jacks for channels 1-6 (EMX88S), 1-4 (EMX68S). By using the PAD switches (control panel 6) you can connect any of the jacks to a wide range of sources from mics to line level devices (synthesizers or rhythm boxes etc.). The Low-Z jacks can provide +15 V phantom power, allowing you to use condenser microphones. Both Hi-Z and Low-Z are balanced, and are compatible with microphones of output impedance 50-600Ω or line level devices of 600Ω. The nominal input level is from -40 dB to -10 dB for the Hi-Z jacks, and from -50 dB to -20 dB for the Low-Z jacks. Pin connections for the Hi-Z and Low-Z jacks are as follows. Low-Z jacks (XLR type) Pin 1: ground Pin 2: hot (+) Pin 3: cold (-) Hi-Z jacks (TRS phone jacks) Sleeve: ground Tip: hot (+) Ring: cold (-) S RT + - GND GND - + Note: It is not possible to simultaneously use both the Hi-Z and Low-Z inputs of a given channel. For each channel, use only one of the inputs as appropriate for the input source. Phantom power is switched on/off in simultaneously for channels 1-8 (EMX88S), 1-6 (EMX68S). For this reason, devices which do not require phantom power must be connected to the Hi-Z or LINE jacks if the PHANTOM switch (control panel L) is on. 2 Super Hi-Z jacks These two phone jacks are the input connectors for input channel 5-6 (EMX88S), 3-4 (EMX68S). They are unbalanced, can be used simultaneously, and their high input impedance makes them ideal for use with instruments such as electric-acoustic guitar and electric bass. They can also be used with line-level sources, such as synthesizers and drum machines. 3 Channel input jacks (MIC/LINE) 7-8 (EMX88S), 5-5 (EMX68S) These are the input jacks for channels 7-8 (EMX88S), 5-6 (EMX68S). Connect microphones to the MIC jacks. Connect line-level devices, such as synthesizers to LINE L (MONO)/R jacks if the devices are stereo sound sources. Use the LINE L (MONO) jack if the devices are monaural sound sources. The MIC jacks can provide +15 V phantom power, allowing you to use condenser microphones. The MIC jacks are balanced, and are compatible with microphones of output impedance 50- 600Ω. The LINE jacks are unbalanced, and are compatible with line level devices of 600Ω output impedance. Nominal input level is -50 dB for the MIC jacks and -10 dB for the LINE jacks. Note: The MIC and LINE inputs for channel 7 (EMX88S), 5 (EMX68S) can be used simultaneously but their levels cannot be adjusted separately (Same for channel 8 (EMX88S), 6 (EMX68S).) EMX88S/EMX68S-Owner's Manual