Thermionic Culture THE FAT BUSTARD II 12 Channel Summing mixer - Manual (Page 8)

© Thermionic Culture Ltd, May 2011 7
3 Installation Hints
3.1 Installation
The Fat Bustard is designed for 19" rack mounting and, to
repeat the warning on page 1, must have adequate
ventilation.
3.2 Power
The unit can operate from mains supplies of 220-240V AC
or 110-120V AC, 50/60Hz. Check that the voltage selector
at the back near the power inlet is set to the correct voltage
setting.
3.3 Inputs
All inputs are unbalanced but 'floating' slightly above
ground due to a small resistor. This is connected between
pins 3 & 1 of XLR sockets and between ring and sleeve of
the EXT input jacks. This is to prevent the shorting to
ground of one side of a low impedance electronically
balanced source with consequent loss of quality.
3.4 Outputs
Outputs are unbalanced with XLR main outputs having pins
1&3 shorted. The ring and sleeve on the monitor out jacks
are also shorted.
3.5 Audio Connections
Use standard balanced cables to connect to all audio
equipment, whether balanced or unbalanced. For XLRs
pins 2 & 3 are signal with pin 2 'hot'. Pin 3 is ground. On
jacks, these are standard 0.25” stereo types with the tip
'hot'. Unbalanced jacks can also be used.