Audio Note M8 Line Signature - Manual (Page 14)

The pin configuration for all Audio Note (UK)
XLR / BALANCED connections is as follows: -
PIN 1 Ground / Shield
PIN 2 Positive / Send
PIN 3 Negative / Return
The balanced and single ended outputs cannot be used
simultaneously; select the appropriate output using the toggle switch.
When using an amplifier with a true balanced input, the
‘BALANCED / SINGLE ENDED’ switch may be set in either position.
When set to the ‘BALANCED’ position, the centre tap of the output
transformer secondary is connected to the preamplifier’s ground.
When set in the ‘SINGLE ENDED’ position, the secondary ‘floats’ in
relation to the preamplifier ground. This provides the option of either a
low or high common mode impedance to ground at the preamplifier
output. Experiment with both positions to achieve the lowest
background hum from the system.
Special Note – Make sure that all connections are tight and clean. For
best results use good quality audio interconnects. Although it is
perfectly acceptable to use cables manufactured by other companies,
for best results and performance, we recommend our own Audio Note
(UK) range of interconnects and loudspeaker cables. For further
information, please consult your nearest Audio Note (UK) dealer, or
alternatively please feel free to contact us directly.
The following page provides a description of the various cable and
connection options when connecting the XLR / Balanced outputs to
various power amplifier inputs.
CONNECTION OVERVIEW continued…