If unbalanced signals are used, the sleeve and ring should both be connected to ground.
The right input of the return is norrnalled to the left input, allowing the left input to be
used a mono return.
Headphone Outputs.
The front panel jack socket is suitable for driving headphones of 32 ohms or higher
impedance. A standard 0.25" jack plug should be used.
Meter Calibration.
The meter "ovu" trims may be used to re-adjust the calibration of the VU meters if a
setting other than OVU = +4dBu is required. A steady signal of the desired line up
level should be applied, and a small screwdriver inserted through the front panel to
adjust the meter to the line up point on the scale.
Digital Modules.
Optional DO-8 digital modules are available for the MI. An 8 channel input/output
module may be fitted, providing a digital input which is normalled to the channel line
inputs (i.e. inserting an analogue input cable into the line socket will override the
digital input), plus digital outputs that follow the channel Direct outputs. When fitted
to the 12 channel version of the Ml, the digital input and output connections are to
channels 1 to 8 only. There is a separate DO-2 module available for the master section,
which provides the stereo output in digital format.
The specifications and user instructions for the digital modules are supplied separately.
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