8
Rialto
400
‐
Bottom
Ground
Lift
Switch
Switches
the
level
of
isolation
between
the
audio
signal
ground
and
your
AC
earth
ground.
Mono
Bridging
Switch
Used
to
bridge
the
Rialto
400
into
Mono
mode.
AudioControl
User
Manual
‐
Rialto
400
Flexibility
and
Versatility
at
its
Best
The
bottom
of
the
Rialto
400
contains
important
safety
and
compliance
information.
It
also
contains
two
adjustment
settings
that
can
be
altered
to
improve
performance
under
certain
conditions.
•
Stereo/Mono
Mode
Switch
–
Under
normal
use
conditions,
this
switch
will
be
set
to
‘Stereo’.
When
the
Rialto
400
is
used
in
Mono
mode
(i.e.
using
the
Rialto
to
amplify
a
powered
subwoofer),
the
output
of
the
Rialto
400
is
increased
to
as
high
as
400
watts.
If
the
Rialto
400
is
used
in
Mono
mode,
the
Stereo/Mono
switch
should
be
switched
to
‘Mono’.
When
in
Mono
mode,
the
red
‘Mono’
LED
will
light
on
the
back
of
the
Rialto
400.
•
Ground
Lift
Switch
–
This
switch
selects
the
level
of
isolation
between
the
audio
signal
ground
and
your
AC
earth
ground.
Under
normal
operating
conditions
this
switch
should
be
switched
to
the
‘ground’
position,
but
if
you
run
into
trouble
with
an
AC
ground
hum,
try
the
other
two
settings
for
the
best
operation.
For
your
safety.
The
chassis
is
always
connected
to
the
earth
ground
regardless
of
the
switch
setting.
Ventilation
Grills
Keeps
the
Rialto
400
nicely
ventilated!
Guided
Tour
