User`s manual
R1250MC
AMPLIFIER
N~rmrk.ct
NH
USA
l'owerAmplifierRllSOMC
OesI.,-inUU
Uneln
L @ II
~~
Uneln
L @ R
II@)~
..w+--II
4
a
Bus
Input/Output:
The
bus
line
input
is
an
optional
II
Fuse
Receptacle:
Holds
a
replaceable
fuse
for
AC
input
that
can
be
used
to
connect
a
single
source
power
input
connection.
Fuse
rating
for
North
to
multiple
zones.
The
bus
line
output
is
a
passive
America
and
Europe
is
T1
OAL
250V.
passthrough
of
the
bus
input
and
can
be
used
to
AC
Input:
The
AC
voltage
input
for
the
North
daisy
chain
the
source
to
other
amplifiers
in
the
system.
II
American
model
is
120VAC
at
60Hz
(for
the
European
model,
230VAC
at
50Hz).
This
receptacle
II
Line Input:
The
line
audio
input
for
each
zone
is
a
accepts
a
3-prong
IEC
320
type
connector.
A
dedicated
sensing
input
that
will
activate
the
zone
detachable
3-terminal
power
cord
is
included.
when
an
audio
signal
from
a
source
is
present.
12VDC Trigger In/Out:
The
12V
Trigger
In
is
II
Line/Bus Switch:
Sets
the
zone
input
to
the
Line
II
used
to
activate
the
zone.
The
Trigger
Out
provides
audio
input
or
the
Bus
input.
100mA
12V
max.
This
can
be
used
to
drive
other
II
Speaker Outputs:
The
A
and
B
speaker
outputs
12V
triggered
devices.
The
delay
and
audio
sensing
are
bypassed
when
the
12V
trigger
input
is
used.
are
in
parallel
to
the
amplifier
output.
The
minimum
speaker
impedance
for
stereo
mode
operation
is
4
Delay Time:
Muting
delay
can
be
adjusted
from
ohms
for
one
pair
and
8
ohms
for
two
pairs
of
Em
about
0.5
minute
to
4.5
minutes.
When
an
audio
speakers.
The
minimum
impedance
for
bridged
signal
is
not
present,
the
amplifier
will
automatically
mode
operation
is
8
ohms
for
Speaker
B
only.
go
into
standby
mode
after
the
preset
period
of
III
Gain
Controls:
Left
and
Right
gain
controls
inde-
time.
When
set
to
maximum,
the
amplifier
will
stay
active
and
not
go
into
standby.
pendently
adjust
the
sound
level
for
each
channel.
When
used
in
the
bridged
mode
only
the
Left
con-
Stereo/Bridge Mono Switch:
Sets
each
zone
trol
is
used.
OJ
amplifier
for
stereo
or
bridged
mono
operation.
II
Power Switch:
Turns
the
amplifier
on/off.
This
switch
does
not
disconnect
the
main
power
feed
from
the
amplifier;
this
requires
that
the
power
cord
be
unplugged
from
the
outlet.