Specifications

1.
Introduction
Congratulations
on
choosing
Australian
Monitor
for
your
professional
amplification
requirements.
The
design
of
your
P4-Series
Audio
powerAmptifi
ers
e.mbrgce
all
the
aspects
of
a
well
designed
unit.
The
visual
design,
mechanical,
electricalLnd
sonic pa_
rameters,
along
with
our
dedicated
manufacturing
process,
have
all
been
optimized
to
provide
a
profes-
sional
tool
that
exhibits
quatity,
reliability
and
longev_
itv.
The
PA-Senes
amptifiers
are
2 unit (3.5,,)
tail,
19,,
wide
rack
mountable
units,
Each
cfrannel
of
the
amplifier
comprises
a
balanced
active
input
with
a
buffered
attenuator
driving
a
differential
class
A
drive
stage
which
in
turn
drivel
a
fan-cooled,
class
AB,
MbSFET
output
stage
configured
as
a
source
follower.
The
unit
operates
from
a high
cunent-capable
linear
power
supply.
These
units
have
been
specifically
designed
to
de_
liver
their
high
power
output
with
minima'idistortion,
and
provide
the
critical
degree
of
control
required
by
your
speakers,
at
high
duty
cycles
for
extended
periods.
Introduction
5
C)U-I-PU T
AMP
GE
PRE
ST
INSERT
EUFFER
POIN
T
STAGE
li
tt
rt
DRIVER
)
I
Atrl:
rJU
TFLrT
STAGE
I
t-
------1_F
I
Figure
1
Amplifier
Block
Diagram
-i-
,-J
CHA
oFouNo
swIcH
GFOUP
l
J-
CHA
OU
IPUT
as o
OU
TPUT
srEr!c
POSIS
t-
.-_--1_F
1
Ausbalian
Monitor
/fu