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Peavey CS-400 User Manual

Peavey CS-400
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Referring
to
Diagram
3,
crossover
networks
(PL-6
™
,
-7
™
,
or
-8
™
)
are
shown
plugged
into
both
crossover
accessory
sockets
(8)
and
transformer
modules
(PL-2’s
™
)
are
plugged
into
both
transformer
accessory
sockets
(6).
This
configuration
now
has
the
makings
of
a
complete
stereo,
balanced
bi-amp
system.
The
only
thing
required
is
an
additional
stereo
power
amplifier
which,
together
with
the
existing
dual
power
amp
sections
of
the
CS-400
™
,
make
up
the
four
independent
power
amplifiers
required
for
a
stereo
bi-amplification
system.
You
will
notice
from
the
diagram
that
when
the
crossover
networks
were
substituted
for
the
jumpers,
the
power
amp
input
connections
were
disconnected
from
the
crossover
circuit.
In,
order
to
complete
the
system,
external
patching
must
be
accomplished
using
shielded
patch
cords.
As
per
previous
discussion,
bi-amplification
systems
generally
require
more
power
for
the
low
frequency
system
than
the
high
frequency
system
In
fact,
an
often
used
combination
is
a
ratio
of
two-to-one
(twice
as
much
for
the
lows
as
for
the
highs).
Such
a
system
can
be
achieved
usinq
a
Peavey
CS-800
™
stereo
power
amp
for
the
two
low
frequency
channels
and
the
Peavey
CS-400
™
for
the
two
high
frequency
channels.
This
system
can
be'realized
by
patching
(he
high
outs
(10)
to
the
inputs
of
the
CS-400
™
and
by
patching
the
low
outs
of
the
crossover
network
(9)
to
the
inputs
of
the
CS-800
™
.
Four
shielded
patch
cords
are
required
in
this
configuration.
Care
must
be
taken
to
connect
the
proper
speaker
system
components
to
the
correct
power
amp
outputs.
A
diagram
is
included
showing
all
connections.
It
is
recommended
that
all
connections
be
completed
and
double
checked
before
applying
power.
Wrong
connections
could
result
in
loudspeaker
damage.
Always
remember
the
power
amplifiers
should
be
switched
on
to
A.C.
power
last
in
the
chain
of
audio
equipment,
and
only
then
with
level
controls
at
“0.”
Then
gradually
increase
levels
to
check
connections
and
make
sure
at
low
sound
pressure
levels
that
the
system
(especially
bi-amped
situations)
has
proper
routing
of
high's
and
low’s
to
respective
amps,
horns,
and
bass
enclosures.
A
very
effective
bi-amp
situatior
can
be
created
using
the
Peavey
CS-400
™
in
conjunction
with
the
Peavey
CS-800
™
as
illustrated
in
the
wiring
diagram
above.
Hookup
is
as
follows:
1
The
high
output
of
the
crossover
on
each
channel
of
the
CS-400
™
is
patched
to
the
input
of
that
channel
using
shielded
cables.
(Channel
A
high
output
to
Channel
A
input
/
Channel
B
high
output
to
Channel
B
input.)
2.
The
low
output
on
each
channel
of
the
CS-400
™
is
patched
to
the
input
of
the
corresponding
channel
of
the
CS-800
™
using
shielded
cables.
(CS-400
™
Channel
A
low
output
to
CS-800
™
Channel
A
input
/
CS-400
™
Channel
B
low
output
to
CS-800
™
Channel
B
input.)
3.
The
CS-400
™
speaker
outputs
are
connected
to
the
respective
high
frequency
enclosures.
4.
The
CS-800
™
speaker
outputs
are
connected
to
the
respective
low
frequency
enclosures.
The
use
of
the
DDT®
compression
system
adds
a
new
dimension
to
a
total
bi-amp
system.
Since
the
low
frequency
power
amp
and
the
high
frequency
power
amp
each
have
their
own
“Distortion
Detection
Technique”
circuitry
and
are
completely
independent,
when
signal
conditions
exist
which
could
cause
clipping
in
the
low
frequency
power
amp,
the
DDT®
system
will
simply
limit
that
portion
of
the
total
sound
system.
This
will
in
no
way
affect
the
high
portion
of
the
bi-amp
system
and
it
is
free
to
increase
in
level
until
it,
too,
runs
into
clipping.
Then,
at
that
point,
the
high
frequency
system
will
also
go
into
compression.
This
is
a
very
effective
two-level
compression
system
and
will
yield
a
sound
pressure
level
unmatched
by
conventional
broad-band
compression
techniques.
Several
comments
must
be
made:
Only
one
crossover
module
is
required
for
a
monaural
bi-amp
system.
The
outputs
of
the
crossover
can
drive
several
power
amp
inputs.
Parallel
input
jacks
can
be
used
to
“daisy
chain"
to
additional
power
amps
for
either
the
low
or
high
frequency
systems.

Table of Contents

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Peavey CS-400 Specifications

General IconGeneral
Minimum Load Impedance (Stereo)4 ohms
Input Impedance20 kOhms
Frequency Response20 Hz to 20 kHz
Total Harmonic DistortionLess than 0.1%
Input Sensitivity1.0V RMS for rated output
Signal to Noise Ratio>100dB
Power Output200 Watts RMS per channel at 4 Ohms

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