User Guide

DESCRJPTION
The
DCM500
is
o high
performonce
power
omplifier
designed lo
meei lhe
needs
of
the
mosl
demonding
sound
reinforcement
inslollotions
ond
opplicotions.
The
omplifier is
designed io
operole
from both
AC
molns
power
os well
os DC.
II{PUTS
The DCM500
feolures
two
porollelled
tronsformer
bolonced
XLR inputs,
one
of
which
con
be used
qs
on output
to
feed oddilionol
power
omplifiers.
OUTPUTS
The DCM500
provides
100v, 70v
ond 4 ohm
speokers oulpuis
vio
o reor
ponel
bonier slrip. A feed
io
drive
odditionol
power
omplifiers
con be loken
from
one
of ihe XLR inputs.
CONTROLS
The fronl
ponel
consists
of o
moins
power
switch,
ond o
recessed,
screwdriver
odjustoble
inpul
ollenuotion
control
METERING
The fronl
ponel
of the DCM500
provides
o bock-lit
LED disploy
indicoiing
power,
high
tempero'lure,
LED VU
meter
ond
moins
foil indicotion.
The moins
foil indicolor
will
only operole
in
the
evenl of o moins
power
foilure ond when
the omplifier
is
connacied lo
o 24vdc
power
suPply.
PROTECTION
The
DCM500
feolures
overlood
ond
overdrive
prolection.
Should the
omplifier
be
overdriven,
o cunenl limiter will
proieci
the
unil, ond in
o
worsl
cose scenorio
lhe omplifier will
shul
down
uniil
the
problem
is
resolved.
Once lhe
problem
is
fixed
{shorted
speoker line,
or
overdriven inpul),
lhe omplifier
will
outomoiicolly
resel ond
conlinue
operoiion. The
omplifier
olso feolures
q
buill-in
com
pressor/limiler
designed to
smoolh
out ony
peoks
in
inpul
signol.
The
DCM500 feolures
generous
heotsinking
ond fon cooling.
The fons
will only
switch on if
lhe
operoiing
temperolure
exceeds o foctory
preset
level.
OTHER FEATURES
The DCM500
con operote from
both AC
ond 24v DC ond
inc ludes
o built-in frickle
chorge
circuil.
ARCHITECTURAL
&
ENGINEERING
SPECITIICATIONS
The
power
omplifier sholl
hove
lwo ironsformer
bolonced XLR
inputs,
one of which
con be
used io feed
oddilionol
power
ompliiiers.
The
omplifier sholl
be copoble
of delivering
500
wolts
RMS inlo
I 00, 70 voli line
or 4 ohms loods.
Speoker conneclion
sholl be
vlo
o reor
ponel
bonier strip.
The
unit sholl
operole from
both
AC
moins
power
or from o
24v
DC
botlery
supply. The
omplifier sholl include
o
buill-in
lrickle
chorge
circuit.
The
omplifier
sholl feoture
overlood
ond overdrive
proteclion
ond
sholl olso
include
cooling fons, which
should
only be octive if
the
oPeroling temperoiure
exceeds
o fociory
presel
level.
The
power
omplifier
sholl be
of
high
quolity,
suitoble for
lhe
most
demonding
PA
lnsiollotions
ond opplicolions.
The
unit sholl hove o frequency
response
of no less thon
50Hz lo
lskHz
(+/-3db).
Distortion
ot
lkHz
sholl not exceed
0.5%. The
Signol lo
Noise rotio sholl be
-
76db
or
greoler.
The
unil sholl be
pockoged
in o
rugged
2 RU melol
chossis
suiloble
for desk
or rock
mounting.
The
power
omplifier
sholl
be on
Audio Telex
DCM500.
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Rear Panel View of the DCM500