LR 21
1 XR
11
DEUTSCH
TECHNISCHE DATEN
NETZTEIL
11
÷
15 VDC
RUHESTROM
1 A
MAXIMALER STROMVERBRAUCH (bei Nennleistung)
20 A
MAX DYNAMIC POWER (1 Kanäle je 4 Ohm Last)
210 W
MAX DYNAMIC POWER (1 Kanäle je 2 Ohm Last)
420 W
NENNLEISTUNG (Tol. +10 %; -5 %)
1 Kanäle je 4 Ohm Last; 0,3 % Klirrfaktor; 12 VDC
140 W (RMS)
DAUER-AUSGANGSLEIST. (1 Kanäle je 4 Ohm Last; 13,8 VDC)
155 W (RMS)
DAUER-AUSGANGSLEIST. (1 Kanäle je 2 Ohm Last; 13,8 VDC)
250 W (RMS)
IMPULSIVE OUT POWER (1 Kanäle je 1 Ohm Last; 13,8 VDC)
410 W (RMS)
KLIRRFAKTOR THD (bei 1 KHz; 90 % Nennleistung)
0,07 %
DÄMPFUNGSFAKTOR (4 Ohm)
120
ANSTIEGSZEIT
4,5
µ
S
STORABSTAND
98 dBA
EINGANGSEMPFINDLICHKEIT
0,3 V
÷
4 VRMS
EINGANGSIMPEDANZ
15 KOhm
LASTIMPEDANZ
8 - 4 - 2 Ohm
CROSSOVER FREQUENZ
50; 60; 80; 100; 120 Hz
FLANKENSTEILHEIT
12 dB/Oct. Butterworth
LO-BOOST FREQUENZ
45 Hz
LO-BOOST GEWINN
0 / +6 dB
HI-PASS AUSGANGSGEWINN
0 dB
REMOTE IN
7
÷
15 VDC
ABMESSUNGEN (BxHxT)
175 x 50 x 330 mm
FRANÇAIS
DONNÉES TECHNIQUES
ALIMENTATION
11
÷
15 VDC
CONSOMMATION MIN.
1 A
CONSOMMATION MAX. (Puissance Nominale)
20 A
MAX DYNAMIC POWER (1 Ch x 4 Ohm)
210 W
MAX DYNAMIC POWER (1 Ch x 2 Ohm)
420 W
PUISSANCE NOMINALE CONTINUE (Toll. +10 %; -5 %)
1 ch x 4 Ohm; 0,3 % DHT; 12 VDC
140 W (RMS)
PUISSANCE SORTIE CONT. (1 ch x 4 Ohm; 13,8 VDC)
155 W (RMS)
PUISSANCE SORTIE CONT. (1 ch x 2 Ohm; 13,8 VDC)
250 W (RMS)
IMPULSIVE OUT POWER (1 ch x 1 Ohm; 13,8 VDC)
410 W (RMS)
DISTORSION HARM. TOTALE (1 KHz; 90 % Puiss. Nom.)
0,07 %
COEFFICIENT D'AMORTISSEMENT (4 Ohm)
120
TEMPS DE MONTEE
4,5
µ
S
RAPPORT SIGNAL/BRUIT
98 dBA
SENSIBILITE D'ENTREE
0,3 V
÷
4 VRMS
IMPEDANCE D'ENTREE
15 KOhm
IMPEDANCE DE CHARGE
8 - 4 - 2 Ohm
FREQUENCES DE COUPURE
50; 60; 80; 100; 120 Hz
PENTE DES FILTRES
12 dB/Oct. Butterworth
FRÉQUENCE DU FILTRE LO-BOOST
45 Hz
GAIGNE DU FILTRE LO-BOOST
0 / +6 dB
GAIGNE SORTIES HI-PASS
0 dB
REMOTE IN
7
÷
15 VDC
DIMENSIONS (BxHxL)
175 x 50 x 330 mm
14
LR 131 XR - LR 21
1 XR
CONTROLS
AND FUNCTIONS
FREQUENCY
SWITCH
INDICATORS
LIGHTS
X-OVER
Crossover
sec-
tion.
Tripping
adjustment
for
selecting
HI-
PASS
/
LO-
PASS
crossover
frequency.
Filters
slope
is
12
dB/Oct.
(crossover
at
-3
dB).
Frequencies
can
be
chosen
among:
50-60-
80-100-120
Hz.
HI-PASS
frequencies
can
be
obtained
in
stereo
from
OUT-HI
out-
puts,
while
LO-
PASS
frequencies
are
mixed
in
mono
and
amplified
on
the
output
connectors
(SPEAKERS).
ON
Lit
when
the
amplifier is on.
PHASE
Configuration
switch
for LO-PASS output.
It
allows
to
invert
the
signal
phase
on
the
SPEAKERS terminals.
Position
0:
LO-PASS
and
HI-PASS
phases
(OUT-HI
outputs)
are
aligned.
Position
-
ϕ
:
LO-PASS
phase
is
inverted
(-180
°
)
in
relation
to
HI-PASS
phase.
It
is
useful
in
situations
where,
acoustically,
linearity
is
lacking
in
the
crossover
zone
of
HI-
PASS/LO-PASS
frequencies.
GENERAL
INPUT
PRE IN
Left
and
Right
inputs
of
the
am-
plifier.
They
can
be
used
to
amplify
the
PRE
output
of
a
signal
source
(radio,
CD-
DAT),
an
electronic
cross-
over
output
or
an
output
of
any
kind
of
signal
processor
at
pre-
amplified level.
HI-PASS
OUTPUT
OUT HI
FRONT
REAR
Preamplified
HI-PASS
outputs.
Cut-off
frequency
is
determined
by
the
X-OVER
switch
on
50-
60-80-100-120
Hz.
They
are
for
a
stereo
amplifier,
for
the
reproduction
of
HI-PASS
FRONT
fre-
quencies
and
HI-PASS
REAR
if
provided.
PHASE SWITCH
LEVEL CONTROLS
BOOST
Level
adjustment
for
the
band-pass
filter
in
the LO-PASS section.
It allows to highlight a limited frequencies
range centered at 45 Hz.
Adjustment
range
is
between
0
and
+6
dB.
It
is
useful
when
dealing
with
weak
SUBWOOFERS systems.
LO-PASS
Level
control
for
the
amplifier
LO-
PASS output.
Sensitivity
varies
from
a
maximum
of
300
mV
to
a
minimum of 4 V.
SAFE
When
lit,
it
indi-
cates
the
inter-
vention
of
pro-
tection
circuits:
in
case
of
over-
heating
(tempe-
rature
exceeding
80
°
C
/176
°
F
)
or
output
ano-
malies
(presen-
ce
of
continuous
current,
short
circuit,
or
dangerously
low
load
impedan-
ce).
When
protection
circuits
intervene,
the
amplifier
shuts
down.
Turn
the
ampli-
fier off.
When
the
pro-
blem
is
corrected,
turn
the
amplifier
back on.