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VR 404
ANSCHLÜSSE UND FUNKTIONEN
Vorderteil
A SPEAKERS
Links und
Rechts der
Kanäle A.
Das Signal ist
über Ambient
Equalizer
erhältlich und
durch Kontrolle
am Obergerät
regulierbar.
IN A
IN A + B
Eingang von Links
und Rechts des Ver-
stärkers. Er steuert
gleichzeitig die
zwei A-Kanäle des
Laut-sprechers und
kann auch die zwei
B-Kanäle wenn man
den Schalter (am
Obergerät) IN A +
B wählt.
Die Verbindungen
müs-sen am Au-
sgang des
Vorverstärkers des
Gerätes angebracht
werden, wie z.B. ein
Autoradio, CD
Spieler, ein
elektronischer cros-
sover oder andere
Geräte zur Wieder-
gabe des Tons mit
Vorverstärker.
AUSGANG
BY-PASS
OUT BY-
PASS
Vorverstärker
Ausgang vom
By-Pass des
Verstärkers.
Das Signal steht
zur Verfügung
unter Filterak-
tion Ambient
Equalizer
(unabhängig)
und bekommt
das Signal vom
Haupteingang
IN.
Diese sind für
einen
zusätzlichen
Verstärker,
elektronischen
crossover.
EINGANG B
IN B
Eingang Links
und Rechts des
Lautsprechers.
Sie werden
durch MODE
(am oberen
Lautsprecher)
in Position IN
A - IN B
selektiert.
B SPEAKERS
Verbinden Sie Ihre
Lautsprecher "rechts und
links" mit den
Anschluβklemmen des
Verstärkers Beachten Sie
bitte die Polung der
Lautsprecher. Eine falsche
Polung fuhrt zwar nicht zu
einem Defekt, aber der
Klang der Lautsprecher ist
miserabel. Ihre Endstufe
eignet sich auch für niedrige
Impedanzen, somit ist es
möglich, mehrere parallel
anzuschlieβen. Fur beide
Anwendungen
berucksichtigen Sie bitte den
Kabelquerschnitt für das
Stromkabel entsprechend
unserer Angaben auf der
letzten Seite.
HAUPTEINGANG
MONO
Ausgang (+L
und -R) zum
Anschliessen
eines mono-
Lautsprechers
wenn Mono IN
R in Funktion
durch Selektion
am Obergerät.
MONO
Ausgang (
L- und R+
) zum
Einbau eines Mono-
Lautsprechers bei Mono-
funktion IN R (Eingang
right) oder MIXED MONO
L + R (Summe der Kanale)
durch die dazu bestimmten
Tasten am Obergerät.
AUSGANGS
ANSCHLÜSSE ChA
AUSGANGSANSCHLÜSSE
Ch B
18
27
H
I
P
A
S
S
S
E
C
T
I
O
N
L
O
P
A
S
S
S
E
C
T
I
O
N
M
O
D
E
SECTION LO - PASS (B-D-F-H-I)
Left and Right channels of LO-PASS section.
B• LEVELS: Left and Right level control of LO-PASS channels. Sensitivity is between
0.15 to 1.5 Volts.
D• CROSSOVER FREQUENCY: Cut-off frequency linear control of LO-PASS filter.
Frequencies range is divided in two value scales which can be selected through the
switch (F).
F• FREQUENCIES RANGE: Switch which divides the cut-off frequency adjustment in
two ranges: 1° (40 Hz - 200 Hz), 2° (160 Hz - 800 Hz).
HQ control: "Q" factor control of the filter from 0.7 to 3. At the minimum value, the LO-
PASS filter acts like Butterworth. At the maximum value, the filter shows an emphasis
(12 dB) according to the selected cut-off frequency, in order to drive not very efficient
Woofers or Subwoofers in a better way.
IMIXED MONO - BRIDGE: In ON position, it mixes Left and Right inputs (IN or IN LO)
of LO-PASS channels. The type of power output connection allows to choose the mono
two channels configuration or mono in BRIDGE configuration, necessary in case there
is only one Subwoofer.
SECTION HI - PASS (A-C-E)
Left and Right channels of HI-PASS section.
A LEVELS: Left and Right level control of HI-PASS channels. Sensitivity is between 0.15
to 1.5 Volts.
C• CROSSOVER FREQUENCY: Cut-off frequency linear control of HI-PASS filter.
Frequencies range is divided in two value scales which can be selected through the
switch (E).
E• FREQUENCIES RANGE: Switch which divides the cut-off frequency adjustment in
two ranges: 1° (40 Hz - 200 Hz), 2° (160 Hz - 800 Hz).
MODE ( J )
J• Switch to use two or four inputs:
IN LO Position (four inputs) It allows to drive HI-PASS channels with IN preamplified
input and to drive LO-PASS channels with IN LO preamplified input.
OUT - HI (two inputs, two outputs) It allows to drive LO- PASSchannels with IN pre
amplified input. It activates the OUT-HI preamplified output.
AMBIENT EQUALIZER (L-K)
LSwitch which activates (ON) or disactivates (OFF) the AMBIENT EQUALIZER filter.
The AMBIENT EQUALIZER is on the general input (IN); it acts on all power or
preamplified outputs when the MODE switch is on OUT-HI. If the MODE switch is
on IN LO, the AMBIENT EQUALIZER doesn't act on LO-PASS power output.
K• Level control which controls the filter action intensity.
UPPER CONTROLS
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