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CARVIN DCM150 Operating Manual page 3

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CONNECTING THE SYSTEM
The following diagrams illustrate typical connections. Although these illustrations show
XLR's for inputs and 1/4" plugs for outputs, a variety of alternative connectors are available.
For most stage setups, mono (not stereo) is recomended. The reason for this is the audi-
ence on the left will not hear the same program material on the right if the program is done
in true stereo.
INPUT CONNECTIONS
The preferred method of connecting input signals is with balanced XLR's (two conductors
plus a shield wire such as Carvin professional XLR cables). Balanced input signals provide
the highest gain and best noise rejection. 1/4" stereo cables are also capable of providing
balanced input by using a stereo plug (tip-positive, ring-negative & sleeve-ground). Not all
sources provide balanced outputs. If this is the case, standard 1/4" input cables work fine
with cable lengths under 25 feet (single conductor plus shield) providing there is no ground
loop in the system.
TYPICAL MONURAL SETUP
To signal use XLR or 1/4" 2 or 3 cond. shielded cable
DCM150
1
STEREO AMPLIFIER
8 OHMS/CH 50 WATTS
800-854-2235
4
MIN.
www.carvin.com
4 OHMS/CH 75 WATTS
8 BRIDGED 150 WATTS
MADE IN THE
USA
120VAC~60Hz
SERIAL NUMBER
125VA INTERNAL FUSE
Ch 1 Speaker
Use 16 guage or heavier
Non shielded cables (PH50).
Plug into the 1/4" speaker jacks
or strip and insert into speaker
Binding Post (Red+ Black-)
TYPICAL BRIDGED SETUP
Use a XLR or 1/4" 2 or 3 cond. shielded cables
DCM150
1
STEREO AMPLIFIER
8 OHMS/CH 50 WATTS
800-854-2235
www.carvin.com
4
MIN.
4 OHMS/CH 75 WATTS
8 BRIDGED 150 WATTS
MADE IN THE
USA
120VAC~60Hz
SERIAL NUMBER
125VA INTERNAL FUSE
70V Distribution System:
"TAP" Wattage of transformer
(can vary from diagram)
divided by total wattage
of Amp = Number of
transformer/speaker(s)
that can be hooked up.
15w
16
7w
8
+
3w
4
1w
C
C
PARALLEL switch
must be (IN)
SPEAKERS
2
INPUT 1
INPUT 2
BRIDGE
GND
PAR
BRIDGE
LIFT
8 OHMS
4
MIN.
MIN.
BRIDGE switch
must be OFF (OUT).
Ch 2 Speaker
Activate the BRIDGE switch
(IN). Control the level by Ch 1
( Ch 2 does not function.
SPEAKERS
2
INPUT 1
INPUT 2
BRIDGE
GND
PAR
BRIDGE
LIFT
8 OHMS
4
MIN.
MIN.
OR
Single speaker or
system connected
in BRIDGE mode.
Minimum imp. 8
15w
16
7w
8
+
3w
4
1w
C
C
SPEAKER CONNECTIONS
There are two 1/4" speaker jacks available for speaker connections (one for each channel).
Additionally, there are two pairs of binding posts that not only allow for high current con-
nections to speakers but are also used for "bridging" the amps output (see rear panel sec-
tion 14 & 15). Use heavy gauge wire for all speaker connections (no lighter than 16 gauge
up to 50', Carvin's PH50). Caution: Never use shielded cable (microphone or instrument
input cable) to connect speakers. These cables will not handle the required current and may
cause your amplifier to oscilate because of the internal shield.
TYPICAL STEREO (BIAMP) SETUP
Ch 1 Left
Ch 2 Right
Use a XLR or 1/4" 2 or 3 cond. shielded cables
DCM150
1
STEREO AMPLIFIER
8 OHMS/CH 50 WATTS
800-854-2235
4
MIN.
www.carvin.com
4 OHMS/CH 75 WATTS
8 BRIDGED 150 WATTS
MADE IN THE
USA
120VAC~60Hz
SERIAL NUMBER
125VA INTERNAL FUSE
Full Range
(Hi Freq. Bi-Amp)
Horn System
Use 16 guage or heavier
Non shielded cables (PH50).
Plug into the 1/4" speaker jacks
or strip and insert into speaker
Binding Post (Red+ Black-)
Full Range
(Lo Freq. Bi-Amp)
Woofer System
BALANCED MIC/LINE XLR CABLES
INTERRUPT (PATCH)
STEREO OR BALANCED SIGNAL LINE
(Unshielded)
(Shielded)
SPEAKER OR SIGNAL LINE CABLE
(Hi Freq. Bi-Amp)
(Lo Freq. Bi-Amp)
SPEAKERS
2
INPUT 1
INPUT 2
BRIDGE
GND
PAR
BRIDGE
LIFT
8 OHMS
4
MIN.
MIN.
BRIDGE switch
must be OFF (OUT).
3
SHIELD
-NEG.
+POS.
2
1
SHIELD
1
2
+POS.
3
-NEG.
GND
1
+ SIGNAL (BAL.)
2
3
- SIGNAL (BAL.)
+ SIGNAL (RETURN)
- SIGNAL (SEND)
SHIELD (GROUND)
+ TIP (HOT)
SHIELD (GROUND)
(Shielded)

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