JBL P-4040 Stereo Amplifier User Manual


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FUSE
30A
BRIDGE
– R +– L +
MADE IN THE U.S.A.
+BATT REM GND
BRIDGE
SPEAKER OUTPUTS
POWER
FRONT
REAR
30
6
20
– R +– L ++BATT
REM GND
BRIDGE
SPEAKER OUTPUTS
POWER
FUSE
20A
MADE IN THE U.S.A.
FUSE
30A
BRIDGE
– R +– L +
MADE IN THE U.S.A.
+BATT REM GND
BRIDGE
SPEAKER OUTPUTS
POWER
FRONT
REAR
30
20
– R +– L ++BATT
REM GND
BRIDGE
SPEAKER OUTPUTS
POWER
FUSE
20A
MADE IN THE U.S.A.
LEVEL
INPUT MODE
MO ST
4V .250V
XOVER
FLATHPLP
2V
20
– R +– L ++BATT
REM GND
BRIDGE
SPEAKER OUTPUTS
POWER
FUSE
20A
MADE IN THE U.S.A.
LEVEL
INPUT MODE
MO ST
4V .250V
XOVER
FLATHPLP
2V
Figure 1.This wiring diagram shows
a JBL P-4020 amplifier set to stereo
to drive a pair of full-range speakers.
Figure 2.This wiring dia-
gram shows a JBL P-4020
amplifier set to bridge
mode (mono) to drive a
single subwoofer.
Figure 3.This wiring diagram
shows a JBL P-4020 amplifier set
for tri-mode operation. For a
desired crossover frequency, use
the chart on page 4 to select an
inductor for the subwoofer, and
corresponding capacitors for left
and right speakers.
Figure 4. In this example system,
the front channels of a P-4040
drive a pair of 5-1/4" 2-way speak-
ers, and the rear channels are
bridged to drive a single 12"
woofer.
ST MO
INPUT MODE
PRE OUT
LEVEL
INPUT MODE
MO ST
4V .250V
FRONT
F+R
FLAT
REAR
LP
FRT
LP
FRT REAR
XOVER
FLATHP LP
XOVER
FLATHPLP
LEVEL
4V .250V
2V2V
REAR
INPUT
+R–
+R–
–L+
–L+
AUX
OUT
R
L
R
L
FRONT
FRONT
REAR
LINE LEVEL
INPUT
SPKR LEVEL IN
REAR
R
L
LINE LEVEL
INPUT
SPEAKER LEVEL IN
R
+
–
L
+
–
AUX
OUT
R
L
Figure 5. In this expanded system, a JBL P-4040 drives two pairs of 6-1/2" 2-way speakers.
The JBL P-4040’s pre-amp outputs feed a JBL P-4020 to drive a single 12" subwoofer in
bridge mode.
ST MO
INPUT MODE
INPUT
PRE OUT
LEVEL
INPUT MODE
MO ST
4V .250V
FRONT
F+R
FLAT
REAR
LP
FRT
LP
FRT REAR
REAR
XOVER
FLATHP LP
XOVER
FLATHPLP
LEVEL
4V .250V
2V2V
20
– R +– L ++BATT
REM GND
BRIDGE
SPEAKER OUTPUTS
POWER
FUSE
20A
MADE IN THE U.S.A.
LEVEL
INPUT MODE
MO ST
4V .250V
XOVER
FLATHPLP
2V
LEVEL
INPUT MODE
MO ST
4V .250V
XOVER
FLATHPLP
2V
P-4020/4040 OM. 7/14/98 11:42 AM Page 6
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