11
C
ONNECTING THE
S
PEAKERS TO THE
R
EST OF
Y
OUR
S
YSTEM
Input/Output Assignments
S
SD
DEEC
C--4
40
00
00
0X
X O
Ouuttppuuttss ttoo A
Am
mpplliiffiieerrss
S
S4
40
00
00
0IIC
C
N
Nuum
mbbeerr
C
Chhaannnneell
S
SD
DEEC
C--4
40
00
00
0X
X
9
LEFT FRONT-LOW
A1
10
LEFT FRONT-HI
A2
11
RIGHT FRONT-LOW
A3
12
RIGHT FRONT-HI
A4
13
CENTER FRONT-LOW
B1
14
CENTER FRONT-HI
B2
15
LEFT SIDE 1
B3
16
LEFT SIDE 2
B4
N/C
C1
N/C
C2
17
RIGHT SIDE 1
C3
18
RIGHT SIDE 2
C4
N/C
D1
N/C
D2
19
LEFT REAR
D3
20
RIGHT REAR
D4
S
Suurrrroouunndd P
Prroocceessssoorr ttoo S
SD
DEEC
C--4
40
00
00
0P
P IInnppuuttss
S
S4
40
00
00
0IIC
C
N
Nuum
mbbeerr
C
Chhaannnneell
S
SD
DEEC
C--4
40
00
00
0P
P
1
FRONT LEFT
A1
2
FRONT RIGHT
A2
3
CENTER
A3
4
LEFT SIDE
A4
5
RIGHT SIDE
B1
6
LEFT REAR
B2
7
RIGHT REAR
B3
8
SUBWOOFER
B4
N/C
C1
N/C
C2
N/C
C3
N/C
C4
To connect the Synthesis Array loudspeakers to the power amplifiers or receiver, use two-conductor insulated speaker
wire. We recommend #14 AWG wire as a minimum size. Your JBL dealer can recommend suitable cables. Both the
SAM1HF and SAM2LF utilize push-style friction binding posts that can accommodate up to #10 AWG stranded wire.
P
REPARING THE
H
OOKUP
W
IRE
1. First determine the distance between your amplifier and the most distant speaker in each group (fronts, surrounds,
back surrounds, subwoofers).
2. Now make the hookup wires for all speakers in each group this length, even if one speaker is much closer to your
amplifier than the other. This will help maintain proper signal balance.
3. Strip off 3/8" of insulation from both ends of each conductor.
4. Twist each set of standard wires into a tightly bunched spiral.
5. Speakers and electronics terminals have corresponding (+) and (–) terminals. Most manufacturers of speakers and
electronics, including JBL, use red to denote the (+) terminal and black for the (–) terminal, although some electronics
manufacturers have adopted the new color-coding standard promulgated by the Consumer Electronics Association.
In that case, the positive terminal will be colored to correspond to the channel position, while the negative terminal
will be black.
It is important to connect all speakers identically: (+) on the speaker to (+) on the amplifier and (–) on the speaker to
(–) on the amplifier. Wiring “out of phase” results in thin sound, weak bass and poor imaging.
With the advent of multichannel surround sound systems, connecting all of the speakers in your system with the cor-
rect polarity remains equally important to preserve the proper ambience and directionality of the program material.
Now find a visual difference between the two conductors of each molded pair of speaker wires. Differentiating
marks can be a different color wire (copper or silver); a strand of yarn in one conductor; thin, raised ribs on one part
of the outer insulation; or a printed marking on one part of the outer insulation. It doesn’t matter which of the two
strands go to the (+) and (–) on the speakers and amplifiers, as long as all speakers are connected identically. Push
down on the binding post, insert the wire into the hole, and release.
C
ONNECTIONS TO THE
S
YNTHESIS
E
LECTRONICS
The SAM1HF and SAM2LF speaker modules do not have a built-in crossover. They must be used with the active
crossover as designed in the SDEC-4000 digital equalizer in a bi-amplified configuration. Each SAM module will
require a single amplifier channel. Connect the SAM modules according to the chart on the following page.
NOTES:
• The SAM1HF will connect to the HI output of the SDEC-4000.
• The SAM2LF will connect to the LOW output of the SDEC-4000.
• Please consult the SDEC-4000 installation guide for detailed instructions.
• DO NOT use a full-range output from an amplifier, as damage may occur.
10
C
ONNECTING THE
S
PEAKERS TO THE
R
EST OF
Y
OUR
S
YSTEM
S
SD
DEEC
C--4
40
00
00
0P
P O
Ouuttppuuttss ttoo A
Am
mpplliiffiieerrss
S
S4
40
00
00
0IIC
C
N
Nuum
mbbeerr
C
Chhaannnneell
S
SD
DEEC
C--4
40
00
00
0P
P
21
SUBWOOFER 1
D1
22
SUBWOOFER 2
D2
23
SUBWOOFER 3
D3
24
SUBWOOFER 4
D4
