Operation Manual
Converting the Output of Unbalanced Devices
The S direct can be quite useful on stage or in the studio for connecting unbalanced
devices, particularly keyboards. The output levels of many keyboards are low, so their sig-
nals can benefit greatly by connecting their unbalanced outputs to the S direct. By doing
so the signal can be
sent cleanly for long
distances while ben-
efiting from the low
noise and common
mode rejection pro-
vided by S directʼs bal-
anced low-level out-
put. The diagram fol-
lowing shows a typical
hook-up for a stereo
keyboard connected to
a stereo stage monitor
system and the main
PA mixer.
www.samsontech.com
LEVEL
GTR/SPK
DESIGNED AND ENGINEERED IN THE
UNITED STATES BY SAMSON TECHNOLOGIES
OUTPUT/LINKINPUT
SD100
2T IN 2T OUT
2T TO MI
X
CR MIX
MONO OU
T
C/ROOM
+PHONE
S
5
MIX/2T
RIGHT RIGHT
AUX 2 OU
T
LEFT RIGHT LEFT RIGH
T
MONO OUTAUX 1 OUT LEFT LEFT
5
0 1
0
0 10
L RMIXPHONES
CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5/6
MIC/LINE 2 MIC/LINE 4 MIC/LINE 5/6 MIC/LINE 7/8
CHANNEL 7/8
R LINE IN R LINE IN
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
10
5
15
5
0
0
15
1010
55
15
LO CUT
PAN
L R
AUX 1
MO
N
5
0 1
0
AUX 2
DS
P
5
0 1
0
L
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
10
5
15
5
0
0
15
1010
55
15
LO CUT
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
10
5
15
5
0
0
15
1010
55
15
LO CUT
PAN
R
AUX 1
MO
N
5
0 1
0
AUX 2
DS
P
5
0 1
0
PAN
L R
AUX 1
MO
N
5
0 1
0
AUX 2
DS
P
5
0 1
0
L
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
10
5
15
5
0
0
15
1010
55
15
LO CUT
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
1010
5
15
5
0
0
15
1010
55
15
BAL
AUX
1
MO
N
AUX
2
DS
P
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
1010
5
15
5
BAL
L R
AUX 1
MO
N
5
0 1
0
0
0
15
1010
55
15
AUX 2
DS
P
5
0 1
0
PAN
R
AUX 1
MO
N
5
0 1
0
AUX 2
DS
P
5
0 1
0
L R
5
0 1
0
5
0 1
0
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15
15
15
DIGITAL EFFECTS
MASTER SECTION
MASTER SECTIO
N
5
0 10
MAX I M U M D YN A M I C R A N G E
30
5
-2
6
60
+26
GAIN
CLIP
30
5
-2
6
60
+26
GAIN
CLIP
30
5
-2
6
60
+26
GAIN
CLIP
30
5
-2
6
60
+26
GAIN
CLIP
REC
RE
C
REC REC
REC
RE
C
MIC/LINE 1 MIC/LINE 3
DIGITAL EFFECTS
DSP
BIT
24
DSP TO MON
SELEC
T
POWER+48V
PEA
K
+6
0
-6
-12
-20
1 LARGE HAL
L
2 MEDIUM HAL
L
3 LARGE ROOM
4 VOCAL RM
.
5 VOCAL RM.
2
6 CHORUS+REVERB
7 CHORUS+DELA
Y
8 STAIRWEL
L
DSP
PEA
K
AUX
RET
1
AUX/DSP
RET
2
5
0 1
0
5
5
0 1
0
5
0 1
0
1
2
3 6
7
5
4
8
HARD
DISK
MODE
SIGNAL FLOW
SIGNAL FLOW
Balanced Outputs
(opposite panel)
On Stage
Keyboard
Monitors
Input
Link
Output
Main PA
Mixer
Link
Output
Typical Stereo Keyboard
Hook-up
Keyboard Stereo
Output
www.samsontech.com
LEVEL
GTR/SPK
DESIGNED AND ENGINEERED IN THE
UNITED STATES BY SAMSON TECHNOLOGIES
OUTPUT/LINKINPUT
SD100
SIGNAL FLOW
Input
SIGNAL FLOW
www.samsontech.com
LEVEL
GTR/SPK
DESIGNED AND ENGINEERED IN THE
UNITED STATES BY SAMSON TECHNOLOGIES
OUTPUT/LINKINPUT
SD100
2T IN 2T OUT
2T TO MI
X
CR MIX
MONO OUT
C/ROOM
+PHONES
5
MIX/2T
RIGHT RIGHT
AUX 2 OUT
LEFT RIGHT LEFT RIGHT
MONO OUTAUX 1 OUT LEFT LEFT
5
0 1
0
0 10
L RMIXPHONES
CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5/6
MIC/LINE 2 MIC/LINE 4 MIC/LINE 5/6 MIC/LINE 7/8
CHANNEL 7/8
R LINE IN R LINE IN
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
10
5
15
5
0
0
15
1010
55
15
LO CUT
PAN
L R
AUX 1
MO
N
5
0 1
0
AUX 2
DSP
5
0 1
0
L
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
10
5
15
5
0
0
15
1010
55
15
LO CUT
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
10
5
15
5
0
0
15
1010
55
15
LO CUT
PAN
R
AUX 1
MON
5
0 1
0
AUX 2
DSP
5
0 1
0
PAN
L R
AUX 1
MO
N
5
0 1
0
AUX 2
DSP
5
0 1
0
L
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
10
5
15
5
0
0
15
1010
55
15
LO CUT
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
1010
5
15
5
0
0
15
1010
55
15
BAL
AUX
1
MON
AUX
2
DSP
HF
12K
MF
2.5K
15
1010
5
15
5
0
LF
80Hz
0
15
1010
5
15
5
BAL
L R
AUX 1
MON
5
0 1
0
0
0
15
1010
55
15
AUX 2
DSP
5
0 1
0
PAN
R
AUX 1
MON
5
0 1
0
AUX 2
DSP
5
0 1
0
L R
5
0 1
0
5
0 1
0
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15 15
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
10
5
0
10
5
20
30
40
15
15
15
DIGITAL EFFECTS
MASTER SECTION
MASTER SECTIO
N
5
0 10
MA X IM U M D Y N A M I C R A N G E
30
5
-2
6
60
+26
GAIN
CLIP
30
5
-2
6
60
+26
GAIN
CLIP
30
5
-2
6
60
+26
GAIN
CLIP
30
5
-2
6
60
+26
GAIN
CLIP
REC
REC
REC REC
REC
REC
MIC/LINE 1 MIC/LINE 3
DIGITAL EFFECTS
DSP
BIT
24
DSP TO MON
SELEC
T
POWER+48V
PEAK
+6
0
-6
-12
-20
1 LARGE HALL
2 MEDIUM HAL
L
3 LARGE ROOM
4 VOCAL RM
.
5 VOCAL RM.
2
6 CHORUS+REVER
B
7 CHORUS+DELA
Y
8 STAIRWEL
L
DSP
PEAK
AUX
RET
1
AUX/DSP
RET
2
5
0 1
0
5
5
0 1
0
5
0 1
0
1
2
3 6
7
5
4
8
HARD
DISK
MODE
o
T
ransient Attack
POWER
MODEL 3500 350 WATTS
INPUT PRE AMP CONTOUR MASTER
0
3
5
10
15
-1
8
3
5
10
15
+1
8
0
3
5
10
15
-1
8
3
5
10
15
+1
8
LOW PASS HIGH PASS
5
4
3
2
1
0
6
7
8
9
10
VOLUME
PASSIVE
COMPRESSION
5
4
3
2
1
0
6
7
8
9
5
4
3
2
1
0
6
7
8
9
10
5
4
3
2
1
0
6
7
8
9
10
+15
+12
+9
+6
+3
+2
0
-2
-3
-6
-9
-12
-15
+15
0
-15
8KHz5KHz3KHz2KHz1KHz500Hz250H
z125Hz64Hz30Hz
8KHz
5KHz3KHz2KHz1KHz500Hz250H
z125Hz64Hz30Hz
GRAPHIC EQUALIZER
IN
OU
T
A B
TUBE SOLID STATE
ACTIVE
SIGNAL FLOW
SIGNAL FLOW
Balanced Output
(opposite panel)
Amplifier
Input
Link
Output
PA Mixer
Amp Speaker
Output
Amp Speaker
Input
6
Operating the S direct
NOTE:
This example may
appear to be the same as
the previous, however in
this example, the S direct
is tapping the sound of the
instrument and amp, as
opposed to just the instru-
ment itself.