Samson S-direct Direct Box User manual

S-direct Direct Box
Samson
Brand
Samson
Model
S-direct Direct Box
Category
Supplementary music equipment
Type
User manual

This manual is also suitable for

Samson S-direct Direct Box is a versatile tool for connecting musical instruments and other audio sources to mixers and PA systems. It features an input for connecting a guitar or bass, a level switch for matching the output to the input of an amplifier or mixer, and a balanced XLR output for sending the signal to a PA system. The S-direct also has a ground lift switch to eliminate ground loops, a battery/phantom power switch for powering the unit, and an output/link jack for sending the signal to an amplifier or monitor system.

Samson S-direct Direct Box is a versatile tool for connecting musical instruments and other audio sources to mixers and PA systems. It features an input for connecting a guitar or bass, a level switch for matching the output to the input of an amplifier or mixer, and a balanced XLR output for sending the signal to a PA system. The S-direct also has a ground lift switch to eliminate ground loops, a battery/phantom power switch for powering the unit, and an output/link jack for sending the signal to an amplifier or monitor system.

GND LIFT
BALANCED OUTPUT
PIN 1 GND
PIN 2 HOT
PIN 3 COLD
BATTERY
MADE IN CHINA
BATTER
Y
PHANTOM
Direct Insertion Box
www.samsontech.com
LEVEL
GTR/SPK
DESIGNED AND ENGINEERED IN THE
UNITED STATES BY SAMSON TECHNOLOGIES
OUTPUT/LINKINPUT
SD100
--
Table Of Contents
Front and Rear Panel Layout
3
Powering S direct
3
Direct insertion of an instrument into a PA system 4
High power signals 5
Converting the output of unbalanced devices 6
Specifications
7
K-TEAM
A
P R O D U C T I O N
Copyright 2002, Samson Technologies Corp.
Printed April 2002
Samson Technologies Corp.
575 Underhill Blvd.
P.O. Box 9031
Syosset, NY 11791-9031
Phone: 1-800-3-SAMSON (1-800-372-6766)
Fax: 516-364-3888
www.samsontech.com
S direct Front and Rear Panel Layout
www.samsontech.com
LEVEL
GTR/SPK
DESIGNED AND ENGINEERED IN TH
E
UNITED STATES BY SAMSON TECHNOLOGIES
OUTPUT/LINKINPUT
SD100
1
2
3
GND LIFT
BALANCED OUTPUT
PIN 1 GND
PIN 2 HOT
PIN 3 COLD
BATTERY
MADE IN CHINA
BATTER
Y
PHANTOM
4 5 6 7
1 INPUT
- 1/4” input connector.
2 LEVEL
- When engaged, the level
is switched from instrument GTR to
amplifier speaker SPR level.
3 OUTPUT/LINK
- 1/4” output for pass-
ing the input signal through to a stage
amplifier or monitor system.
4 BATTERY COMPARTMENT
- Houses
5 GROUND LIFT
- When engaged, the
ground from the S direct chassis
detaches from the XLR jack
.
6 BALANCED OUTPUT
- Male XLR
connector.
7 BATTERY/PHANTOM
- Switches S
direct from phantom power to bat-
tery operation.
3
Powering S direct
The S direct can operate on a single 9 Volt battery or standard 24-48 volt phantom
power. Whenever phantom power is present on the XLR cable that is connected to
the Balanced Output, the S direct will automatically switch to phantom power and
disconnect the 9 Volt battery. The Phantom/Battery switch can be used to turn off the
battery power when the unit is not in use.
Operating the S direct
A direct box, or DI box, provides the facility for the direct insertion of an audio signal
into a mixer or recorder. The S direct offers a variety of DI solutions for live sound
and recording applications. You can connect all kinds of audio signals like guitars,
keyboards, outboard signal processors and even the high-powered speaker output
from an amplifier. The S direct enables you to tap off the signal from a guitar or bass
guitar and pass the signal from the Link output to the on stage amplifier without
affecting the original sound. This can eliminate the need for micing the guitar amplifi-
er, which in many cases is preferable, especially with bass guitar. The S direct is also
very useful for connecting unbalanced signals from sources like signal DJ and sub-
mixers, effects processors and keyboards to a main PA or recording mixer. Unlike
passive direct boxes, the S direct is active (has a power supply), so you can rely on
an even frequency response on any audio signal you connect to regardless of its
output impedance. Also, the S directʼs balanced output provides a clean signal at a
low level so long runs of cable are possible. Another benefit from a balanced con-
nection is Common Mode Rejection, which provides cancellation of the bad sounds
(hums and buzzes) while leaving the original signal pure.
Direct Insertion of an Instrument into a PA System
One of the most common applications for using a DI box is getting the signal of a
bass guitar into the PA system. Simply put, the low frequencies produced by bass
are difficult to mic, so use of a DI box is almost always preferable. In addition, the
signal going to PA system can be tweaked by the FOH (front of house) engineer,
without affecting the sound the musician dials up on stage. You can use S direct to
plug a guitar directly into the PA system as well, especially acoustic guitars with pick-
ups and when using electronic guitar processors and modelers. Follow the diagram
and steps below to connect a guitar to a PA mixer.
• Connect the output of the guitar or bass to the S directʼs INPUT.
• Connect S directʼs OUTPUT/LINK to the input of the guitar or bass amplifier.
• Connect S directʼs BALANCED OUTPUT to the input of main PA mixer.
4
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
-26
60
+26
GAIN
CLIP
30
5
-26
60
+26
GAIN
CLIP
30
5
-26
60
+26
GAIN
CLIP
30
5
-26
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
Typical Instrument Hook-up
Mixer
5
Operating the S direct
Connecting to High Power Signals
The S direct provides the capability of tapping off the signals from amplifiers, such as the
output of a guitar amp or power amplifier. You can even use S direct to connect to the
speaker output of a consumer stereo system or boom box, for example, if you want to
sample some old records or cassette tapes.
NOTE:
Be sure that the LEVEL switch is set to the AMP position before connecting the sig-
nal from the output of any amplifier.
Follow the diagram and steps below to connect a powered output of a guitar amplifier to a
PA mixer.
• Connect the output of the guitar or bass to the guitar amp input.
• Set the Level switch to the SPK position.
• Using unshielded speaker cable, connect the guitar ampʼs speaker output to the S
directʼs INPUT.
• Using another unshielded speaker cable, connect S directʼs OUTPUT/LINK to the
input of the guitar amplifiers speaker.
• Connect S directʼs BALANCED OUTPUT to the input of main PA mixer.
NOTE:
To avoid
annoying pops
and clicks be sure
to mute (or turn
down the volume
control) of your
mixerʼs output
while connecting
the S direct, or
when switching
from battery to
phantom power.
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.
Frequency Response 5-35 kHz, -3 dB
Noise Level (22-22kHz, Input Shorted) -104 dBu
THD + N (10 Hz -22 kHz) 0.013% typ. @ 1 VRMS,1 kHz.
Input Impedance (GTR) > 1 Meg. Ohm
(SPK) 10 k Ohm
Max. Input Level (1% THD) +8.1 dBu ( 9v. Batt.)
+11.3 dBu (48v. Phantom)
GTR/SPK Input 1/4
ʺ
Phone Jack, unbalanced
OUTPUT/LINK 1/4
ʺ
Phone Jack, unbalanced
BALANCED OUTPUT XLR Connector, balanced
Phantom Power 24-48 VDC
Battery 9 Volt
Dimensions 5.6
ʺ
W x 4
ʺ
D x 2
ʺ
H
142mm W x 101.6mm D x 50.8mm H
Weight 15 oz.
.43 Kg
S direct Specifications
7
Samson Technologies Corp.
575 Underhill Blvd.
P.O. Box 9031
Syosset, NY 11791-9031
Phone: 1-800-3-SAMSON (1-800-372-6766)
Fax: 516-364-3888
www.samsontech.com
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Samson S-direct Direct Box User manual

S-direct Direct Box
Samson
Brand
Samson
Model
S-direct Direct Box
Category
Supplementary music equipment
Type
User manual
This manual is also suitable for

Samson S-direct Direct Box is a versatile tool for connecting musical instruments and other audio sources to mixers and PA systems. It features an input for connecting a guitar or bass, a level switch for matching the output to the input of an amplifier or mixer, and a balanced XLR output for sending the signal to a PA system. The S-direct also has a ground lift switch to eliminate ground loops, a battery/phantom power switch for powering the unit, and an output/link jack for sending the signal to an amplifier or monitor system.

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