GND LIFT

BALANCED OUTPUT

PIN 1 GNDPIN 2 HOTPIN 3 COLD

BA

TTER

Y

MADE IN CHINA

BATTERY

PHANTOM

Direct Insertion Box

www.samsontech.com

LEVEL

GTR/SPK

DESIGNED AND ENGINEERED IN THEUNITED STATES BY SAMSON TECHNOLOGIES

OUTPUT/LINKINPUT

SD100

--

Table Of Contents

Front and Rear Panel Layout 3Powering S direct 3Operating the S direct Direct insertion of an instrument into a PA system 4 High power signals 5 Converting the output of unbalanced devices 6

Specifications 7

K-TEAMA

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 9031Syosset, NY 11791-9031Phone: 1-800-3-SAMSON (1-800-372-6766)Fax: 516-364-3888www.samsontech.com

S direct Front and Rear Panel Layout

www.samsontech.com

LEVEL

GTR/SPK

DESIGNED AND ENGINEERED IN THEUNITED STATES BY SAMSON TECHNOLOGIES

OUTPUT/LINKINPUT

SD100

1 2 3

GND LIFT

BALANCED OUTPUT

PIN 1 GNDPIN 2 HOTPIN 3 COLD

BA

TTER

Y

MADE IN CHINA

BATTERY

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 SystemOne 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 THEUNITED STATES BY SAMSON TECHNOLOGIES

OUTPUT/LINKINPUT

SD100

2T IN 2T OUT

2T TO MIX

CR MIX

MONO OUT

C/ROOM+PHONES

5

MIX/2T

RIGHT RIGHTAUX 2 OUT

LEFT RIGHT LEFT RIGHT

MONO OUTAUX 1 OUT LEFT LEFT

5

0 10

0 10

L RMIXPHONESCHANNEL 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

HF12K

MF2.5K

15

1010

5

15

5

0LF

80Hz

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L R

AUX 1MON

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HF12K

MF2.5K

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1010

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R

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L R

AUX 1MON

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AUX 2DSP

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HF12K

MF2.5K

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1010

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80Hz

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MF2.5K

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1010

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80Hz

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AUX 1MON

AUX 2DSP

HF12K

MF2.5K

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1010

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80Hz

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1010

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5

BAL

L R

AUX 1MON

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PAN

R

AUX 1MON

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MASTER SECTION

MASTER SECTION

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GAINCLIP

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GAINCLIP

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GAINCLIP

30

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GAINCLIP

REC REC REC REC REC REC

MIC/LINE 1 MIC/LINE 3

DIGITAL EFFECTSDSPB

IT24 DSP TO MON

SELECT

POWER+48V

PEAK

+6

0

-6

-12

-20

1 LARGE HALL2 MEDIUM HALL3 LARGE ROOM4 VOCAL RM.5 VOCAL RM. 26 CHORUS+REVERB7 CHORUS+DELAY8 STAIRWELL

DSP

PEAK

AUXRET 1

AUX/DSPRET 2

5

0 105

5

0 105

0 10

1

2

3 6

7

54

8

HARD

DISK

MO

DE

o

Transient Attack

POWER

MODEL 3500 350 WATTS

INPUT PRE AMP CONTOUR MASTER

03

5

10

15-18

3

5

10

15+18

03

5

10

15-18

3

5

10

15+18

LOW PASS HIGH PASS

54

3

2

10

6

7

8

910

VOLUME

PASSIVE

COMPRESSION

54

3

2

10

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8

9

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2

10

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7

8

910

54

3

2

10

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7

8

910

+15+12+9+6+3+2

0-2-3-6-9

-12-15

+15

0

-15

8KHz5KHz3KHz2KHz1KHz500Hz250Hz125Hz64Hz30Hz

8KHz5KHz3KHz2KHz1KHz500Hz250Hz125Hz64Hz30Hz

GRAPHIC EQUALIZER

IN

OUT

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 THEUNITED STATES BY SAMSON TECHNOLOGIES

OUTPUT/LINKINPUT

SD100

2T IN 2T OUT

2T TO MIX

CR MIX

MONO OUT

C/ROOM

+PHONES5

MIX/2T

RIGHT RIGHTAUX 2 OUT

LEFT RIGHT LEFT RIGHT

MONO OUTAUX 1 OUT LEFT LEFT

5

0 10

0 10

L RMIXPHONESCHANNEL 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

0LF

80Hz

0

15

10

5

15

5

0

0

15

1010

55

15

LO CUT

PAN

L R

AUX 1

MON

5

0 10

AUX 2

DSP

5

0 10

L

HF

12K

MF

2.5K

15

1010

5

15

5

0LF

80Hz

0

15

10

5

15

5

0

0

15

1010

55

15

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12K

MF

2.5K

15

1010

5

15

5

0LF

80Hz

0

15

10

5

15

5

0

0

15

1010

55

15

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PAN

R

AUX 1

MON

5

0 10

AUX 2

DSP

5

0 10

PAN

L R

AUX 1

MON

5

0 10

AUX 2

DSP

5

0 10

L

HF

12K

MF

2.5K

15

1010

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80Hz

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12K

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2.5K

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1010

55

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AUX 1

MON

AUX 2

DSP

HF

12K

MF

2.5K

15

1010

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5

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80Hz

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1010

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L R

AUX 1

MON

5

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55

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DSP

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R

AUX 1

MON

5

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DSP

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L R

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DIGITAL EFFECTS

MASTER SECTION

MASTER SECTION

5

0 10

M A X I M U M D Y N A M I C R A N G E

30

5 -26 60 +26

GAINCLIP

30

5 -26 60 +26

GAINCLIP

30

5 -26 60 +26

GAINCLIP

30

5 -26 60 +26

GAINCLIP

REC REC REC REC REC REC

MIC/LINE 1 MIC/LINE 3

DIGITAL EFFECTSDSPB

IT24 DSP TO MON

SELECT

POWER+48V

PEAK

+6

0

-6

-12

-20

1 LARGE HALL2 MEDIUM HALL3 LARGE ROOM4 VOCAL RM.5 VOCAL RM. 26 CHORUS+REVERB7 CHORUS+DELAY8 STAIRWELL

DSP

PEAK

AUX

RET 1

AUX/DSP

RET 2

5

0 105

5

0 105

0 10

1

2

3 6

7

54

8

HARD

DISK

MO

DE

SIGNAL FLOW

SIGNAL FLOW

Balanced Outputs (opposite panel)

On Stage Keyboard Monitors

Input

Link Output

Main PAMixer

Link OutputTypical Stereo Keyboard

Hook-up

Keyboard StereoOutput

www.samsontech.com

LEVEL

GTR/SPK

DESIGNED AND ENGINEERED IN THEUNITED STATES BY SAMSON TECHNOLOGIES

OUTPUT/LINKINPUT

SD100

SIGNAL FLOW

Input

SIGNAL FLOW

www.samsontech.com

LEVEL

GTR/SPK

DESIGNED AND ENGINEERED IN THEUNITED STATES BY SAMSON TECHNOLOGIES

OUTPUT/LINKINPUT

SD100

2T IN 2T OUT

2T TO MIX

CR MIX

MONO OUT

C/ROOM+PHONES

5

MIX/2T

RIGHT RIGHTAUX 2 OUT

LEFT RIGHT LEFT RIGHT

MONO OUTAUX 1 OUT LEFT LEFT

5

0 10

0 10

L RMIXPHONESCHANNEL 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

HF12K

MF2.5K

15

1010

5

15

5

0LF

80Hz

0

15

10

5

15

5

0

0

15

1010

55

15

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PAN

L R

AUX 1MON

5

0 10

AUX 2DSP

5

0 10

L

HF12K

MF2.5K

15

1010

5

15

5

0LF

80Hz

0

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10

5

15

5

0

0

15

1010

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15

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MF2.5K

15

1010

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15

5

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80Hz

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R

AUX 1MON

5

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AUX 2DSP

5

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L R

AUX 1MON

5

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AUX 2DSP

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L

HF12K

MF2.5K

15

1010

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80Hz

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AUX 2DSP

HF12K

MF2.5K

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L R

AUX 1MON

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R

AUX 1MON

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DIGITAL EFFECTS

MASTER SECTION

MASTER SECTION

5

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GAINCLIP

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GAINCLIP

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GAINCLIP

30

5 -26 60 +26

GAINCLIP

REC REC REC REC REC REC

MIC/LINE 1 MIC/LINE 3

DIGITAL EFFECTSDSPBI

T24 DSP TO MON

SELECT

POWER+48V

PEAK

+6

0

-6

-12

-20

1 LARGE HALL2 MEDIUM HALL3 LARGE ROOM4 VOCAL RM.5 VOCAL RM. 26 CHORUS+REVERB7 CHORUS+DELAY8 STAIRWELL

DSP

PEAK

AUXRET 1

AUX/DSPRET 2

5

0 105

5

0 105

0 10

1

2

3 6

7

54

8

HARD

DISK

MO

DE

o

Transient Attack

POWER

MODEL 3500 350 WATTS

INPUT PRE AMP CONTOUR MASTER

03

5

10

15-18

3

5

10

15+18

03

5

10

15-18

3

5

10

15+18

LOW PASS HIGH PASS

54

3

2

10

6

7

8

910

VOLUME

PASSIVE

COMPRESSION

54

3

2

10

6

7

8

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54

3

2

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7

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910

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2

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910

+15+12+9+6+3+2

0-2-3-6-9

-12-15

+15

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8KHz5KHz3KHz2KHz1KHz500Hz250Hz125Hz64Hz30Hz

8KHz5KHz3KHz2KHz1KHz500Hz250Hz125Hz64Hz30Hz

GRAPHIC EQUALIZER

IN

OUT

A B

TUBE SOLID STATE

ACTIVE

SIGNAL FLOW

SIGNAL FLOW

Balanced Output (opposite panel)

Amplifier

Input

Link Output

PA Mixer

Amp SpeakerOutput

Amp SpeakerInput

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 dBNoise Level (22-22kHz, Input Shorted) -104 dBuTHD + N (10 Hz -22 kHz) 0.013% typ. @ 1 VRMS,1 kHz.Input Impedance (GTR) > 1 Meg. Ohm (SPK) 10 k OhmMax. Input Level (1% THD) +8.1 dBu ( 9v. Batt.) +11.3 dBu (48v. Phantom)GTR/SPK Input 1/4ʺ Phone Jack, unbalancedOUTPUT/LINK 1/4ʺ Phone Jack, unbalancedBALANCED OUTPUT XLR Connector, balancedPhantom Power 24-48 VDCBattery 9 VoltDimensions 5.6ʺ W x 4ʺ D x 2ʺ H 142mm W x 101.6mm D x 50.8mm HWeight 15 oz. .43 Kg

S direct Specifications

7

Samson Technologies Corp.575 Underhill Blvd.

P.O. Box 9031Syosset, NY 11791-9031

Phone: 1-800-3-SAMSON (1-800-372-6766)Fax: 516-364-3888

www.samsontech.com