How it Works
Samson
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HEADPHONE MIXER
Owners Manual
19 pgs952.17 Kb0
Table of contents
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Samson HEADPHONE MIXER Owners Manual

S Class Signal Processors
HEADPHONE MIXER/AMP
HEADPHONE
MIXER/AMP
MASTER LEVEL dB
0
-30 -18-12-24 -6 +6 CLIP
5
AUX MAIN
MASTER VOLUME
INJECT
10OFF
CHANNEL LEVEL dB
MUTE / ON ST / 2CH
PHONES AUX IN
12
4
12
CHANNEL 1
0
44
88
12
HF
4
88
12
LF
5
0
VOLUME
LR
AUX MAIN
PAN
-30 -18-12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
10
PHONES AUX IN
CHANNEL LEVEL dB
12
4
12
CHANNEL 2
0
44
88
12
HF
4
88
12
LF
5
0
VOLUME
LR
AUX MAIN
PAN
-30 -18-12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
10
PHONES AUX IN
CHANNEL LEVEL dB
12
4
12
CHANNEL 3
0
44
88
12
HF
4
88
12
LF
AUX MAIN
5
10
0
VOLUME
LR
PAN
CHANNEL LEVEL dB
-30 -18-12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
PHONES AUX IN
12
4
12
CHANNEL 4
0
44
88
12
HF
4
88
12
LF
5
0
VOLUME
LR
AUX MAIN
PAN
POWER
10

Safety Instructions

Important Safety Instructions
1. Please read all instructions before operating the unit.
2. Keep these instructions for future reference.
3. Please heed all safety warnings.
4. Follow manufacturers instructions.
5. Do not use this unit near water or moisture.
6. Clean only with a damp cloth.
7. Do not block any of the ventilation openings. Install in accordance with the manufacturers instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or third prong is provided for your safety. When the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on and pinched particularly at plugs, convenience receptacles and at the point at which they exit from the unit.
11. Unplug this unit during lightning storms or when unused for long periods of time.
12. Refer all servicing to qualified personnel. Servicing is required when the unit has been damaged in any way, such as power supply cord or plug damage, or if liquid has been spilled or objects have fallen into the unit, the unit has been exposed to rain or moisture, does not operate normally, or has been dropped.
Caution: To reduce the hazard of electrical shock, do not remove cover or back.
No user serviceable parts inside. Please refer all ser­vicing to qualified personnel.
WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture.
The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the prod­uct.
FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE FUSE
CAUTION
ATTENTION
UTILISER UN FUSIBLE DE
RECHANGE DE MÊME TYPE
WARNING
DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE
RISQUE DE CHOC ELECTRONIQUE
AVIS
NE PAS OUVRIR
RISK OF ELECTRIC SHOCK
DO NOT OPEN
1

Table of Contents

Introduction 2
S•phone Features 3
Controls and Functions
Front Panel Layout Rear Panel Layout 4-5
Operating the S•phone
Setting Up the S•phone 6-7 S•phone Master section 7 S•phone Channels 8 Stereo and Two Channel Modes 9
S•phone Connections
Cue Mix Set-up for Multitrack Vocal Recording 10 Cue Mix Set-up for Multitrack Rhythm section Recording 11 Linking Multiple S•phones 12 Headphone Impedance and Sensitivity ratings 13
S•phone Wiring Guide 14
Specifications 15-16
Block Diagram 17
Copyright 2001, Samson Technologies Corp.
Printed May, 2001
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
2
Congratulations on purchasing the Samson S•phone Headphone Amplifier! Although this unit is designed for easy operation, we suggest you take some time out first to go through these pages so you can fully understand how we’ve implemented a number of unique features. The S•phone is a compact, high-quality device that allows you to monitor any stereo or monophon­ic source signal (balanced or unbalanced) over as many as twelve separate headphones. Providing unusually high power levels and superb audio fidelity, the S•phone is compatible with virtually all popular headphone models. Front panel controls include a Master Input Level con­trol and Stereo/2 Channel switch. Each headphone output has its own individual HIGH & LOW Frequency EQ, an Insert jack, and Level control. Special output jacks on the rear panel allows any number of S•phone units to be linked together with no loss of signal. The S•phone can be used in a wide variety of applications, including recording studios, teaching labs, broadcast environments, and for live performance. In this manual, you’ll find a more detailed description of the features of the S•phone, as well as a guided tour through the front and rear panels, step-by-step instructions for using the S•phone, a reference chart that gives impedance and sensitivity ratings for a number of popular headphone models, and full specifications. You’ll also find a warranty card enclosed—please don’t forget to fill it out and mail it so that you can receive online technical support and so we can send you updated information about other Samson products in the future.
With proper care and adequate air circulation, your S•phone will operate trouble free for many years. We recommend you record your serial number in the space provided below for future reference.
Serial number:
Date of purchase:
Should your unit ever require servicing, a Return Authorization number (RA) must be obtained before shipping your unit to Samson. Without this number, the unit will not be accepted. Please call Samson at 1-800-3SAMSON (1-800-372-6766) for a Return Authorization number prior to shipping your unit. Please retain the original packing materials and if possible, return the unit in the original carton and packing materials.

Introduction

3

S•phone Features

The Samson S•phone headphone amplifier utilizes the latest technology in gain management design. Here are some of it’s features:
• Four channel headphone mixer amplifier.
• Three headphone outputs; two rear, plus one front panel output per channel.
• Two master stereo inputs with balance control.
• Dual band equalizer on each channel.
• 5 segment LED meter on each channel plus master.
• Auxiliary input, with level control, on each channel for "More Me" mixing.
• Stereo or dual input mode and mute switches on each channel.
• Maximum output power on each channel regardless of headphone impedance.
• Three year extended warranty.
HEADPHONE
MIXER/AMP
MASTER LEVEL dB
-30 -18 -12-24 -6 +6 CLIP
AUX MAIN
INJECT
0
MASTER VOLUME
5
10OFF
CHANNEL LEVEL dB
-30 -18 -12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
PHONES AUX IN
12
4
12
CHANNEL 1
0
44
88
12
HF
4
88
12
LF
5
0
10
VOLUME
LR
AUX MAIN
PAN
CHANNEL LEVEL dB
-30 -18 -12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
PHONES AUX IN
12
4
12
CHANNEL 2
0
44
88
12
HF
4
88
12
LF
5
0
VOLUME
LR
AUX MAIN
PAN
-30 -18 -12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
10
PHONES AUX IN
CHANNEL LEVEL dB
12
4
12
CHANNEL 3
0
44
88
12
HF
4
88
12
LF
5
0
10
VOLUME
LR
AUX MAIN
PAN
CHANNEL LEVEL dB
-30 -18 -12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
PHONES AUX IN
12
4
12
CHANNEL 4
0
44
88
12
HF
4
88
12
LF
5
0
10
VOLUME
LR
AUX MAIN
PAN
POWER
4
C
4
/
E
P
1 MASTER LEVEL METER - Indicates the amount of sig-
nal being driven into the four channels from the mas­ter volume control.
2 MASTER VOLUME - Controls the level being sent to
the individual channels.
3 CHANNEL LEVEL METER - Displays the amount of
power being supplied to the channels.
4 HEADPHONE CHANNEL 2 - The same knob and
switch compliment as Channel 1 is duplicated for Channel 2.
5 HEADPHONE CHANNEL 3 - The same knob and
switch compliment is duplicated for Channel 3.
6 HEADPHONE CHANNEL 4 - The same knob and
switch compliment is duplicated for Channel 4.
7 MAIN POWER SWITCH - When turned on, activates
the S•phone.
8 RACK EARS - Used for mounting into a standard 19
inch rack.
9 MASTER INJECT - Stereo TRS front panel input for
injecting a signal into the main mix.
10 MUTE SWITCH - Used for muting the signal on the
individual channels.
A AC INLET - IEC standard AC power cable connector
with external fuse.
B CHANNEL 4 OUTPUTS - 2 rear panel headphone
outputs for Channel 4.
C CHANNEL 3 OUTPUTS - 2 rear panel headphone
outputs for Channel 3.
D CHANNEL 2 OUTPUTS - 2 rear panel headphone out-
puts for Channel 2.

Controls and Functions

REAR PANEL LAYOUT

FRONT PANEL LAYOUT

1
HEADPHONE
MIXER/AMP
9
2
MASTER LEVEL dB
-30 -18 -12-24 -6 +6 CLIP0
INJECT
3
5
10OFF
AUX MAIN
MASTER VOLUME
11
10
CHANNEL LEVEL dB
-30 -18 -12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
PHONES AUX IN
12
1413
15
16
12
4
12
4
CHANNEL 1
0
44
88
12
HF
4
88
12
LF
5
010
VOLUME
L
AUX MAIN
PAN
CHANNEL LEVEL dB
-30 -18 -12-24 -6 -3 CLIP0
MUTE / ON ST / 2CH
R
PHONES AUX IN
12
HF
4
12
CHANNEL 2
0
44
88
12
4
88
12
AUX MAIN
LF
010
L
17
5
VOLUME
PAN
-30 -2
MUTE
R
PHON
A B
MADE IN CHINA
HEADPHON
MIXER/AM
C
MINIMUM IMPEDANCE 8 OHMS MINIMUM IMPEDANCE 8 OHMS MINIMUM IMPEDANCE 8 OHMS
CHANNEL 4
OUTPUTS
CHANNEL 3
OUTPUTS
D E
CHANNEL 2
OUTPUTS
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