Samson S4000 Owner's Manual
1000W STEREO POWERED MIXER
OWNER'S MANUAL
Owner's Manual
Copyright 2014
v1.2
Samson Technologies Corp.
45 Gilpin Avenue
Hauppauge, New York 11788-8816
Phone: 1-800-3-SAMSON (1-800-372-6766)
Fax: 631-784-2201
www.samsontech.com
FCC Notice
1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause un-
desired operation.
2. Changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
If you want to dispose this product, do not mix it with general household waste. There is a separate collection system for used electronic products in accordance with legislation that requires proper treatment,
recovery and recycling.
Private household in the 28 member states of the EU, in Switzerland and Norway may return their used electronic
products free of charge to designated collection facilities or to a retailer (if you purchase a similar new one).
For Countries not mentioned above, please contact your local authorities for a correct method of disposal.
By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery and recycling
and thus prevent potential negative effects on the environment and human health.
Important Safety Information
This lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert the user to the presence of noninsulated “dangerous voltage” within the product’s enclosure
that may be of sufficient magnitude to constitute a risk of
electric shock.
AVIS
RISQUE DE CHOC ÉLECTRONIQUE -
NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK) AS THERE ARE NO USER-
SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The exclamation point within an equilateral triangle is intended
to alert the user to the presence of important operating and
maintenance instructions in the literature accompanying the
appliance.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. In-
stall in accordance with the manufacturer’s
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 po-
larized 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 the third prong are provided for
your safety. If the provided plug does not fit
into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked
on or pinched particularly at the plugs,
convenience receptacles, and at the point
where they exit from the apparatus.
11. Only use attachments/accessories specified
by the manufacturer.
12. Use only with the cart, stand,
tripod, bracket, or table specified by the manufacturer, or
sold with the apparatus. When a cart is
used, use caution when moving the cart/
apparatus combination to avoid injury from
tip-over.
13. Unplug the apparatus during lightening
storms or when unused for long periods of
time.
14. Refer all servicing to qualified personnel.
Service is required when the apparatus has
been damaged in any way, such as power
supply cord or plug is damaged, liquid has
been spilled or objects have fallen into
the apparatus has been exposed to rain or
moisture, does not operate normally, or has
been dropped.
15. This appliance shall not be exposed to dripping or splashing water and that no object
filled with liquid such as vases shall be
placed on the apparatus.
16. Caution-to prevent electrical shock, match
wide blade plug wide slot fully insert.
17. Please keep a good ventilation environment
around the entire unit.
18. To prevent injury, this apparatus must be
securely attached to the stand in accordance with the installation instructions.
19. WARNING: The battery (battery or batteries
or battery pack) shall not be exposed to
excessive heat such as sunshine, fire or the
like.
20. CAUTION: Danger of explosion if battery is
incorrectly replaced. Replace only with the
same or equivalent type.
4
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
S4000 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Adding Digital Effects. . . . . . . . . . . . . . . . . . . . . . 9
Sending a Mix to Monitor Speakers . . . . . . . . . . . . . . . 10
Connecting a Subwoofer . . . . . . . . . . . . . . . . . . . . 11
MP3 Player/Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Latching Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Controls and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mono Input Channel Section . . . . . . . . . . . . . . . . . . 15
Stereo Input Channel Section . . . . . . . . . . . . . . . . . . 17
Digital Effects Section . . . . . . . . . . . . . . . . . . . . . 19
Stereo Line Inputs . . . . . . . . . . . . . . . . . . . . . . . 20
Master Auxiliary Send Section . . . . . . . . . . . . . . . . . . 20
PHONES and CD/TAPE MP3 IN Section . . . . . . . . . . . . . 21
MONO/SUBWOOFER Output Section . . . . . . . . . . . . . . 21
Main Output Section . . . . . . . . . . . . . . . . . . . . . . 22
Power Amp Section . . . . . . . . . . . . . . . . . . . . . . . 23
Graphic Equalizer Section. . . . . . . . . . . . . . . . . . . . 24
Input and Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Channel 1-12 Mono Mic/Line Inputs. . . . . . . . . . . . . . . 25
Channel 13-20 Stereo Input Channels . . . . . . . . . . . . . 25
CD/TAPE IN and RECORD OUT . . . . . . . . . . . . . . . . . 25
Master Input and Output Section . . . . . . . . . . . . . . . . 26
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . 27
Speaker Connections . . . . . . . . . . . . . . . . . . . . . . 27
Wiring Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
S4000 • Powered Mixer
5
Introduction
Congratulations on your purchase of the Samson S4000 powered mixer! The S4000 is a 20-channel, powered mixer in a tabletop enclosure. The mixer features a massive 2 x 500-watt stereo power
amplifier section and an integrated USB flash MP3 player/recorder.
To set the overall tonal response of your mix, the S4000 mixer features a nine-band Stereo Graphic
Equalizer for the Main Left and Right outputs, plus a separate Nine-band Graphic Equalizer for
your monitor mix. Connecting all your microphones and instruments is simple, with twelve mic/line
inputs plus four additional stereo channels.
To add depth to mix, you can add one of the mixer's 100 dazzling digital studio quality effects,
which include Delays, Chorus, Flanging, and of course, lush Reverbs to your vocals or instruments
using the onboard 24-bit Multi-Effects Processor. It’s easy to dial up your favorite effects preset
with the large seven-segment LED display. The mixer has extensive auxiliary buses allowing you
to have complex combinations of effects on all the channels, or two different effects on different
groups of channels. The auxiliary buses are also extremely flexible when it comes to monitor mixes.
The S4000 will give you clean, clear sound reproduction thanks to the high quality, low noise
microphone preamps, super clean, low impedance mix bus, and the high output/low distortion
power amplifier. The mixer is easy to transport with thanks to the oversized, sure-grip handle. The
S4000 includes a removable metal cover for added protection when transported and stored.
The super-tough steel construction ensures reliable, high quality sound from venue-to-venue and
performance-to-performance day in, and night out. The mixer is perfect for live sound reinforcement
and commercial installations, the S4000 is the ideal mixer and power amp solution that offer plenty of inputs, sweet sounding effects and big sound in a compact package.
We recommend you record your serial number in the space provided below for future reference.
Serial number: _________________________
Date of purchase: _______________________
With proper care and maintenance, your S4000 will operate trouble-free for many years. Should
your speaker ever require servicing, a Return Authorization (RA) number 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 an RA number prior to shipping your unit.
Please retain the original packing materials and, if possible, return the unit in its original carton. If
your S4000 was purchased outside of the United States, contact your local distributor for warranty
details and service information.
6
S4000 Features
The Samson S4000 powered mixer is a comprehensive, all-in-one mixer/power amplifier solutions
for a variety of live sound applications. Here are some of their main features:
• Massive 2 x 500-watts Stereo power amplifier section
• Twelve mic/line inputs plus four stereo line inputs, plus dedicated stereo returns for the onboard
effects.
• Two 24-bit digital effects processors, each with 100 selectable presets of studio quality effects
on each input.
• USB flash player/recorder to play back accompaniment or background music and record the
performance.
• High-quality, low-noise microphone preamplifiers that can accept signal from most standard microphones. With the mixer’s XLR connectors, connecting standard low impedance dynamic mics
is simple, and condenser microphones are connected easily using the available 48 Volt Phantom
Power.
• Each of the mic/line channels feature a convenient Insert Point jack to patch in external effects
and a three-band Equalizer with variable mid-range control enabling you to tailor the tonal response of each input.
• Four auxiliary sends. One dedicated Aux send for monitors, plus a second Aux send that can be
set up to be either a monitor send or an effects send using the Pre/Post switch, and two additional EFX sends for sending to the dual internal multi-effects processors.
• A Stereo 9-band Graphic Equalizer for the Main left and right outputs, plus a Mono 9-band for
the Monitor output, allow the mixer to be set-up for maximum gain before feedback.
• Mono/Subwoofer Output with variable Low-pass Filter.
• The brilliant sound quality is achieved thanks to the advanced circuit design, utilizing low-noise
operational amplifiers and low impedance busing.
• Durable steel enclosure is road tough insuring reliable performance from night to night and
venue to venue.
• Oversize grip handle and latching metal cover make the unit easy to transport and store.
S4000 • Powered Mixer
7
Quick Start
Basic Setup
The following section explains the basic setup and operation of the S4000.
1. Before connecting mics or instruments, make sure that the power of all your systems compo-
nents, including the S4000 mixer, is turned off. Also, make sure that the volume and gain
controls of each channel of the S4000 and the MAIN, MONO, AUX 1 and AUX 2 level faders
are turned all the way down.
2. Make the connection to your speakers, using heavy gauge, unshielded speaker cable, from the
S4000 Speakon® or ¼" speaker outputs.
3. Connect the cables to your microphones and instruments, and insert the other end of the cable
firmly into the appropriate inputs on the S4000.
4. Switch on the power of any peripheral devices, and then power up the S4000.
NOTE: Since the S4000 contain two internal power amplifiers, it is important to remember the
Golden Rule of audio … "LAST ON, FIRST OFF". Translated, this means that when powering up
your PA system, you should always turn your power amplifiers on LAST, and when power your
system down, turn your power amps off FIRST. This helps avoid any loud pops caused by inrush current at power up or power down, which can sometimes damage loudspeakers.
5. Make sure the channel faders are all down, then set the MAIN level fader control to the unity
or “0” position.
6. Before you turn up a channel, you want to make sure you set a good level, with no distortion,
on the channel input GAIN. While speaking into the mic at performance level (or playing the
instrument), adjust the channel GAIN control so that the “PEAK” LED of the channel lights
occasionally, then back it down slightly.
7. Once you have set the GAIN control, slowly adjust the channel LEVEL fader control until the
desired level is reached.
8. If you wish to adjust the tone of each channel, adjust the equalizer controls as desired. You
may have to re-adjust the channel volume.
9. Use the MAIN STEREO GRAPHIC EQ section graphic equalizer and MASTER control to adjust
the overall volume and tone. You can increase the overall level of your system by cutting certain frequencies that cause feedback.
8
Quick Start
Adding Digital Effects
The mixer features two built-in, high quality, 24-bit Multi Effect Processors, offering 100 studio grade effects presets. The EFX section features clean Delays, lush
Reverbs and multi-effects like Chorus + Delay or Chorus + Reverb. The following
details the operation of the internal DSP effects in the EFX section:
1. Connect a mic or instrument to the desired channel, adjust the level and
equalizer to your liking and make sure the MAIN fader level is set so you can
hear it in your speakers.
2. Press the EFX ON button to activate the digital effects channel strip.
3. Select the desired EFX program using the SELECT control knob located in the
middle of the EFX channel strip. Set the DSP SELECT switch to one of the
100 effects.
Note: Check the EFX Program List to find the effect perfect for your performance.
4. Set the EFX RTN fader control to the "0", unity position. The EFX RTN adjusts
the overall level of the digital effects to the MAIN MIX.
5. USE the EFX 1 control on each of the channels to adjust the level of signal to
sent to the effects.
6. If you want to hear the effects in the monitors, turn up the AUX1 RTN and/
or AUX2 RTN until you have the level of effects you want in those mixes. For
more information on setting up a monitor mix, see the following section.
NOTE: If the effect sound is distorted even though the EFX RTN is turned
down low, lower the EFX 1 controls of each channel.
7. Repeat the steps above for the second EFX section using the EXF 2 auxiliary
send.
S4000 • Powered Mixer
9
Quick Start
Sending a Mix to Monitor Speakers
The S4000 features two prefader auxiliary buses to create additional mixes of the input channels.
Follow these simple steps to set up an independent stage monitor mix.
1. Connect the AUX 1 Output to the input
of your monitor power amplifier. Connect
your amplifier to your monitor speakers
according the amplifier operating instructions.
2. Make sure that the AUX 1 Send level fader
is all the way down.
3. Raise the AUX 1 controls for the
channels that you wish to hear
from the monitor speakers.
NOTE: The monitor controls are
not affected by the level (fader) settings of each channel. This allows
you to create a mix for the monitor that is
independent of the MAIN mix.
SX 1800
400 W
600 W
1+ 1-
1+2+
2+ 2-
E251753
23FY
1+ 1-
115V 60Hz, 1900W
4. Now raise the AUX 1 Send fader up until
you get a good level. If feedback occurs,
back down on the AUX 1 Send fader.
5. You can use the MONITOR GRAPHIC
EQUALIZER to cut the frequencies that
cause feedback. Setting the equalizer to
get the most gain before feedback requires
a good ear, but mostly, a lot of painful
experience. If you are just starting out use
the standard “smile” EQ curve where the
mids are cut down and the lows and high
are slightly boosted.
6. Use the graphic equalizer and AUX 1 Send fader level control in combination to adjust the overall volume and tone.
7. For a second monitor mix, repeat the steps above for using the AUX 2 monitor bus.
10
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