Soundigital EVOX2 1200.4 User manual

OWNER´S MANUAL
1200.4

Introduction ............................................................................................................................................................ 3
Package contents .............................................................................................................................................. 3
Safety instructions.............................................................................................................................................. 4
Technologies
®
DTM ................................................................................................................................................. 5
I-Power Supply ........................................................................................................................... 5
Vibration Absorption System ............................................................................................ 6
Reduced size ............................................................................................................................. 6
Assembling and disassembling the plastic cover.......................................................................... 7
Panels description
Audio inputs and controls................................................................................................... 8
Power inputs and audio outputs ..................................................................................... 9
Installation sequence..................................................................................................................................... 10
Electrical dimensioning ................................................................................................................................. 11
Audio inputs
RCA inputs................................................................................................................................. 11
High Level inputs .................................................................................................................... 11
Crossovers set up........................................................................................................................................... 12
Wiring diagram
Four channels wiring diagram....................................................................................... 13
Three channels wiring diagram .................................................................................... 13
Two channel wiring diagram........................................................................................... 14
Gain Setting ......................................................................................................................................................... 14
Battery connection diagram...................................................................................................................... 15
Technical specifications
Parameters ............................................................................................................................... 16
Dimensional data .................................................................................................................. 16
Additional Information ................................................................................................................................... 16
Document revision code: 1000750275-003/APR2023

INTRODUCTION
3
PACKAGE CONTENTS
▪ 01 1200.4 EVOX2 amplifier
▪ 01 Quick installation guide with warranty certificate
▪ 01 Allen wrench 2.0mm
▪ 01 Allen wrench 2.5mm
▪ 01 Allen wrench 3.0mm
▪ 02 Cables for high level input
▪ 01 Promotional sticker
INTRODUCTION
3
Dear Consumer,
Congratulations, you have just acquired a SounDigital product of the highest
technology and quality, so we thank you for your trust.
SounDigital products are made with raw materials of the highest quality
standards, and the most modern processes, equipment and technology are
used in their production.
IMPORTANT INFORMATION
On this manual you will learn about the product, its features and
characteristics, in order to obtain the best result and to be able to enjoy your
music with SounDigital quality and power.
Read this manual carefully and follow precisely all the information contained
therein, these are very important and allow your amplifier to work optimally. If you
think it is necessary, please do not hesitate to contact our technical support at the
following contact:
[e-mail]
*Merely illustrative image.

SAFETY INSTRUCTIONS
4
THIS "WARNING" SIGN ALERTS THE USER OF IMPORTANT INFO. NOT FOLLOWING
THESE INSTRUCTIONS MAY CAUSE INJURIES TO THE USER OR DAMAGE TO THE
EQUIPMENT.
Warning!
To avoid injury to the user or damage to the amplifier, read all safety instructions
written on this manual.
Before proceeding with the
installation of any electric
equipment on your vehicle,
u n p l u g t h e n e g a t i v e ( - )
terminal of the battery to avoid
fires, injuries or damages;
Use your sound system safely.
The continuous exposure to
sound pressures over 85dB
m a y c a u s e i r r e v e r s i b l e
hearing damage;
This equipment is for use in
a u t o m o t i v e D C v o l t a g e
batteries between 12.6 and
14.4 volts. Before installing the
equipment, check voltage of
the batteries;
Do not install the amplifier in
places exposed to water, dirt
or humidity;
Choose a ventilated place to
install the amplifier and avoid
blocking the side ventilation
windows;
Fix the amplifier properly and
firmly. Avoid fixing to metallic
parts of the vehicle, as this
procedure may cause ground
looping (noise);
When passing cables through
metallic walls, use rubber
O-rings to avoid cable cutting
and short-circuits;
Make sure that the chosen
locati on for th e am plifier
installation does not affect the
operation of the vehicle;
T h is p ro d u c t m a y r e ac h
t e m p e r a t u r e s o v e r 6 0 ° C
(140°F). Make sure it is cold
before touching it;
Clean the amplifier periodically
with brush or dry cloth to
assure the thermal efficiency
of the heatsink;
Be careful when making holes
in the vehicle. Make sure you
are not making holes in the
fu e l ta nk, b r ake li ne s or
electrical cables of the vehicle;
Make sure the cables are
properly secured throughout
the installation;
Wear gloves, safety glasses
and all necessary PPE during
the installation of SounDigital
amplifiers.
X XX
X XX
The installation of this product
must be done by a qualified
professional. In case of any
doubt, please contact our
technical support;

5
TECHNOLOGIES
The DTM* is a dynamic thermal recovery system which always maintains a high efficiency
of the amplifier by accelerating the thermal exchange of electronic components with the
heatsink.
*Patent required.
ALUMINIUM
HEATSINK
CONDUCTIVE
COPPER LAYER
ELECTRONIC
COMPONENT
DYNAMIC THERMAL MANAGEMENT - DTM®
An intelligent layout, with great use of the PCB area
and the use of modern components with reduced
structure guarantee SounDigital products a
compact design, at the same time robust and with
excellent thermal efficiency.
ULTRA COMPACT PCB
*Efficiency measured at power supply only.
SounDigital amplifiers are known for their low
consumption of battery, and this feature was
i m p r o v e d o n t h e E V OX 2 L i n e . T h e n e w
I-POWER SUPPLY is even more modern, which
r e p l a c e s t h e o l d t o r o i d a l t r a n s f o r m e r s
by a new generation of "E-E" core transformers
delivers efficiency above 90%*, ensuring more
hours of sound without battery recharge.
I-POWER SUPPLY

6
TECHNOLOGIES
FULL RANGE
REDUCED SIZE
The technology used in our
amplifiers bring both high
performance and power into a
compact chassis, providing
flexible installation solutions for
vehicles with limited space.
Our Technology reduces all impact
®
VAS
caused by vibration on the electronic circuit
board. This can include road vibration and
even vibration caused by sound waves,
increasing the reliability of our amplifiers.
VIBRATION ABSORPTION
®
SYSTEM - VAS
7.1"
5.4"
The 1200.4 EVOX2 amplifier is a versatile
product that cover the entire audible
frequency range, any type of loudspeaker or
music program.

7
ASSEMBLING AND DISASSEMBLING THE PLASTIC COVER
The plastic covers finish and hid the amplifier fixing screws. To are used to off e ’s
disassembl and assembl them, follow the instructions below.e e
1 2
21
DISASSEMBLING OF THE PLASTIC COVER
ASSEMBLING THE PLASTIC COVER
1. Carefully pull out the top of the plastic cover to release the upside latches, as shown in picture 1.
2. Slide up the plastic cover in a continuous movement to remove it.
1. To fit the plastic cover back, carefully insert the point A of the plastic cover into point B of the
amplifier, slowly sliding it down.
2. Gently press the sides of the top of the plastic cover towards the bottom of the amplifier until
you hear a clicking noise.
EN
B
A
*Merely illustrative images.
*Merely illustrative images.

PANELS DESCRIPTION
8
553 511 57
81 69 10 2
5
12
55513 54
Variable crossover control – 45Hz ~ 850Hz
Audio input – High Level
(To connect to the speaker output of the head unit)
Crossover Switch
High Pass – Full – Low Pass
Variable Gain control
Audio inputs – RCA connectors
2
4
6
8
10
12
1
3
5
7
9
11
CH1/CH2
CH1/CH2
CH1/CH2
CH1/CH2
CH1
CH3
CH3/CH4
CH3/CH4
CH3/CH4
CH3/CH4
CH2
CH4
"POWER ON" LED indicator
13 Blue

PANELS DESCRIPTION
9
Negative power supply connector (GND)
Remote power supply connector (REM)
Positive power supply connector (+12VDC)
Positive speaker connector (+)
Negative speaker connector (-)
14
15
16
18
20
22
24
17
19
21
23
CH1
-
-
-
CH3
CH4
CH2
Positive speaker connector (+)
Negative speaker connector (-)
Positive speaker connector (+)
Negative speaker connector (-)
Positive speaker connector (+)
Negative speaker connector (-)
517
24222018 141516
523521519

10
ØFix the amplifier so that the connectors can be easily accessed;
ØInstall the power cables in the vehicle properly, starting from the battery to the fuse holder
or circuit breaker, use the cable with the appropriate size. Make all connections, install fuse
holders or circuit breakers, but without placing the fuses or with the circuit breakers in the
"OFF" position;
ØConnect the power cables in to the amplifier, observing the polarity. Connect all the positive
cables from the fuse holder or circuit breaker to the positive conector of the amplifier (+)
and all the negative power cables from the batteries to the negative connector of the
amplifier;
ØThe ground cable must be as short as possible and must be connected to the vehicle
chassis and the battery negative;
ØInstall the signal input cables in a proper way, distant from the power cables;
ØConnect the RCA or the high level signal input cables to the head unit and amplifiers;
ØInstall the audio output cables with the appropriate section, distant from the power and
audio input cables;
ØConnect the audio output cables to the amplifier and speakers respecting the positive (+)
and negative (-) polarities;
ØInstall the remote cable with the power cables, using 1.5mm² (15 AWG) cable or thicker;
ØConnect the remote power cable to the amplifier's "REM" terminal at the main unit's remote
power output (when not using the high level signal inputs);
ØBefore powering the system, verify all the connections and make sure there are no
mistakes or short-circuits on the power and ground cables;
Ø;Reconnect the ground of the batteries
ØCheck if the head unit is turned off and then place the fuses in the fuse holders or switch the
circuit breakers on;
ØTurn on the main unit and the amplifier will turn on the "POWER ON" LED indicating that it is
in operation.
INSTALLATION SEQUENCE
Remove the paint
between the terminal
and chassis
THE MAXIMUM DISTANCE FOR THE INSTALLATION OF THE FUSE/CIRCUIT BREAKER
IS 12 INCHES (30cm) AWAY FROM THE BATTERY.
BEFORE PROCEEDING WITH THE INSTALLATION, UNPLUG THE NEGATIVE TERMINAL
FROM ALL OF THE BATTERIES, TO AVOID FIRE, DAMAGE TO THE AMPLIFIER AND THE
USER HIMSELF.
X XX
Minimum recommended
i n s t a l l a t i o n d i s t a n c e
between amplifiers*.
1.18in (30mm)
*For installations with more than one amplifier, second unit not included. Merely illustrative images.
Warning!
Warning!
Warning!

For proper operation of your SounDigital amplifier, you need the proper
dimensioning of the electrical system and the cables used.
The table below shows the minimum section of GND cables, +12VDC cables
and speaker output cables according to the power generated by the amplifier.
SPEAKER CABLE
GROUND CABLE (GND)
POWER CABLE (+12VDC)
1200
WRMS
16mm² (5 AWG)
2 x 2.5mm² (13 AWG)
ELECTRICAL DIMENSIONING AND AUDIO INPUTS
ELECTRICAL DIMENSIONING
11
We recommend the use of only OFC (Oxygen Free Copper) cables on the
installation of our products.
Copper-clad aluminum wire (CCAW) must not be used.
X XX
All RCA inputs must be connected for
the amplifier to work properly. If the
signal source is mono type, use "Y" cable
at the input.
RCA AND HIGH LEVEL INPUTS SHOULD NOT BE USED SIMULTANEOUSLY OR
YOU MAY DAMAGE THE AMPLIFIER.
High level input must be used when the main unit does not have RCA outputs.
When High level input is used, no remote connection is required, the amplifier
recognizes the audio signal and switches on.
If your source unit is not able to turn on the amplifier through the High level input,
the remote input should be connected normally.
High level signal
inputs
RCA inputs
AUDIO INPUTS
All High level signal inputs must be
connected for the amplifier to work
properly.

CROSSOVER SET UP
Ø Change the switch to "F" position (Full Range) - All the frequencies
will be reproduced.
Ø Change the switch to "HP" position - Set in the variable control between 45Hz
and 850Hz ("A") where you want to perform the high pass cut filter;
0dB
-3dB
5Hz 22kHz
dB
Hz
-3dB
c/2
ƒ
High
Pass
c
ƒ
High
Pass
A
0dB
-12dB
dB
Hz
Ø Change the switch to "LP" position - Set in the variable control between 45Hz
and 850Hz ("B") where you want to perform the low pass cut filter .
-3dB
0dB
-12dB
Low
Pass
B
c
ƒc*2 ƒ
Low
Pass
dB
Hz
12
"F" All the frequencies are reproduced;
"LP " Set in the variable control on Low Pass Function;
"HP " Set in the variable control on High Pass Function.

WIRING DIAGRAM
4 CHANNELS WIRING DIAGRAM
3 CHANNELS WIRING DIAGRAM
13
(BRIDGE)
(PER CHANNEL)
See "AUDIO
INPUTS" on page 11
In case of connections with
more than one battery, see the
installation diagram on .page 15
All RCA inputs must be
connected for the amplifier
to work properly. If the signal
source is a mono type, use a
"Y" cable at the input.
GND
GND
FUSE
FUSE
REMOTE
GND
GND
FUSE
FUSE
REMOTE
GND GND
In case of connections with
more than one battery, see the
installation diagram on .page 15
Minimum impedance
1200.4 EVOX2 2Ω
1200.4 EVOX2 4Ω
1Ω2Ω
2Ω4Ω
Minimum impedance
1200.4 EVOX2 2Ω
1200.4 EVOX2 4Ω
1Ω2Ω
2Ω4Ω
See "AUDIO
INPUTS" on page 11
(PER CHANNEL)
+12V
+12V
+12V
+12V
(PER CHANNEL)
All RCA inputs must be
connected for the amplifier
to work properly. If the signal
source is a mono type, use a
"Y" cable at the input.

WIRING DIAGRAM / GAIN SETTING
2 CHANNELS WIRING DIAGRAM
GAIN SETTING
Necessary equipament:
ØDigital AC voltmeter;
ØMedia with sine wave test tone 60Hz
recorded at 0db;
ØScrewdriver 1/8" ( for gain setting).
Set up procedure:
This procedure is the same for both
Ø
gain controls;
ØTurn the gain control all the way down;
ØDisconnect the output cables from the
amplifier outputs;
ØTurn off all processing (bass, treble,
loudness, EQ, etc.);
ØSet the audio player volume to 3/4 of
full volume ;
ØSet the audio player fader control to
center position (left and right fader
controls);
ØSet the crossover selector switch in "F";
Ø Use a 60 Hz sine wave;
ØConnect the AC voltmeter to the
speaker output connectors of the
amplifier. Make sure you test the
voltage at the correct connectors
(+ and –);
ØIncrease the gain control until the
target voltage is observed with the
voltmeter (see the chart below);
ØOnce you have adjusted the amplifier
to the correct voltage output, turn off
the source unit and reconnect the
speaker(s).
14
FUSE
FUSE
GND GND
GND
REMOTE
Download the tracks for set up in https://soundigitalusa.com/tracks-for-set-up/
2 / 600WΩ
4 / 600WΩ
1 / 300WΩ
2 / 300WΩ
17.3V
24.5V
34.6V
49.0V
1200.4 4Ω
1200.4 2Ω
MODEL BRIDGE / POWER
STEREO / POWER
STEREO
OUTPUT VOLTAGE
BRIDGE
OUTPUT VOLTAGE
(BRIDGE)
All RCA inputs must be connected for
the amplifier to work properly. If the
signal source is a mono type, use a
"Y" cable at the input.
In case of connections with
more than one battery, see the
installation diagram on .page 15
Minimum impedance
1200.4 EVOX2 2Ω
1200.4 EVOX2 4Ω
1Ω2Ω
2Ω4Ω
See "AUDIO
INPUTS" on page 11
+12V
+12V

1
2
BATTERY CONNECTION DIAGRAM
When necessary the association of one or more battery banks to supply the
necessary current to the amplifier, it is recommended to use batteries of the same
brand, model, and if possible the same manufacturing lot so that the system has
the maximum performance.
For an ideal energy performance, we recommend that all batteries be connected to
positive and negative busbars and the busbars connected to the amplifier, as
shown in the diagram below:
2
3
1
Battery connections without the use of a busbar,
as shown in the example below, must be avoided.
This setting decreases the efficiency of supplying
power to the system.
All cables, positive and negative,
connected from the battery to the
busbar must be the same length.
Likewise the cables connected from
the busbar to the amplifier.
15
FUSE
FUSE
FUSE
FUSE
It is mandatory to install the fuse at a
maximum distance of 12 inches from the battery.
It is mandatory to install the fuse at a
maximum distance of 12 inches from the battery.
FUSE
FUSE
BUSBAR
BUSBAR

Recommended Battery (minimum)
60Ah60Ah
TECHNICAL SPECS
Frequency Response (-3dB)
Low Pass filter (12dB/octave)
Operating Voltage
SNR
Input Sensitivity (RCA)
Current Draw (music)
Total Efficiency
Recommended Fuse* (music)
Current Draw (max.)
High Pass filter (12dB/octave)
Power RMS (Bridge) @ 4Ω**
2 x 600W2 x 396W
Power RMS (Bridge) @ 2Ω**
N/A
2 x 600W
Power RMS @ 2Ω**
4 x 300W 4 x 198W
Power RMS @ 1Ω**
N/A
4 x 300W
5Hz ~ 22kHz5Hz ~ 22kHz
8V ~ 16V8V ~ 16V
93dB90dB
0.16 ~ 2V0.16 ~ 2V
52A55A
105A110A
85%85%
200200
60A60A
45Hz ~ 850Hz45Hz ~ 850Hz
45Hz ~ 850Hz45Hz ~ 850Hz
181.1mm (7.1") 161.0mm (6.3")
136.2mm (5.4")
121.1mm (4.8")
54.8mm (2.2")
16
Power RMS @ 4Ω**
4 x 198W
4 x 131W
1.23 kg (2.71 lb)
2.00 kg 4.40 ( lb)
Net Weight
Gross Weight
1.32V ~ 14.3V 1.32V ~ 14.3V
Input Sensitivity (High Level input)
PARAMETERS
**Power at 14.4V @ 60Hz with a maximum THD of 1%.
*It is mandatory to install the fuse at a maximum distance of 12 inches from the battery.
**POWER RATING ACCORDING TO
CTA-2006 INDUSTRY STANDARDS.
1200.4
2Ω
1200.4
4Ω
16mm² / 5 AWG
2 x 2.5mm² / 13 AWG 2 x 2.5mm² / 13 AWG
16mm² / 5 AWG
Power Cable
Speaker Cable
Damping Factor (@100Hz nominal impedance)
ADDITIONAL INFORMATION
The values presented are based on measurements performed in
SounDigital's laboratories. All the equipment used in the assays, tests,
measurements and gauging of the technical parameters of SounDigital
products were calibrated in certified laboratories, thus ensuring the
performance and standard of excellence of the developed products.
The Manufacturing Process may present variations, and the electronic
components may also present changes in values in relation to their
nominal parameters. Thus, causing small differences between
measurements taken. Small variations in the values presented and
divulged by SounDigital are recognized.
The images presented in this document are representative and
merely illustrative; therefore, they do not necessarily correspond to the
actual product/model.
Updates of information made in this document will always be
published and made available for consumer consultation, free of
charge, on the brand's websites. The user is advised to search for
the manual in its latest version when necessary.
DIMENSIONAL DATA

Document revision code: 1000750275-003/APR2023