SounDigital 400.2 EVOX2 Channel Droppin HZ Car Audio Owner’s Manual

SounDigital 400.2 EVOX2 Channel Droppin HZ Car Audio

Product Information

Product Name: SounDigital 400.2 EVOX2
Amplifier

Document Revision Code:
1000750003-001/FEB2023

Package Contents

• 01 SounDigital 400.2 EVOX2 Amplifier
• 01 Installation quick guide with warranty card
• 01 Allen wrench 2.0mm
• 01 Cable for High-level input
• 01 Promotional sticker

Safety Instructions

Warning: This warning sign alerts the user of important information. Not following these instructions may cause injuries to the user or damage to the equipment.

Technologies:

Aluminium Heatsink: The amplifier utilizes an aluminum heatsink for the efficient thermal exchange of electronic components.

Conductive Copper Layer: The amplifier incorporates a conductive copper layer for enhanced performance.

Electronic Component: The amplifier is equipped with various electronic components for optimal functionality.

DTM (Dynamic Thermal Recovery System): The DTM system accelerates the thermal exchange between electronic components and the heatsink, ensuring high efficiency of the amplifier. (Patent required)

Ultra Compact PCB: The intelligent layout and use of modern components with reduced structure result in a compact and robust design with excellent thermal efficiency.

I-POWER SUPPLY: The amplifier features a new generation of E-E core transformers, replacing the old toroidal transformers, delivering efficiency above 90%. This ensures longer hours of sound without battery recharge. (Efficiency measured at power supply only.)

Reduced Size: The technology used in the amplifier allows for high performance and power in a compact chassis, making it suitable for vehicles with limited space.

Full Range: The amplifier is designed to cover the entire audible frequency range, making it compatible with any type of loudspeaker or music program.

Assembling and Disassembling the Plastic Cover

The plastic covers serve the purpose of finishing and hiding the amplifier fixing screws. Follow the instructions below to disassemble and assemble them:

Disassembling of 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.

Assembling the Plastic Cover

1. To fit the plastic cover back, carefully insert 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.

Panels Description

INTRODUCTION

DEAR CUSTOMER,
CONGRATULATIONS ON ACQUIRING A PRODUCT WITH THE HIGHEST QUALITY AND TECHNOLOGY!
You have just purchased a SounDigital product of the highest technology and quality, so we thank you for your confidence.

Class D Amplifiers

Class D amplifiers have as main characteristics the audio quality, efficiency, application versatility and compact design. Following are the advantages of these features:

Audio Quality

In the past, Class D products had limited response and for higher frequencies, Class AB products performed better, but their efficiency was very low. The new technologies introduced by SounDigital resulted in a Class D amplifier with high efficiency and superior Class AB performance.

Efficiency

SounDigital Class D amplifiers have total efficiency (output + power source) greater than 70%, which guarantees lower battery consumption and less heating

Application Versatility

The flat full-frequency response of SounDigital amplifiers allows them to be used in all car sound systems. Meeting the demands with extreme quality.
Compact Design – The high efficiency and high technology applied, allows SounDigital amplifiers to be very compact, facilitating installation in vehicles where space is limited.

IMPORTANT INFORMATIONS

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. To better understand and take advantage of all the functions of the product and use it safely, read this manual carefully and if you have any questions, consult our support by email info@soundigitalusa.com.

PACKAGE CONTENTS

• 1 400.2 EVOX2 Amplifier
• 1 Installation quick guide with warranty card
• 1 Allen wrench 2.0mm
• 1 Cable for High level input
• 1 Promotional sticker

SAFETY INSTRUCTIONS

To prevent injuries to the user or damage to the amplifier, read all safety instructions written on this manual; If you are insecure about the installation of this equipment, get in touch with our tech support or with a professional specialized in car audio installation; Before proceeding with the installation of any electric equipment on your vehicle, unplug the negative (-) terminal of the battery to avoid fires, injuries or damages; Use your sound system safely. The continuous exposure to sound pressures over 85dB may cause irreversible hearing damage; This equipment is for use in automotive DC voltage 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; Mount the amplifier in a secure way. Avoid mounting it on metallic parts of the vehicle, because it 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 location chosen for the amplifier installation does not effect the operation of the vehicle; This product may reach temperatures over 60°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 fuel tank, brake lines or electrical cables of the vehicle; Make sure the cables are properly secured  hroughout the installation   Wear gloves, safety glasses and all necessary PPE during the installation of SounDigital amplifiers.

Warning

THIS “WARNING” SIGN ALERTS THE USER OF IMPORTANT INFO. NOT FOLLOWING THESE INSTRUCTIONS MAY CAUSE INJURIES TO THE USER OR DAMAGE TO THE EQUIPMENT.

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.

ULTRA COMPACT PCB

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.

POWER SUPPLY

SounDigital amplifiers are known for their low consumption of battery, and this feature was improved on the EVOX2 Line. The new The new 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 me r s by a new generation of “E-E” core transformers delivers efficiency above 90%, ensuring more hours of sound without battery recharge.
Efficiency measured at power supply only.

VIBRATION ABSORPTION  DEVICE – VAD

Our Technology reduces all impact ® VAD 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

REDUCED SIZE

The technology used in our amplifiers bring both high performance and power a compact chassis, providing flexible installation solutions for vehicles with limited space

FULL RANGE

Versatile products that cover the entire audible frequency range, any type of loudspeaker or music program

ASSEMBLING AND DISASSEMBLING THE PLASTIC COVER

The plastic covers have the function of finishing and hiding the amplifier fixing screws. To disassembling and assembling them, follow the instructions below.

DISASSEMBLING OF THE PLASTIC COVER

PANELS DESCRIPTION

INSTALLATION SEQUENCEELECTRICAL DIMENSIONING AND AUDIO INPUTS

Warning

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.

• Mount the amplifier in such a way you have access to the connectors;
• Install 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;

Warning

THE MAXIMUM DISTANCE FOR THE INSTALLATION OF THE FUSE/CIRCUIT BREAKER IS 12 INCHES (30cm) AWAY FROM THE BATTERY.

• Connect 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;
• The ground cable must be as short as possible and must be connected to the vehicle chassis and the battery negative;

• Install the signal input cables in a proper way, distant from the power cables;
• Connect the RCA or the high level signal input cables to the head unit and amplifiers;
• Install the audio output cables with the appropriate section, distant from the power and audio input cables;
• Connect the audio output cables to the amplifier and speakers respecting the positive (+) and negative (-) polarities;
• Install the remote cable with the power cables, using 1.5mm² (15 AWG) cable or thicker;
• Connect 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);
• Before powering the system, verify all the connections and make sure there are no mistakes or short-circuits on the power and ground cables;
• Reconnect the ground of the batteries;
•  Check if the head unit is turned off and then place the fuses in the fuse holders or switch the circuit breakers on;
• Turn on the main unit and the amplifier will turn on the “POWER ON” LED indicating that it is in operation.

Warning

Minimum recommended installation distance between amplifiers*. 1.18in (30mm)

ELECTRICAL DIMENSIONING AND AUDIO INPUTS

ELECTRICAL DIMENSIONING

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.

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.

AUDIO INPUTS RCA inputs

High level signal inputs

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.

RCA AND HIGH LEVEL INPUTS SHOULD NOT BE USED SIMULTANEOUSLY OR YOU MAY DAMAGE THE AMPLIFIER.GAIN SETTING

GAIN SETTING

GAIN SETTING Necessary equipament

• Digital AC voltmeter;
• Media with sine wave test tone 60Hz recorded at 0db;
• 1/8″ screwdriver (for gain setting).

Set up procedure

• Turn the gain control all the way down;
• Disconnect the output cables from the amplifier outputs;
• Turn off all processing (bass, treble, loudness, EQ, etc.);
• Set the audio player volume to 3/4 of full volume;
• On the audio player, set the fader control to center position;
• Set the crossover selector switch in “F”;
• Use a 60Hz sine wave;
• Connect the AC voltmeter to the speaker output connectors of the amplifier. Make sure you test the voltage at the correct connectors (+ and –);
• Increase the gain control until the target voltage is observed with the voltmeter (see the chart below);
• Once you have adjusted the amplifier to its correct voltage output, turn off the source unit and reconnect the speaker(s).

Download the tracks for set up in https://soundigitalusa.com/tracks-for-set-up/

CROSSOVER SET UP

• Change the switch to “F” position (Full Range) – All the frequencies will be reproduced.
• 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;
• 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.

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:

WIRING DIAGRAM

CHANNELS WIRING DIAGRAM

CHANNEL WIRING DIAGRAM

TECHNICAL SPECS

it is mandatory to install the fuse at a maximum distance of 12 inches from the battery. **Power at 14.4V @ 60Hz with a maximum THD of 1%.

DIMENSIONAL DATA

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. 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. The images presented in this document are representative and merely illustrative; therefore, they do not necessarily correspond to the actual product/model.

References

• SounDigital USA Tracks for Set up

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