SounDigital 400.2 EVO5 Owner's Manual

Introduction

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: info@soundigitalusa.com

PACKAGE CONTENTS

• 01 400.2 EVO5 Amplifier
• 01 Installation quick guide with warranty card
• 01 Cable for high level input
• 01 Promotional sticker

Safety Instructions

To avoid injury to the user or damage to the amplifier, read all safety instructions written on this manual.

• The installation of this product must be done by a qualified professional. In case of any doubt, please contact our technical support.
• When passing cables through metallic walls, use rubber O-rings to avoid cable cutting and short-circuits.
• 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. ?
• Make sure that the chosen location for the amplifier installation does not affect the operation of the vehicle.
• This product may reach temperatures over 60°C (140°F). Make sure it is cold before touching it. ?️
• 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.
• 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 throughout the installation.
• Fix the amplifier properly and firmly. Avoid fixing to metallic parts of the vehicle, as this procedure may cause ground looping (noise).
• 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.

Assembling and Disassembling the Plastic Cover

The plastic covers are used to finish off and hide the amplifier's fixing screws. To disassemble and assemble them, follow the instructions below.

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.

*Merely illustrative images.

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.

*Merely illustrative images.

Panels Description

Audio Inputs and Controls

The amplifier features the following inputs and controls:

• 1. CH1/CH2 Crossover Switch: Selects Low Pass, Full Range, or High Pass.
• 2. Variable Gain Control: Adjusts the input signal level.
• 3. High Level Input: For connecting to the speaker output of the head unit.
• 4. CH2 Audio Input: RCA connector for Channel 2.
• 5. CH1 Audio Input: RCA connector for Channel 1.
• 6. "POWER ON" LED Indicator: Indicates the amplifier's power status (Blue).

*Merely illustrative image.

Power Inputs and Audio Outputs

The rear panel provides connections for power and speakers:

• 7. Negative Power Supply Connector (GND): Connect to vehicle chassis ground.
• 8. Remote Power Supply Connector (REM): Connects to the head unit's remote output.
• 9. Positive Power Supply Connector (+12VDC): Connect to the vehicle's positive battery terminal (via fuse).
• 10. CH2 Negative Speaker Connector (-): Connect to the negative terminal of the Channel 2 speaker.
• 11. CH2 Positive Speaker Connector (+): Connect to the positive terminal of the Channel 2 speaker.
• 12. CH1 Negative Speaker Connector (-): Connect to the negative terminal of the Channel 1 speaker.
• 13. CH1 Positive Speaker Connector (+): Connect to the positive terminal of the Channel 1 speaker.

*Merely illustrative image.

Installation Sequence

⚠️ 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 a location that allows easy access to the connectors.
• Install the power cables from the battery to the fuse holder or circuit breaker, using appropriately sized cables. Make all connections and install fuse holders/breakers, but keep fuses out or breakers in the "OFF" position.
• ⚠️ THE MAXIMUM DISTANCE FOR THE INSTALLATION OF THE FUSE/CIRCUIT BREAKER IS 12 INCHES (30cm) AWAY FROM THE BATTERY.
• Connect the power cables to the amplifier, observing polarity. Connect all positive (+) cables from the fuse holder/breaker to the amplifier's positive connector and all negative power cables from the batteries to the amplifier's negative connector.
• The ground cable must be as short as possible and connected to the vehicle chassis and the battery negative terminal. Ensure the connection point on the chassis is free of paint.
• Install the signal input cables (RCA or High Level) away from the power cables.
• Connect the RCA or high level signal input cables to the head unit and amplifiers.
• Install the audio output cables with appropriate gauge, keeping them distant from power and audio input cables.
• Connect the audio output cables to the amplifier and speakers, respecting positive (+) and negative (-) polarities.
• Install the remote cable alongside the power cables, using at least 1.5mm² (15 AWG) cable.
• Connect the remote power cable to the amplifier's "REM" terminal, typically from the head unit's remote power output (unless using high level inputs).
• Before powering the system, verify all connections for mistakes or short-circuits on power and ground cables.
• Reconnect the battery ground terminals.
• Ensure the head unit is turned off, then insert fuses or switch circuit breakers ON.
• Turn on the main unit. The amplifier's "POWER ON" LED will illuminate, indicating it is in operation.

Minimum recommended installation distance between amplifiers: 1.18 inches (30mm) *For installations with more than one amplifier, second unit not included. Merely illustrative images.

Electrical Dimensioning and Audio Inputs

ELECTRICAL DIMENSIONING

For proper operation of your SounDigital amplifier, ensure correct dimensioning of the electrical system and cables used. The table below shows the minimum recommended cable sections for GND, +12VDC, and speaker output cables based on the amplifier's power output.

SounDigital recommends using only OFC (Oxygen Free Copper) cables for installations. Copper-clad aluminum wire (CCAW) must not be used.

AUDIO INPUTS

RCA inputs

All RCA inputs must be connected for the amplifier to work properly.

Diagram shows RCA cables connecting from a head unit to the CH1 and CH2 RCA inputs on the amplifier. Ground (GND) and Remote (REM) connections are also shown.

High level signal input

All High level signal inputs must be connected for the amplifier to work properly.

Diagram shows speaker wires from a head unit connecting to the High Level Input terminals on the amplifier. No Remote (REM) connection is needed when using High Level input.

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, as 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.

Wiring Diagram

2 CHANNELS WIRING DIAGRAM (PER CHANNEL)

This diagram illustrates the wiring for using the amplifier in 2-channel mode.

Diagram shows connections: RCA inputs (CH1, CH2) from head unit to amplifier, GND, +12V, and REM connections to power source and head unit, and speaker outputs (CH1, CH2) to speakers. A fuse is shown in the +12V line near the battery. Minimum impedance for 4Ω per channel is indicated.

In case of connections with more than one battery, see the installation diagram on page 13.

1 CHANNEL WIRING DIAGRAM (BRIDGE)

This diagram illustrates the wiring for using the amplifier in bridged mode.

Diagram shows connections for bridged mode: RCA inputs (CH1) from head unit to amplifier, GND, +12V, and REM connections. Speaker outputs are bridged (CH1+ and CH2-) to a single speaker. A fuse is shown in the +12V line near the battery. Minimum impedance for 4Ω bridged is indicated.

In case of connections with more than one battery, see the installation diagram on page 13.

Gain Setting

Necessary Equipment:

• Digital AC voltmeter.
• Media with a 60Hz sine wave test tone recorded at 0dB.

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 the center position.
• Set the crossover selector switch to "F" (Full Range).
• Use a 60Hz sine wave test tone.
• Connect the AC voltmeter to the speaker output connectors of the amplifier. Ensure you test the voltage at the correct connectors (+ and -).
• Increase the gain control until the target voltage is observed with the voltmeter (refer to the chart below).
• Once the amplifier is adjusted to the correct voltage output, turn off the source unit and reconnect the speaker(s).

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

Crossover Set Up

The X-OVER switch allows selection between three modes:

• "F" (Full Range): All frequencies will be reproduced.
• "LP" (Low Pass): Frequencies below 80Hz will be reproduced.
• "HP" (High Pass): Frequencies above 80Hz will be reproduced.

Full Range ("F"): Change the switch to "F" position. All frequencies will be reproduced as shown in the figure below.

Diagram shows a frequency response curve with a flat response from 10Hz to 20kHz, indicating full range reproduction.

High Pass ("HP"): Change the switch to "HP" position. All frequencies above 80Hz will be reproduced as shown in the figure below.

Diagram shows a frequency response curve starting flat above a crossover frequency (fc) and rolling off at 12dB/octave below it.

Low Pass ("LP"): Change the switch to "LP" position. All frequencies below 80Hz will be reproduced as shown in the figure below.

Diagram shows a frequency response curve rolling off at 12dB/octave above a crossover frequency (fc) and remaining flat below it.

Battery Connection Diagram

When connecting 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 for maximum system performance. For ideal energy performance, connect all batteries to positive and negative busbars, and then connect the busbars to the amplifier, as shown in the diagram below:

⚠️ It is mandatory to install the fuse at a maximum distance of 12 inches from the battery.

Diagram shows a recommended setup with two batteries connected to busbars (+ and -), with fuses on the positive lines near each battery. Cables of equal length connect batteries to busbars, and busbars to the amplifier. A green checkmark indicates this is the correct method.

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.

Battery connections without the use of a busbar, as shown in the example below, must be avoided. This setup decreases the efficiency of supplying power to the system.

❌ Battery connections without the use of a busbar must be avoided.

Diagram shows a discouraged setup with batteries connected directly in series without busbars, with fuses. A red cross indicates this is incorrect. It also reiterates the mandatory fuse placement.

Technical Specifications

PARAMETERS

*It is mandatory to install the fuse at a maximum distance of 12 inches from the battery.

**Power at 12.6V @ 60Hz with a maximum THD of 1%. POWER RATING ACCORDING TO CTA-2006 INDUSTRY STANDARDS.

DIMENSIONAL DATA

Physical dimensions of the amplifier:

• Length: 120.0mm (4.7")
• Height: 113.0mm (4.4")
• Width: 105.8mm (4.2")
• Depth (terminal side): 101.0mm (4.0")
• Depth (other side): 50.9mm (2.0")

Net Weight: 0.52 kg (1.15 lb)

Gross Weight: 0.58 kg (1.28 lb)

*Weights may vary slightly depending on the manufacturer.

ADDITIONAL INFORMATION

The values presented are based on measurements performed in SounDigital's laboratories. All equipment used in assays, tests, measurements, and gauging of technical parameters were calibrated in certified laboratories, ensuring performance and standard of excellence. Manufacturing processes and electronic components may present variations, leading to small differences in measurements. Small variations in the values presented and divulged by SounDigital are recognized.

Updates to this document will be published and available free of charge on the brand's websites. Users are advised to consult the latest version when necessary. The images presented in this document are representative and illustrative; they do not necessarily correspond to the actual product/model.