User Manual for SounDigital 3000.1 EVO6 Amplifier

Quick Guide

This manual provides essential instructions for the SounDigital 3000.1 EVO6 amplifier. Key points for a successful installation include:

• Safety First: Always disconnect the negative battery terminal before starting any installation to prevent short circuits and injury.
• Fuse Placement: It is mandatory to install a fuse or circuit breaker within 12 inches (30cm) of the battery.
• Cable Quality: Use only OFC (Oxygen Free Copper) cables. Avoid Copper-clad aluminum wire (CCAW).
• Ventilation: Ensure the amplifier is installed in a ventilated area and do not block side ventilation windows.
• Voltage: This equipment is designed for automotive DC voltage batteries between 12.6V and 14.4V.

Safety Instructions

To avoid injury or damage to the equipment, follow these safety guidelines:

• Installation must be performed by a qualified professional.
• Wear appropriate PPE (gloves, safety glasses) during installation.
• When passing cables through metallic walls, use rubber O-rings to prevent cutting and short circuits.
• Ensure the amplifier is fixed firmly and not attached to metallic parts of the vehicle to avoid ground loops.
• Be cautious when drilling holes in the vehicle to avoid fuel tanks, brake lines, or electrical cables.
• The amplifier can reach temperatures over 60°C (140°F); allow it to cool before touching.

Panels Description

The amplifier features two main panels:

• Audio Inputs and Controls: Includes RCA inputs, Bass Boost (0-12dB at 50Hz), Gain control, Low Pass filter (80Hz-20kHz), and High Pass filter (5Hz-80Hz). It also features Power (Blue) and Clip (Yellow) LED indicators.
• Power Inputs and Audio Outputs: Includes terminals for GND (Negative), REM (Remote), +12VDC (Positive), and Speaker output connectors.

Installation Sequence

1. Disconnect the negative battery terminal.
2. Fix the amplifier in a location with easy access to connectors.
3. Install power cables from the battery to the fuse holder, keeping the fuse in the "OFF" position.
4. Connect power cables to the amplifier, observing correct polarity.
5. Connect the ground cable to the vehicle chassis and battery negative; ensure it is as short as possible.
6. Install signal input cables away from power cables.
7. Connect RCA cables to the head unit and amplifier.
8. Connect audio output cables to speakers, respecting polarity.
9. Connect the remote cable (1.5mm² / 15 AWG or thicker) to the amplifier's REM terminal.
10. Verify all connections for short circuits before powering on.
11. Reconnect the battery ground and switch on the system.

Electrical Dimensioning

Proper electrical dimensioning is critical for performance. The recommended cable sections are:

• Power/Ground Cable: 35mm² (2 AWG).
• Speaker Cable: 6.0mm² (9 AWG) for 1Ω, 4.0mm² (11 AWG) for 2Ω, 2.5mm² (13 AWG) for 4Ω.
• Remote Cable: 1.5mm² (15 AWG).

Gain Setting

To set the gain correctly:

1. Turn gain control to minimum.
2. Disconnect output cables.
3. Set source unit volume to 3/4.
4. Set Bass Boost to 0dB, High Pass to 5Hz, and Low Pass to 20kHz.
5. Use a 60Hz sine wave test tone.
6. Increase gain until the "CLIP" LED starts blinking, then back off slightly until it remains off.

Bass Boost and Crossover Setup

• Bass Boost: Adjustable from 0 to +12dB at 50Hz.
• Crossovers: Use the High Pass and Low Pass filters to create a bandpass filter. The High Pass filter (5Hz-80Hz) cuts low frequencies, while the Low Pass filter (80Hz-20kHz) cuts high frequencies.

Wiring and Battery Connection

For systems with multiple batteries, use positive and negative busbars. Ensure all cables from the battery to the busbar and from the busbar to the amplifier are of the same length to maintain efficiency. Avoid connecting batteries without a busbar.

Troubleshooting

• Amplifier does not turn on: Check power and remote signal cable connections.
• Blue LED flashes: Check battery, cables, and fuse holder; ensure voltage is within range.
• Yellow LED flashes: Check for short circuits in output wiring or speakers; verify minimum impedance.
• Abnormal noise: Check RCA cables, ground quality, and spark plug wires.

Technical Specifications

The 3000.1 EVO6 operates with a frequency response of 5Hz ~ 20kHz and an SNR of 92dB. It requires a minimum 150A fuse and 150Ah battery. Refer to the full technical table in the manual for specific power ratings at 1Ω, 2Ω, and 4Ω.