Expert PX8.2CONNECT 8-Channel 15-Band Parametric Equalizer User Manual

1. Introduction

Welcome to the user manual for the Expert PX8.2CONNECT Digital Signal Processor (DSP). This device is designed to provide precise control over your audio system, offering advanced equalization, crossover, and time alignment capabilities for an optimized listening experience. Please read this manual thoroughly before installation and operation to ensure proper use and maximum performance.

2. Safety Information

• Professional Installation Recommended: Due to the complexity of car audio systems, professional installation is highly recommended to prevent damage to the unit or vehicle.
• Power Connections: Ensure all power connections are secure and properly fused to prevent electrical shorts and fire hazards.
• Avoid Moisture: Do not expose the unit to water or excessive moisture.
• Temperature: Operate the unit within recommended temperature ranges. Avoid extreme heat or cold.
• Ventilation: Ensure adequate ventilation around the unit to prevent overheating.

3. Package Contents

Verify that all items are present in the package:

• Expert PX8.2CONNECT Digital Signal Processor
• User Manual (this document)
• Wiring Harness/Connectors (if applicable)

4. Product Overview

The Expert PX8.2CONNECT is an advanced 8-channel digital signal processor featuring a 15-band graphic equalizer and 3 parametric equalizers per channel. It offers Bluetooth connectivity for convenient control via a mobile application.

4.1 Front Panel Controls

Image Description: This image displays the front panel of the Expert PX8.2CONNECT. It features a central blue LCD screen, a large rotary knob labeled 'FUNC' on the right, and a row of seven push buttons below the screen. From left to right, these buttons are labeled 'CH-', 'CH+', 'MUTE', 'MAIN GAIN', 'EQ-IN', 'PRST', and 'ESC'. Below the buttons, there are eight indicator lights labeled 'LIMITER CH8' through 'CH1'. The Expert Electronics logo and Bluetooth symbol are also visible.

• Display Screen: Shows current settings and menu navigation.
• CH- / CH+: Navigates between output channels.
• MUTE: Mutes the selected channel or overall output.
• MAIN GAIN: Adjusts the overall output gain.
• EQ-IN: Toggles the equalizer on/off.
• PRST: Accesses preset settings.
• ESC: Exits current menu or function.
• FUNC Knob: Rotary encoder for menu navigation and value adjustment.

4.2 Rear Panel Connections

Image Description: This image shows the rear panel of the Expert PX8.2CONNECT. It features eight RCA output jacks labeled 'CH8' through 'CH1' on the left. On the right, there are two green terminal blocks. The left terminal block is labeled 'HI INPUT L R' for high-level audio input. The right terminal block is labeled 'POWER GND REM 12V IN OUT' for power and remote connections.

• RCA Outputs (CH1-CH8): Connect to your amplifiers.
• High Input (L/R): Connect to high-level audio outputs from your source unit.
• Power Terminals (GND, REM, +12V): For power supply and remote turn-on/off.

5. Setup

5.1 Wiring Instructions

1. Ground (GND): Connect the GND terminal to a clean, solid chassis ground point in your vehicle. Ensure a good electrical connection to prevent noise.
2. Remote (REM): Connect the REM terminal to the remote turn-on output of your head unit or ignition-switched 12V source. This will turn the PX8.2CONNECT on and off with your audio system.
3. +12V: Connect the +12V terminal to a constant 12V power source from your vehicle's battery, protected by an appropriate fuse (not supplied).
4. Audio Inputs: Connect the High Input L/R terminals to the high-level audio outputs of your source unit (e.g., car stereo).
5. Audio Outputs: Connect the RCA outputs (CH1-CH8) to the corresponding input channels of your external amplifiers.

5.2 Initial Power On

After completing all wiring, turn on your vehicle's ignition and head unit. The PX8.2CONNECT display should illuminate, indicating successful power-up. If the unit does not power on, recheck all power connections and fuses.

6. Operating Instructions

6.1 Basic Navigation

Use the FUNC rotary knob to scroll through menu options and adjust values. Press the FUNC knob to select an option. The CH- and CH+ buttons allow you to quickly switch between output channels for individual adjustments. The ESC button will take you back to the previous menu or exit a function.

6.2 Bluetooth Connection and App Control

The PX8.2CONNECT can be controlled wirelessly via a mobile application:

1. Download App: Search for and download the "Expert RLINE" application from your mobile device's app store. Note: Other "Expert" apps may not be compatible.
2. Enable Bluetooth: Ensure Bluetooth is enabled on your mobile device.
3. Connect: Open the "Expert RLINE" app and follow the on-screen instructions to search for and connect to your PX8.2CONNECT unit.
4. Control: Once connected, you can use the app to access and adjust all DSP functions, including:
• Equalization: Fine-tune the 15-band graphic EQ and 3 parametric EQs for each channel.
• Crossover Points: Set high-pass, low-pass, and band-pass filters for each channel.
• Gains: Adjust input and output gains for optimal signal levels.
• Time Alignment: Adjust delays for individual channels to create a precise soundstage.
• Channel Routing: Configure how input signals are routed to the 8 output channels.

6.3 Hard Reset

To perform a hard reset of the unit, long press the "ESC" button on the front panel until a reset message appears on the display. This will revert all settings to factory defaults.

7. Maintenance

The Expert PX8.2CONNECT requires minimal maintenance. Keep the unit clean and dry. Use a soft, dry cloth to wipe down the exterior. Avoid using abrasive cleaners or solvents, as these can damage the finish or internal components.

8. Troubleshooting

• No Power:
  • Check all power connections (+12V, GND, REM) for proper contact and polarity.
  • Verify that the inline fuse on the +12V line is not blown.
• No Sound Output:
  • Ensure audio input and output cables are securely connected.
  • Check channel routing settings in the app to ensure signals are directed to the correct outputs.
  • Verify that the unit is not muted (check MUTE button and app settings).
  • Confirm that gain settings are not set too low.
• Hissing or Background Noise:
  • Lower the "Main Gain" setting on the unit or within the app. A setting of -6 dB is often effective in reducing idle noise.
  • Ensure the unit has a clean, solid ground connection.
  • Check for proper shielding of RCA cables.
• Bluetooth Connection Issues:
  • Confirm you are using the "Expert RLINE" app.
  • Restart both the PX8.2CONNECT unit and your mobile device.
  • Ensure your mobile device is within close proximity to the PX8.2CONNECT.
• Remote Out Not Functioning (for turning on amplifiers):
  • Verify the remote input to the PX8.2CONNECT is receiving a signal.
  • Check the wiring from the PX8.2CONNECT's remote output to your amplifiers.
  • If the issue persists, professional inspection may be required.

9. Specifications

Image Description: This image provides the physical dimensions of the Expert PX8.2CONNECT unit. The length is indicated as 9.84 inches, the width as 1.18 inches, and the height as 4.72 inches.

10. Warranty and Support

For warranty information or technical support, please contact Expert customer service. Details regarding specific warranty terms and conditions may be available on the manufacturer's official website or through your point of purchase.