1. Introducció
The EXPERT PX8.2 is a high-quality digital audio processor and crossover designed for automotive sound systems. It offers advanced sound tuning capabilities, allowing for precise control over your vehicle's audio environment. This manual provides essential information for the proper installation, operation, and maintenance of your PX8.2 unit.
The PX8.2 is available in two versions:
- Connect Version: Features RCA inputs for standard audio connections.
- Hi-Connect Version: Features wire inputs for high-level audio connections.
2. Informació de seguretat
Please read and understand all safety instructions before installing and operating the EXPERT PX8.2. Failure to follow these guidelines may result in injury or damage to the device or vehicle.
- Desconnecteu sempre la bateria del vehicle abans de realitzar qualsevol treball elèctric.
- Assegureu-vos que tot el cablejat estigui correctament connectat i aïllat per evitar curtcircuits.
- Mount the unit securely in a location that does not obstruct driving or interfere with vehicle safety systems.
- Eviteu exposar la unitat a un excés d'humitat, pols o temperatures extremes.
- No intenteu obrir ni reparar la unitat vosaltres mateixos. Encarregueu tot el manteniment a personal qualificat.
3. Producte acabatview
3.1. Característiques
- High Quality Digital Crossover
- Simplified and Accurate Commands
- Rotary Encoder for navigation
- 2 Entrades
- 8 Independent Outputs
- Encaminament de canals
- Input Equalizer with 15 Spacing Bands in 1/3 of an Octave
- Parametric Equalizer with 3 Independent Bands per Channel
- Independent Delay per Channel
- Automatic or Manual Limiter with Threshold, Attack, and Decay
- Inversió de polaritat
- Input Gain adjustment
- Independent Mute per Channel
- Generador de soroll rosa
- User Password protection
- Preset with All Settings (Pert)
- Independent Gain by Channel
- 300mA Remote Output
- Entrada desequilibrada
- 8 Customizable Channels
- Control via Tablet or Smartphone Application (Free APP available on Google Play Store or Apple Store)
3.2. Components i connexions
3.3. Version Differences: Inputs
4. Configuració i instal·lació
4.1. Muntatge de la unitat
Choose a dry, well-ventilated location within your vehicle, away from direct heat sources or moving parts. Ensure the mounting surface is stable and secure. Use appropriate screws or fasteners to firmly attach the PX8.2 unit.
4.2. Connexions de cablejat
The PX8.2 requires power, ground, and remote turn-on connections, in addition to audio inputs and outputs.
- Connexió d'alimentació: Connect the +12V terminal to a fused constant +12V power source from your vehicle's battery.
- Connexió a terra: Connect the GND terminal to a solid chassis ground point in your vehicle.
- Encès remot: Connect the REM IN terminal to your head unit's remote output. The REM OUT terminal provides a 300mA remote output for other devices.
- Entrades d'àudio:
- Connect Version: Use RCA cables to connect your head unit's audio outputs to the PX8.2's RCA inputs (IN-L, IN-R).
- Hi-Connect Version: Use speaker wire to connect your head unit's speaker outputs to the PX8.2's HI INPUT terminals.
- Sortides d'àudio: Connect the 8 independent RCA outputs (CH1-CH8) to your ampamplificadors o altres components d'àudio.
4.3. Instal·lació de l'aplicació
To fully utilize the PX8.2's features, download the free control application from the Google Play Store (for Android devices) or the Apple App Store (for iOS devices). Follow the on-screen instructions to pair your smartphone or tablet with the PX8.2 via Bluetooth.
5. Instruccions de funcionament
The EXPERT PX8.2 can be controlled via its front panel buttons and rotary encoder, or more comprehensively through its dedicated mobile application.
5.1. Controls del tauler frontal
The front panel features a display, a rotary encoder, and several buttons:
- Rotary Encoder (FUNC): Used for navigating menus and adjusting parameter values. Press to confirm selections.
- CH- / CH+: Navega entre canals.
- MUT: Silencia la sortida d'àudio.
- GUANY: Accesses gain settings.
- EQ IN: Toggles the equalizer on/off.
- PRST (Preset): Accesses and saves user presets.
- ESC: Surt del menú actual o cancel·la una acció.
5.2. Control d'aplicacions mòbils
The mobile application provides a graphical interface for all PX8.2 functions, offering more intuitive and precise control.
- Connexió Bluetooth: Ensure Bluetooth is enabled on your mobile device and the PX8.2. Open the app and select your PX8.2 unit to connect.
- Channel Routing: Assign input signals to desired output channels.
- Igualació: Adjust the 15-band input equalizer and 3-band parametric equalizer for each channel to fine-tune the sound.
- Retard: Set independent time delays for each channel to achieve optimal sound staging.
- Limitador: Configure the automatic or manual limiter with threshold, attack, and decay settings to protect your speakers.
- Inversió de polaritat: Adjust the polarity of individual channels.
- Input/Channel Gain: Precisely control the input and individual channel gain levels.
- Generador de soroll rosa: Use the built-in pink noise generator for system tuning and measurement.
- Contrasenya d'usuari: Set a password to protect your settings.
- Presets: Save and recall multiple custom audio settings.
6. Manteniment
- Neteja: Feu servir un drap suau i sec per netejar la unitat. No utilitzeu productes químics agressius ni netejadors abrasius.
- Connexions: Reviseu periòdicament totes les connexions del cablejat per assegurar-vos que estiguin ben fixades i que no presentin corrosió.
- Actualitzacions de programari: Check the app store regularly for any available software or firmware updates for the PX8.2 to ensure optimal performance and access to new features.
7. Solució De Problemes
If you encounter issues with your EXPERT PX8.2, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| La unitat no s'encén | No power, blown fuse, faulty remote connection | Check +12V and GND connections. Verify the 2A fuse. Ensure REM IN receives a +12V signal from the head unit. |
| Sense sortida d'àudio | Incorrect input/output connections, muted channels, incorrect gain settings | Verify all audio cables are correctly connected. Check if any channels are muted via the app or front panel. Adjust input and channel gain settings. |
| Àudio distorsionat | Input signal too high, incorrect equalizer settings, faulty wiring | Reduce input gain. Reset equalizer settings to default or adjust carefully. Check audio cables for damage or loose connections. |
| Problemes de connexió Bluetooth | Bluetooth off, unit not in pairing mode, interference | Ensure Bluetooth is enabled on both devices. Restart the PX8.2 and your mobile device. Try pairing again. Move closer to the unit. |
8. Especificacions
| Característica | Especificació |
|---|---|
| SKU del producte | 1466200 |
| Entrades | 2 (RCA for Connect, Wire for Hi-Connect) |
| Sortides | 8 Independents |
| Impedància d'entrada | 47 KOhms |
| Impedància de sortida | 470 ohms |
| Resolució | 24 bits |
| Sampfreqüència ling | 48 kHz |
| Processing Latency | 1.08 ms |
| Freqüència de resposta | 15 Hz to 22 KHz (-1dB) |
| THD + N Max | 0.01% |
| Relació senyal/soroll | 100 dB |
| Vol. Operatiutage | 10 a 15 VDC |
| Consum actual | 300 mA (5W) |
| Fusible | 2A |
| Dimensions (HxWxL) | 30 x 250 x 120 mm (Approximate) |
| Control | Front panel, Smartphone/Tablet App (Bluetooth) |
9. Consells d'usuari
- App Control for Precision: While the front panel offers basic control, the mobile application provides a much more detailed and visual interface for fine-tuning your audio settings. It is highly recommended to use the app for initial setup and advanced adjustments.
- Comença amb la configuració plana: When tuning your system, begin with all equalizer and crossover settings flat or at their default positions. Make small, incremental adjustments and listen carefully to the changes.
- Systematic Tuning: Tune one aspect of your sound system at a time (e.g., set crossovers, then adjust equalization, then time alignment) to better understand the impact of each adjustment.
10. Garantia i Suport
10.1. Garantia
The EXPERT PX8.2 Digital Audio Processor comes with a 1 any de garantia from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, misuse, accidents, or unauthorized modifications.
10.2. Suport tècnic
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact the seller or an authorized EXPERT Electronics service center. Refer to your purchase documentation for specific contact information.
