1. Introducción
The NVX XDSP28 is an advanced 8-channel Digital Signal Processor (DSP) designed to enhance your car audio system. It features a 15-band parametric equalizer, adjustable high and low-pass filters, and various crossover types for precise sound customization. With 2 RCA inputs and 8 RCA outputs, built-in Bluetooth for audio streaming, and a remote level controller, the XDSP28 provides comprehensive control over your vehicle's sound environment. This manual provides detailed instructions for installation, operation, and troubleshooting to ensure optimal performance of your device.
2. Información de seguridad
- Lea atentamente todas las instrucciones antes de la instalación y el uso.
- Disconnect the vehicle's negative battery terminal before making any electrical connections.
- Asegure una conexión a tierra adecuada para evitar riesgos eléctricos.
- No exponga la unidad a la humedad ni a temperaturas extremas.
- Monte la unidad de forma segura para evitar que se mueva durante el funcionamiento del vehículo.
- Consulte con un instalador de audio para automóvil profesional si no está seguro acerca de alguno de los pasos de instalación.
3. Contenido del paquete
Verifique que todos los artículos estén presentes en el paquete:
- NVX XDSP28 Digital Signal Processor Unit
- Remote Level Controller with Cable
- Manual de usuario
- Herrajes de montaje (tornillos, etc.)
4. Producto terminadoview
Familiarize yourself with the components and controls of the NVX XDSP28.
Figure 4.1: NVX XDSP28 Front Panel with Labeled Components
- Remote Out Sequencer: Activates other devices in sequence through a remote connection.
- Entrada remota (REM IN): Gira el amplifier on automatically with the radio or player.
- Ground Connector (GND): Connect to the battery's negative terminal.
- Positive Power Connector (+BAT): Connect to the battery's positive terminal.
- Pantalla LCD: Displays information and allows interaction with the processor.
- Control principal: A rotating knob to adjust processor system settings and navigate menus.
- Input LED Indicator: Shows when the channel's limiter is active or output is saturated.
- Remote Level Input: Connects the external remote level controller. Controls all eight outputs simultaneously.
- Audio Input (Inputs A, B): Independent RCA connectors for channels A and B.
- Audio Output (Outputs 1-8): RCA connectors for outputting processed audio.
- Indicador LED de salida: Signals when the input signal is at maximum level.
- Selección de salida: Quickly press to adjust output channels or hold to mute.
Figura 4.2: Arriba view of the NVX XDSP28 unit, showing the main control knob, LCD display, and input/output connections.
Figura 4.3: Posterior view of the NVX XDSP28, highlighting the power and remote connections.
Figure 4.4: The remote level controller for the NVX XDSP28, used for simultaneous output control.
5. Configuración e instalación
Una instalación correcta es crucial para un rendimiento óptimo. Siga estos pasos cuidadosamente:
- Montaje: Select a secure, dry location in your vehicle, away from heat sources and moisture. Use the provided mounting hardware to firmly attach the DSP unit.
- Conexiones de energía:
- Conectar el +BAT terminal to the vehicle's positive battery terminal (or a constant 12V source) using appropriate gauge wire and an inline fuse (not included).
- Conectar el Tierra terminal a una superficie metálica limpia y sin pintar en el chasis del vehículo, lo que garantiza una conexión a tierra sólida.
- Conectar el ENTRADA REM terminal to the remote turn-on output of your head unit or ignition switch.
- Conexiones de entrada de audio: Conecte las salidas RCA de su unidad principal a la Inputs A y B on the XDSP28.
- Conexiones de salida de audio: Conectar el Salidas 1-8 of the XDSP28 to the RCA inputs of your amplifiers. Ensure correct channel assignment for your speaker configuration.
- Remote Level Controller: Plug the remote level controller cable into the REMOTO port on the DSP unit. Mount the controller in an accessible location for easy adjustment.
- Encendido inicial: Reconnect the vehicle's negative battery terminal. The DSP should power on, and the LCD display will illuminate.
6. Operación
The NVX XDSP28 offers extensive control over your audio system. All settings are adjusted via the Main Control knob and the LCD display.
6.1 Navegación por menús
- Girar el Control principal knob to scroll through menu options.
- Presione el Control principal knob to select an option or confirm a setting.
- Mantenga pulsado el Control principal knob to exit a menu or return to the previous screen.
6.2 Ecualización (EQ)
The XDSP28 features a 15-band parametric equalizer for precise frequency adjustments.
- Graphic EQ Presets: Select from 12 pre-defined graphic equalization presets such as Rock, Hip Hop, Pop, Vocal, and more.
- Ecualizador paramétrico: Manually adjust gain, frequency, and Q-factor for each of the 15 bands on both input and output channels.
6.3 Crossover Function
Configure high-pass and low-pass filters for each output channel to optimize speaker performance.
- Adjust cut frequencies for high-pass and low-pass filters.
- Select various crossover types and filter slopes (e.g., Butterworth, Linkwitz-Riley).
6.4 Time Alignment and Phase
Achieve perfect sound staging by adjusting the delay for each output channel.
- Adjust time delays in 0.02 ms increments.
- Set phase adjustments to 0° or 180° for each output.
6.5 Independent Gain and Limiter
- Independent Gain: Adjust the gain level for each output channel individually.
- Limitador: The integrated Limiter with Dynamic Attack-Release system protects your amplifiers and speakers from over-excursion and clipping.
6.6 Generador de audio
Utilize the built-in audio tone generator for precise tuning and system diagnostics.
- Generate frequency sweeps.
- Generate pink noise for RTA (Real-Time Analyzer) measurements.
6.7 Conectividad Bluetooth
The XDSP28 features built-in Bluetooth for wireless audio streaming from your mobile device.
- Pair your device with the XDSP28 via Bluetooth settings on your phone.
- Bluetooth is for audio playback only; it does not support app-based control of DSP settings.
6.8 Remote Level Controller
The external remote level controller allows for convenient, simultaneous adjustment of all eight output levels.
7. Mantenimiento
- Keep the unit clean and free of dust. Use a soft, dry cloth for cleaning.
- Evite utilizar productos químicos agresivos o limpiadores abrasivos.
- Asegúrese de que todas las conexiones estén bien sujetas. Revise periódicamente el cableado para detectar cualquier signo de desgaste o daño.
8. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| No power to the DSP. | Incorrect power wiring; Blown fuse; Loose ground connection. | Check +BAT, GND, and REM IN connections. Verify fuse integrity. Ensure a solid ground connection. |
| No hay salida de sonido. | Incorrect input/output connections; DSP muted; Amplifier not powered on; Incorrect source selection. | Verify all RCA connections. Check DSP mute status (Output Select button). Ensure amplifiers are receiving remote turn-on signal. Confirm correct input source (A, B, or A+B). |
| Calidad de sonido distorsionada o deficiente. | Incorrect EQ settings; Improper crossover settings; Input signal too high/low; Limiter engaged excessively. | Adjust EQ settings. Review crossover frequencies and slopes. Check input gain levels. Monitor Input LED indicators for clipping. |
| Problemas de conexión Bluetooth. | Dispositivo no en modo de emparejamiento; Interferencia; Ya está conectado a otro dispositivo. | Ensure Bluetooth is enabled on your device and the DSP. Disconnect from other Bluetooth devices. Move closer to the DSP. |
| Main Control knob is overly sensitive. | Characteristic of the control mechanism. | Exercise caution and precision when rotating and pressing the knob for menu navigation and setting adjustments. |
| Remote Level Controller causes input glitches. | Potential unit-specific issue or interference. | Ensure the remote cable is securely connected and not damaged. If issues persist, try operating without the remote controller to isolate the problem. Contact support if necessary. |
9. Especificaciones
| Característica | Especificación |
|---|---|
| Modelo | NVX XDSP28 |
| Número de canales | 8 (Salida) |
| Los canales de entrada | 2 RCA |
| Canales de salida | 8 RCA (up to 2 Volts output) |
| Igualada | Ecualizador paramétrico de 15 bandas |
| Relación señal a ruido | > 94 dB |
| Distorsión armónica total (THD) | 0.01% |
| Time Adjustment Increments | 0.02 ms |
| Ajuste de fase | 0° o 180° |
| Graphic EQ Presets | 12 (Rock, Hip Hop, Pop, Vocal, etc.) |
| Volumen mínimo de suministrotage | 10 voltios (CC) |
| Volumen máximo de suministrotage | 16 voltios (CC) |
| Dimensiones (L x An x Al) | 7.87" x 3.98" x 1.46" (200 mm x 101 mm x 37 mm) |
| Peso del artículo | 0.7 kilogramos |
| Bluetooth | Built-in (for audio streaming) |
| Remote Level Controller | Included, for simultaneous output control |
10. Garantía y soporte
NVX products are designed for reliability and performance. For specific warranty details, please refer to the warranty card included with your product or contact the retailer where the product was purchased. Keep your proof of purchase for warranty claims.
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact NVX customer support or the authorized dealer. Contact information can typically be found on the manufacturer's official websitio o a través de su minorista.