1. Introduksjon
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. Sikkerhetsinformasjon
- Les alle instruksjonene nøye før installasjon og bruk.
- Disconnect the vehicle's negative battery terminal before making any electrical connections.
- Sørg for riktig jording for å unngå elektriske farer.
- Ikke utsett enheten for fuktighet eller ekstreme temperaturer.
- Mount the unit securely to prevent movement during vehicle operation.
- Rådfør deg med en profesjonell installatør av bilstereo hvis du er usikker på noen av installasjonstrinnene.
3. Pakkens innhold
Bekreft at alle varene er til stede i pakken:
- NVX XDSP28 Digital Signal Processor Unit
- Remote Level Controller with Cable
- Brukerhåndbok
- Monteringsutstyr (skruer osv.)
4. Produktet er overview
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.
- Fjerninngang (REM IN): Slår på 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.
- LCD-skjerm: Displays information and allows interaction with the processor.
- Main Control: 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.
- Utgang LED-indikator: Signals when the input signal is at maximum level.
- Output Select: Quickly press to adjust output channels or hold to mute.
Figur 4.2: Øverst view of the NVX XDSP28 unit, showing the main control knob, LCD display, and input/output connections.
Figur 4.3: Bak 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. Oppsett og installasjon
Riktig installasjon er avgjørende for optimal ytelse. Følg disse trinnene nøye:
- Montering: 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.
- Strømtilkoblinger:
- Koble til +BAT terminal to the vehicle's positive battery terminal (or a constant 12V source) using appropriate gauge wire and an inline fuse (not included).
- Koble til GND terminal to a clean, unpainted metal surface on the vehicle chassis, ensuring a solid ground connection.
- Koble til REM IN terminal to the remote turn-on output of your head unit or ignition switch.
- Lydinngangstilkoblinger: Koble hovedenhetens RCA-utganger til Inputs A og B on the XDSP28.
- Lydutgangstilkoblinger: Koble til Utganger 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 FJERNKONTROLL port on the DSP unit. Mount the controller in an accessible location for easy adjustment.
- Første oppstart: Reconnect the vehicle's negative battery terminal. The DSP should power on, and the LCD display will illuminate.
6. Drift
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 Menynavigasjon
- Roter Hovedkontroll knob to scroll through menu options.
- Trykk på Hovedkontroll knob to select an option or confirm a setting.
- Trykk og hold inne Hovedkontroll knob to exit a menu or return to the previous screen.
6.2 Utjevning (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.
- Parametrisk EQ: 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.
- Begrenser: The integrated Limiter with Dynamic Attack-Release system protects your amplifiers and speakers from over-excursion and clipping.
6.6 Lydgenerator
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 Bluetooth-tilkobling
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. Vedlikehold
- Keep the unit clean and free of dust. Use a soft, dry cloth for cleaning.
- Unngå bruk av sterke kjemikalier eller skurende rengjøringsmidler.
- Sørg for at alle tilkoblinger er sikre. Sjekk ledningene regelmessig for tegn på slitasje eller skade.
8. Feilsøking
| Problem | Mulig årsak | Løsning |
|---|---|---|
| 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. |
| Ingen lydutgang. | 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). |
| Forvrengt eller dårlig lydkvalitet. | 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. |
| Problemer med Bluetooth-tilkobling. | Device not in pairing mode; Interference; Already connected to another device. | 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. Spesifikasjoner
| Trekk | Spesifikasjon |
|---|---|
| Modell | NVX XDSP28 |
| Antall kanaler | 8 (utgang) |
| Inngangskanaler | 2 RCA |
| Utgangskanaler | 8 RCA (up to 2 Volts output) |
| Equalizer | 15-bånds parametrisk EQ |
| Signal-til-støy-forhold | > 94 dB |
| Total harmonisk forvrengning (THD) | 0.01 % |
| Time Adjustment Increments | 0.02 ms |
| Fasejustering | 0° eller 180° |
| Graphic EQ Presets | 12 (Rock, Hip Hop, Pop, Vocal, etc.) |
| Minimum Tilførsel Voltage | 10 volt (DC) |
| Maksimal forsyning Voltage | 16 volt (DC) |
| Dimensjoner (L x B x H) | 200 mm x 101 mm x 37 mm (7.87 x 3.98 x 1.46 tommer) |
| Varevekt | 0.7 kilo |
| Bluetooth | Built-in (for audio streaming) |
| Remote Level Controller | Included, for simultaneous output control |
10. Garanti og støtte
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 webnettstedet eller gjennom forhandleren din.