1. Produttu Finituview
The NVX VADM4v2 is a powerful and compact 4-channel Class D amplifier designed for a wide range of applications including car, marine, UTV, and motorcycle audio systems. It delivers robust audio performance with advanced features for optimal sound customization.
Figure 1: NVX VADM4v2 4-Channel Class D Amplifier. This image shows the top-down view di u amplifier, highlighting its compact design and NVX branding.
Funzioni chjave:
- Prestazione putente: Peak power rating of 800 Watts and RMS power output ranging from 80 watts x 4 channels at 4 ohms to 125 watts x 4 channels at 2 ohms.
- Disegnu compactu: Utilizes Micro Class D technology for an extremely compact form factor, measuring just 6.49" L x 3.3" W x 1.48" H.
- Marine Certified Durability: Built with a conformal coated marine-grade circuit board to withstand harsh marine environments.
- Funzioni avanzate: LED power and protect indicators, 4-way protection circuitry (thermal, overload, speaker short protection, and DC offset), balanced differential inputs, and low-level RCA inputs.
- Versatile Audio Customization: Selectable crossover modes (FULL, HPF, LPF), variable high-pass and low-pass filters (40-400 Hz), and a wide frequency range of 20-20,000 Hz.
Figure 2: The NVX VADM4v2 amplifier is suitable for various applications including cars, trucks, SUVs, motorcycles, UTVs, ATVs, and marine vessels.
2. Informazioni di sicurezza
Osservate sempre e seguenti precauzioni di sicurezza durante l'installazione è u funziunamentu:
- Scollegate a batteria di u veiculu prima di inizià qualsiasi travagliu elettricu.
- Assicuratevi di mette a terra curretta per prevene i periculi elettrici.
- Use appropriate gauge wiring for power and speaker connections.
- Munti lu ampu lifer in modu sicuru in un locu ben ventilatu per impedisce u surriscaldamentu.
- Evitate di espunisce amplifier to extreme temperatures or direct sunlight.
- Ùn pruvate micca di apre o mudificà u ampCuntattate u persunale qualificatu per a manutenzione.
3. Cuntenutu di u pacchettu
Verificate chì tutti l'articuli sò presenti in u pacchettu:
- NVX VADM4v2 4-Channel Class D Amppiù vivu
- Wiring Harnesses (Power, Speaker, RCA inputs)
- Hardware di muntatura
- Manuale d'istruzzioni
Figure 3: Included wiring harnesses and RCA cables for the NVX VADM4v2 amplifier, facilitating easy connection to your audio system.
4. Setup è Installazione
4.1 Muntà u Amppiù vivu
Choose a secure, well-ventilated location for mounting the amplifier. Ensure it is protected from direct moisture and excessive heat. Use the provided mounting hardware to secure the amppiù vivu.
Figura 4: Side view of the NVX VADM4v2 amplifier, showing its compact profile suitable for various mounting locations.
4.2 Connessioni Wiring
Refer to the wiring diagrams below for proper connections. Ensure all connections are secure and insulated.
Figura 5: Primu pianu view of the power input and speaker output terminals on the NVX VADM4v2 amplifier. Connections include GND (Ground), REM (Remote Turn-On), +12V (Power), and speaker outputs for CH1-CH4.
- Alimentazione (BATT +12V): Connect to the positive terminal of the vehicle's battery via an appropriate fuse.
- Terra (GND): Connect to a solid, clean metal point on the vehicle's chassis.
- Accensione à distanza (REM): Connect to the remote output of your head unit or an ignition-switched 12V source.
- Speaker Outputs (CH1-CH4): Connect your speakers to the corresponding channels. Ensure correct polarity and impedance matching (2-4 ohms stable).
- Modu di input: Select between 2CH or 4CH input mode based on your head unit's output.
Figure 6: Control panel of the NVX VADM4v2 amplifier, showing gain controls, crossover switches (LPF/HPF/FULL), and input mode selection.
4.3 Input Signal Connection
The VADM4v2 supports both low-level (RCA) and high-level inputs.
- Ingressu di livellu bassu (RCA): Connect RCA cables from your head unit's pre-outs to the ampingressi RCA di lifier.
- Input di altu livellu: If your head unit does not have RCA outputs, use the provided high-level input harnesses to connect directly to your head unit's speaker outputs.
5. Funziunamentu di u Amppiù vivu
5.1 Ajustamentu di guadagnà
Adjust the GAIN knobs for each channel to match the output voltage di a vostra unità principale. Cuminciate cù u guadagnu à u minimu è aumentate pianu pianu finu à ottene u vulume desideratu senza distorsione.
5.2 Impostazioni di Crossover
The VADM4v2 features selectable crossover modes and variable filters:
Figura 7: Detailed view of the crossover controls on the NVX VADM4v2 amplifier, including LPF/HPF/FULL switches and variable frequency knobs.
- FULL: Full-range output, no filtering applied.
- HPF (filtru passa-altu): Allows frequencies above the set point to pass through. Useful for full-range speakers to prevent distortion from low bass.
- LPF (Filtru Passa-Bassu): Allows frequencies below the set point to pass through. Ideal for subwoofers.
- FREQ (Frequency Knob): Adjusts the cutoff frequency for HPF or LPF modes (40-400 Hz).
6. Mantenimentu
To ensure longevity and optimal performance of your NVX VADM4v2 amppiù vivu:
- Mantene u ampL'apparecchiu hè pulitu è senza polvere è detriti. Aduprate un pannu dolce è asciuttu per a pulizia.
- Assicurà un flussu d'aria adeguatu intornu à amplifier per impedisce u surriscaldamentu.
- Verificate regularmente tutti i cunnessione di i fili per a tenuta è a corrosione.
- Evitate di espunisce amplifier to harsh chemicals or solvents.
7. Risoluzione di prublemi
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| Nisuna alimentazione / LED di prutezzione accesu | Fusibile bruciatu, cunnessione di putenza/terra mala, filu di telecomandu scollegatu. | Check/replace fuse, verify power/ground connections, ensure remote wire is connected and receiving 12V. |
| Nisuna Output Sound | Incorrect input connections, speaker wires disconnected, gain too low. | Verify RCA/high-level inputs, check speaker connections and polarity, adjust gain settings. |
| Sonu distortu | Gain set too high, incorrect crossover settings, speaker impedance mismatch. | Lower gain, adjust crossover filters, ensure speakers match amplifier's impedance rating. |
| Ampsurriscaldamentu di l'alimentatore | Insufficient ventilation, impedance too low, prolonged high-volume use. | Ensure proper airflow, check speaker impedance, reduce volume or allow cooling. |
8. Specificazioni
| Feature | Specificazione |
|---|---|
| Numero di mudellu | VADM4v2 |
| Putenza RMS (4 Ohm) | 80W x 4 Canali |
| Putenza RMS (2 Ohm) | 125W x 4 Canali |
| Peak Power | 800 W |
| Numero di canali | 4 |
| Risposta di Frequency | 20 Hz - 20,000 Hz |
| Modi crossover | FULL / HPF / LPF |
| Variable Filters | 40-400 Hz |
| Dimensioni (L x W x H) | 6.49" x 3.3" x 1.48" |
| Voltage | 12 Volts |
| Materiale | Electronic-Grade Circuit Board Material |
| Funzioni spiciali | Marine-grade, 4-way protection circuitry (thermal, overload, speaker short, DC offset) |
Figure 8: The NVX VADM4v2 amplifier is 2-ohm stable, allowing for flexible speaker configurations.
Figure 9: The NVX VADM4v2 features a Pulse Width Modulated (PWM) MOSFET power supply and 4-way protection circuitry for enhanced reliability and performance.
9. Garanzia infurmazione
NVX products are designed and manufactured to the highest quality standards. This product is covered by a limited warranty against defects in materials and workmanship. Please refer to the official NVX websitu o a vostra ducumentazione d'acquistu per i termini è e cundizioni specifiche di garanzia.
10. Supportu
For technical assistance, troubleshooting, or warranty inquiries, please contact NVX customer support through the official NVX websitu o u vostru rivenditore autorizatu.
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