1. Prodott Aktarview
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 tal- amplifier, highlighting its compact design and NVX branding.
Karatteristiċi ewlenin:
- Prestazzjoni qawwija: 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.
- Disinn kompatt: 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.
- Karatteristiċi Avvanzati: 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. Informazzjoni dwar is-Sigurtà
Dejjem osserva l-prekawzjonijiet ta' sigurtà li ġejjin waqt l-installazzjoni u t-tħaddim:
- Skonnettja l-batterija tal-vettura qabel tibda kwalunkwe xogħol elettriku.
- Żgura ertjar xieraq biex tevita perikli elettriċi.
- Uża wajers ta' daqs xieraq għall-konnessjonijiet tal-enerġija u tal-ispikers.
- Immonta l- ampPoġġi l-lifer sew f'żona ventilata tajjeb biex tevita li jisħon iżżejjed.
- Evita li tesponi l- amplifier to extreme temperatures or direct sunlight.
- Tippruvax tiftaħ jew timmodifika l- amplifier. Refer servicing to qualified personnel.
3. Kontenut tal-Pakkett
Ivverifika li l-oġġetti kollha huma preżenti fil-pakkett:
- NVX VADM4v2 4-Channel Class D Ampaktar ħaj
- Ċineg tal-wajers (Enerġija, Speaker, inputs RCA)
- Ħardwer tal-Immuntar
- Manwal ta' Istruzzjoni

Figure 3: Included wiring harnesses and RCA cables for the NVX VADM4v2 amplifier, facilitating easy connection to your audio system.
4. Setup u Installazzjoni
4.1 Immuntar tal- Ampaktar ħaj
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 ampaktar ħaj.

Figura 4: Ġenb view of the NVX VADM4v2 amplifier, showing its compact profile suitable for various mounting locations.
4.2 Konnessjonijiet tal-Wiring
Refer to the wiring diagrams below for proper connections. Ensure all connections are secure and insulated.

Figura 5: Close-up 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.
- Qawwa (BATTERIJA +12V): Connect to the positive terminal of the vehicle's battery via an appropriate fuse.
- Art (GND): Connect to a solid, clean metal point on the vehicle's chassis.
- Tixgħel mill-Bogħod (REM): Qabbad mal-output remot tal-unità ewlenija tiegħek jew ma' sors ta' 12V li jaħdem bl-ignition-switched.
- Speaker Outputs (CH1-CH4): Connect your speakers to the corresponding channels. Ensure correct polarity and impedance matching (2-4 ohms stable).
- Modalità tad-dħul: 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.
- Input ta' Livell Baxx (RCA): Qabbad il-kejbils RCA mill-pre-outs tal-unità ewlenija tiegħek mal- ampinputs RCA tal-lifier.
- Input ta' Livell Għoli: 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. It-tħaddim tal- Ampaktar ħaj
5.1 Aġġustament tal-gwadann
Adjust the GAIN knobs for each channel to match the output voltage tal-unità ewlenija tiegħek. Ibda bil-qligħ fil-minimu u żid bil-mod sakemm jintlaħaq il-volum mixtieq mingħajr distorsjoni.
5.2 Issettjar tal-Crossover
The VADM4v2 features selectable crossover modes and variable filters:

Figura 7: Dettaljat view of the crossover controls on the NVX VADM4v2 amplifier, including LPF/HPF/FULL switches and variable frequency knobs.
- SĦIĦA: Full-range output, no filtering applied.
- HPF (Filtru Pass Għoli): Allows frequencies above the set point to pass through. Useful for full-range speakers to prevent distortion from low bass.
- LPF (Filtru Low-Pass): 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. Manutenzjoni
To ensure longevity and optimal performance of your NVX VADM4v2 ampaktar ħaj:
- Żomm il- ampIl-lavatur ikun nadif u ħieles mit-trab u l-fdalijiet. Uża drapp artab u niexef għat-tindif.
- Kun żgur li jkun hemm fluss ta' arja adegwat madwar amplifier biex jipprevjeni sħana żejda.
- Iċċekkja regolarment il-konnessjonijiet tal-wajers kollha għal issikkar u korrużjoni.
- Evita li tesponi l- amplifier to harsh chemicals or solvents.
7 Issolvi l-problemi
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| No Power / Protect LED On | Blown fuse, poor power/ground connection, remote wire disconnected. | Check/replace fuse, verify power/ground connections, ensure remote wire is connected and receiving 12V. |
| Ebda Output tal-Ħoss | Incorrect input connections, speaker wires disconnected, gain too low. | Verify RCA/high-level inputs, check speaker connections and polarity, adjust gain settings. |
| Ħoss Mgħawġ | Gain set too high, incorrect crossover settings, speaker impedance mismatch. | Lower gain, adjust crossover filters, ensure speakers match amplifier's impedance rating. |
| AmpTisħin żejjed tal-lifer | Insufficient ventilation, impedance too low, prolonged high-volume use. | Ensure proper airflow, check speaker impedance, reduce volume or allow cooling. |
8. Speċifikazzjonijiet
| Karatteristika | Speċifikazzjoni |
|---|---|
| Numru tal-Mudell | VADM4v2 |
| Qawwa RMS (4 Ohms) | 80W x 4 Channels |
| Qawwa RMS (2 Ohms) | 125W x 4 Channels |
| L-ogħla qawwa | 800W |
| Numru ta 'Kanali | 4 |
| Rispons ta' Frekwenza | 20Hz - 20,000Hz |
| Modi Crossover | FULL / HPF / LPF |
| Variable Filters | 40-400 Hz |
| Dimensjonijiet (L x W x H) | 6.49" x 3.3" x 1.48" |
| Voltage | 12 Volts |
| Materjal | Electronic-Grade Circuit Board Material |
| Karatteristiċi Speċjali | 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. Informazzjoni dwar Garanzija
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 webis-sit jew id-dokumentazzjoni tax-xiri tiegħek għal termini u kundizzjonijiet speċifiċi tal-garanzija.
10. Appoġġ
For technical assistance, troubleshooting, or warranty inquiries, please contact NVX customer support through the official NVX webis-sit jew in-negozjant awtorizzat tiegħek.
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