1. Introducció
This manual provides detailed instructions for the installation, operation, and maintenance of your NVX XAD12 Monoblock Car Audio Amplifier. The XAD12 is a 1500W RMS, 1-Ohm stable, full bridge Class D amplifier designed for high-power car audio applications. Please read this manual thoroughly before attempting installation or operation to ensure proper use and to prevent damage.
2. Informació de seguretat
- Desconnecteu sempre el terminal negatiu de la bateria del vehicle abans de començar qualsevol treball elèctric.
- Ensure all wiring is properly routed and secured to prevent damage from sharp edges or moving parts.
- Utilitzeu un cablejat del calibre adequat per a les connexions d'alimentació i de terra, tal com s'especifica a la secció d'instal·lació.
- Install fuses as close to the battery as possible to protect against short circuits.
- Eviteu muntar el amplificador en llocs exposats a la llum solar directa, a la calor excessiva, a la humitat o a la pols.
- Consulteu un instal·lador professional si teniu dubtes sobre alguna part del procés d'instal·lació.
- Funcionant el amplifier at extreme volumes for extended periods can cause hearing damage.
3. Configuració i instal·lació
Proper installation is crucial for optimal performance and safety. The NVX XAD12 features a Pulse Width Modulated (PWM) MOSFET power supply and soft start turn-on circuitry.
3.1 Muntatge del Ampmés viu
The XAD12 is designed for surface mount installation. Choose a location that provides adequate ventilation and is protected from moisture and direct heat. Ensure there is sufficient space around the ampLificador per a la circulació d'aire.
Figure 3.1: The NVX XAD12 ampvidador, espectacleasing its compact chassis design. This image highlights the overall physical dimensions of the unit.
3.2 Connexions d'alimentació
Connecteu els cables d'alimentació, de terra i d'encesa remota a amplifier's power input terminal block.
- +12V (Alimentació): Connect a heavy-gauge power cable (e.g., 4 AWG or larger for 1500W RMS) directly from the positive terminal of the vehicle's battery. Install an appropriate fuse (not included) within 18 inches of the battery.
- REM IN (Remote Turn-On): Connect a 18-gauge wire from the remote turn-on output of your head unit or other switched 12V source.
- GND (terra): Connect a heavy-gauge ground cable (same gauge as power) to a clean, unpainted metal surface of the vehicle's chassis. Ensure a solid electrical connection.
Figura 3.2: posterior view of the NVX XAD12 amplifier, detailing the power input section with +12V, REM IN, and GND terminals clearly labeled.
3.3 Speaker Output Connection
Connect your subwoofer(s) to the speaker output terminals. The XAD12 is 1-Ohm stable, allowing for flexible wiring configurations. Ensure the total impedance of your connected speakers does not fall below 1 Ohm.
Figure 3.3: The NVX XAD12 amplifier, highlighting its 1-Ohm stable capability. This view shows the input and output connections on the side panel.
3.4 RCA Input/Output Connections
Connect the RCA input cables from your head unit's subwoofer output to the amplifier's INPUT RCA jacks. If daisy-chaining multiple amplifiers, use the OUTPUT RCA jacks to send the signal to the next ampmés viu.
Figura 3.4: superior view of the NVX XAD12 amplifier, illustrating the RCA input and output connections, along with various control knobs for audio adjustment.
3.5 Remote Level Control Connection
Connect the included remote bass level control to the "REMOTE" port on the amplifier. This allows for convenient adjustment of the subwoofer output level from the driver's seat.
Figure 3.5: The included remote bass level control for the NVX XAD12 amplifier, featuring a power indicator and a rotary knob for level adjustment.
Figura 3.6: Detall view of the NVX XAD12 remote bass level control, showing the 'PWR' indicator and the 'MIN' to 'MAX' adjustment dial.
4. Funcionament del Ampmés viu
Once all connections are made and verified, you can power on your system and adjust the ampConfiguració del lifier.
4.1 Engegada inicial i ajust de guany
- Engegueu la unitat principal. El amplifier should power on (indicated by the power LED).
- Estableix el amplifier's GAIN control to its minimum position.
- Play a familiar music track with a strong bass presence at about 75% of your head unit's maximum volume.
- Slowly increase the GAIN control on the amplifier until you hear distortion, then back it off slightly. The POWER/CLIP/PROTECT indicator can assist in setting the gain without clipping.
Figura 4.1: Angle view of the NVX XAD12 amplifier, displaying the various control knobs including Subsonic, LPF, Gain, and Bass Boost, along with the input/output terminals.
4.2 Crossover and Bass Boost Adjustments
- LPF (filtre de pas baix): Adjust this control to filter out high frequencies from your subwoofer. A common starting point is 80-100 Hz.
- Filtre SUBSONIC: This filter removes extremely low frequencies that are below the audible range and can cause damage to your subwoofer. Set it slightly below your subwoofer's port tuning frequency or around 20-30 Hz.
- INTENSIFICACIÓ DELS SONS MÉS GREUS: Use this control sparingly to enhance bass output. Excessive bass boost can lead to distortion and potential speaker damage. Start at 0dB and increase gradually if desired.
Figura 4.2: superior view of the NVX XAD12 amplifier, providing a clear look at the Subsonic, LPF, Gain, and Bass Boost controls, along with the POWER/CLIP/PROTECT indicators.
5. Manteniment
- Neteja: Utilitzeu un drap suau i sec per netejar-lo ampl'exterior del purificador. No utilitzeu productes químics agressius ni netejadors abrasius.
- Ventilació: Assegureu-vos el amplifier's cooling fins are free from obstructions to maintain proper airflow. Periodically check for dust buildup.
- Connexions: Periodically inspect all power, ground, speaker, and RCA connections to ensure they are secure and free from corrosion.
6. Solució De Problemes
Si tens problemes amb el teu amplificador, consulteu la guia de resolució de problemes següent:
| Problema | Causa possible | Solució |
|---|---|---|
| Sense energia / Sense so | Fusible fundit; Cable d'alimentació/terra/control remot solt; Sortida del control remot de la unitat principal defectuosa. | Check and replace fuse; Verify all power, ground, and remote connections; Test head unit remote output. |
| So distorsionat | Gain set too high; Improper crossover settings; Speaker impedance too low. | Reduce gain; Adjust LPF/Subsonic filters; Verify speaker impedance is 1 Ohm or higher. |
| Amplifier Goes into Protection Mode (Protect LED on) | Sobreescalfament; Curtcircuit de l'altaveu; Impedància de l'altaveu massa baixa; Desplaçament de CC. | Assegureu-vos de ventilar correctament; comproveu si hi ha curtcircuits al cablejat de l'altaveu; verifiqueu la impedància de l'altaveu; consulteu un professional. |
| No hi ha greus del subwoofer | RCA cables disconnected; LPF set too low; Subwoofer wired out of phase. | Check RCA connections; Adjust LPF to appropriate frequency; Verify subwoofer wiring phase. |
7. Especificacions
| Característica | Especificació |
|---|---|
| Model | NVX XAD12 |
| Potència de sortida (RMS) | 1500 watts |
| Canals | 1 (Monobloc) |
| Minimum Stable Impedance | 1 ohms |
| AmpClasse lifier | Class D (Full Bridge) |
| Font d'alimentació | Pulse Width Modulated MOSFET |
| Resposta de freqüència | 10 - 300 Hz |
| Volum de subministrament màximtage | 14 Volts |
| Dimensions (L x L x A) | 6"W x 8.75"L x 2.5"H |
| Tipus de muntatge | Muntatge en superfície |
| Especificació Met | Conforme a la CEA-2006 |
8. Informació de la garantia
NVX products are designed and manufactured to the highest quality standards. For specific warranty terms and conditions, please refer to the official NVX weblloc web o la targeta de garantia inclosa amb el producte. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.
9. Atenció al client
If you have any questions or require assistance with your NVX XAD12 amplifier, please contact NVX customer support through their official website or authorized dealer. Provide your product model number (XAD12) and purchase details when seeking support.