1. Introducció
Thank you for choosing the Ground Zero GZNA 2800XII 2-Channel Amplificador. Aquest manual proporciona informació essencial per a la instal·lació, el funcionament i el manteniment adequats del vostre amplifier. To ensure optimal performance and safety, please read these instructions thoroughly before attempting to install or operate the unit. Keep this manual for future reference.
2. Instruccions de seguretat
- Instal·lació professional recomanada: Due to the complexity of car audio systems and the high power output of this amplifier, professional installation by a qualified technician is strongly recommended.
- Font d'alimentació: Assegureu-vos que el sistema elèctric del vehicle pugui suportar amplifier's power requirements. Incorrect wiring can lead to fire, injury, or damage to the ampvidador i vehicle.
- Posada a terra: Always connect the ground terminal securely to a clean, unpainted metal surface of the vehicle chassis. A poor ground connection can cause noise or malfunction.
- Protecció de fusibles: Install an appropriate fuse (not supplied) on the power cable as close to the vehicle battery as possible. Refer to the specifications for recommended fuse ratings.
- Eviteu la humitat i la calor: No exposar el amplifier to moisture, water, or extreme temperatures. Install it in a dry, well-ventilated area.
- Muntatge segur: Muntar el amplifier securely to prevent it from coming loose during sudden stops or accidents.
- Encaminament de cables: Route all cables carefully to avoid pinching, chafing, or interference with vehicle controls. Keep power cables separate from signal cables to minimize noise.
- Nivells de volum: Prolonged exposure to high volume levels can cause hearing damage. Adjust volume responsibly.
3. Producte acabatview
The Ground Zero GZNA 2800XII is a high-performance 2-channel amplifier designed for car audio applications, capable of delivering up to 2800 Watts of maximum power. Its robust design ensures reliable operation and excellent sound reproduction.

Figura 1: A dalt view of the Ground Zero GZNA 2800XII 2-Channel Amplificador. El amplifier features a dark blue top panel with the 'GROUND ZERO NUCLEAR HIGH POWER AMPLIFIER' logo, and silver-colored heatsink fins on the sides. A small, separate black power module is visible in the upper left corner, indicating a robust power supply design.

Figura 2: Interna view of the Ground Zero GZNA 2800XII amplifier with the top cover removed, revealing the circuit board. The orange PCB is densely populated with high-quality components, including large toroidal transformers, numerous capacitors, and power transistors, indicating a high-current, high-power design for stable and efficient operation.
4. Configuració i instal·lació
Una instal·lació correcta és crucial per al rendiment i la longevitat del vostre amplifier. Always disconnect the vehicle's battery negative terminal before starting any electrical work.
4.1. Ubicació de muntatge
- Trieu un lloc sec i ben ventilat, allunyat de la llum solar directa i de fonts de calor.
- Assegureu-vos que hi hagi prou aire al voltant de amplifier's heatsink fins for proper cooling.
- Muntar el amplifier securely to a solid surface using appropriate hardware.
4.2. Connexions d'alimentació
- Power Cable (B+): Run a heavy-gauge power cable directly from the positive terminal of the vehicle's battery to the amplifier's B+ terminal. Install an in-line fuse holder with an appropriate fuse (refer to specifications) within 18 inches (45 cm) of the battery.
- Cable de terra (GND): Connect a heavy-gauge ground cable from the amplifier's GND terminal to a clean, unpainted metal point on the vehicle chassis. The ground cable should be as short as possible, ideally less than 3 feet (1 meter).
- Remote Turn-On Cable (REM): Connect a smaller gauge wire from the amplifier's REM terminal to the remote turn-on output of your head unit. This signal turns the ampengegar i apagar el lifer amb el sistema d'àudio del cotxe.
4.3. Entrada de senyal
- Connect RCA cables from your head unit's pre-out outputs to the ampels conectors d'entrada RCA del lificador.
- Ensure proper channel matching (Left to Left, Right to Right).
4.4. Sortida dels altaveus
- Connecteu els vostres altaveus al amplifier's speaker output terminals. Observe correct polarity (+ to + and - to -).
- Ensure the speaker impedance matches the amplifier's recommended load.
5. Instruccions de funcionament
Un cop el amplifier is correctly installed, follow these steps for initial setup and operation:
- Engegada inicial: Reconnect the vehicle's battery. Turn on your head unit. The amplifier should power on, indicated by an LED indicator.
- Configuració de guany: Comença amb el amplifier's gain control set to minimum. Play a familiar piece of music at a moderate volume on your head unit. Slowly increase the amplifier's gain until you hear distortion, then back off slightly. The gain control is not a volume control; it matches the ampla sensibilitat d'entrada del lificador a la sortida de la unitat principal.
- Configuració de crossover: Ajusteu el amplifier's crossover filters (if available) according to your speaker type and system configuration. For subwoofers, use a Low-Pass Filter (LPF). For full-range speakers, use a High-Pass Filter (HPF).
- Afinació: Make small adjustments to the gain and crossover settings to achieve balanced and clear sound.
6. Manteniment
The Ground Zero GZNA 2800XII ampEl lificador requereix un manteniment mínim per garantir un rendiment a llarg termini.
- Neteja: Netegeu periòdicament l'exterior de la amplifier with a soft, dry cloth to remove dust. Do not use harsh chemicals or abrasive cleaners.
- Inspecció: Regularly check all wiring connections for tightness and signs of corrosion. Ensure proper ventilation around the ampmés viu.
- Eviteu les obstruccions: No col·loqueu objectes a sobre amplifier that could block airflow to the heatsink.
7. Solució De Problemes
Si teniu problemes amb el vostre amplifier, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| Ampel lifier no s'encén | No power, blown fuse, faulty ground, no remote signal | Check power cable connection, replace fuse, verify ground connection, check remote turn-on wire. |
| Sense sortida de so | No input signal, speaker wires disconnected, gain too low, amplificador en mode de protecció | Check RCA connections, verify speaker wiring, adjust gain, check for protect light (if lit, refer to manual or contact support). |
| So distorsionat | Gain set too high, poor ground, damaged speakers, incorrect crossover settings | Reduce gain, improve ground connection, inspect speakers, adjust crossover settings. |
| Excessive noise (hiss, whine) | Poor grounding, signal cable interference, faulty RCA cables | Ensure solid ground connection, route signal cables away from power cables, try different RCA cables. |
If the problem persists after attempting these solutions, please contact Ground Zero customer support or a qualified car audio technician.
8. Especificacions
The following are the technical specifications for the Ground Zero GZNA 2800XII 2-Channel Ampmés viu:
| Característica | Especificació |
|---|---|
| Número de model | 00113441 |
| ASIN | B003TSD3VI |
| Codi Internacional de l'Article | 04037072004311 |
| Nombre de canals | 2 |
| Potència de sortida màxima | 2800 watts |
| Vol. Operatiutage | 14.4 volts (nominals) |
| Tipus de muntatge | Autònom |
| Dimensions del paquet | 70 x 36 x 12 cm (27.5 x 14.2 x 4.7 polzades) |
| Pes del paquet | 5.44 kg (12 lliures) |
9. Garantia i Suport
Ground Zero products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your product or visit the official Ground Zero website. In case of technical issues or questions not covered in this manual, please contact your authorized Ground Zero dealer or customer support for assistance.





