1. Úvod
Thank you for choosing the Ground Zero GZNA 2800XII 2-Channel Ampzáchranář. Tato příručka obsahuje základní informace pro správnou instalaci, provoz a údržbu vašeho 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. Bezpečnostní pokyny
- Doporučená profesionální instalace: 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.
- Napájení: Ensure the vehicle's electrical system can support the amplifier's power requirements. Incorrect wiring can lead to fire, injury, or damage to the amplifier and vehicle.
- Základy: 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.
- Ochrana pojistek: 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.
- Vyhněte se vlhkosti a teplu: Nevystavujte amplifier to moisture, water, or extreme temperatures. Install it in a dry, well-ventilated area.
- Bezpečná montáž: Namontujte amplifier securely to prevent it from coming loose during sudden stops or accidents.
- Vedení kabelů: Route all cables carefully to avoid pinching, chafing, or interference with vehicle controls. Keep power cables separate from signal cables to minimize noise.
- Úrovně hlasitosti: Dlouhodobé vystavení vysokým úrovním hlasitosti může způsobit poškození sluchu. Hlasitost nastavujte zodpovědně.
3. Konec produktuview
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.

Obrázek 1: Nahoru view of the Ground Zero GZNA 2800XII 2-Channel Ampživější. The 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.

Obrázek 2: Vnitřní 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. Nastavení a instalace
Správná instalace je klíčová pro výkon a dlouhou životnost vašeho amplifier. Always disconnect the vehicle's battery negative terminal before starting any electrical work.
4.1. Místo montáže
- Vyberte suché a dobře větrané místo mimo dosah přímého slunečního záření a zdrojů tepla.
- Zajistěte dostatečné proudění vzduchu kolem amplifier's heatsink fins for proper cooling.
- Namontujte amplifier securely to a solid surface using appropriate hardware.
4.2. Připojení napájení
- 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.
- Ground Cable (GND): Připojte silný zemnící kabel z 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 ampzapínání a vypínání systému Lifelifer pomocí audiosystému vašeho vozu.
4.3. Vstup signálu
- Connect RCA cables from your head unit's pre-out outputs to the ampvstupní konektory RCA zařízení Liferier.
- Ensure proper channel matching (Left to Left, Right to Right).
4.4. Výstup reproduktoru
- Připojte reproduktory k amplifier's speaker output terminals. Observe correct polarity (+ to + and - to -).
- Ujistěte se, že impedance reproduktoru odpovídá amplifier's recommended load.
5. Návod k obsluze
Jednou amplifier is correctly installed, follow these steps for initial setup and operation:
- Počáteční zapnutí: Reconnect the vehicle's battery. Turn on your head unit. The amplifier should power on, indicated by an LED indicator.
- Nastavení zesílení: Začněte s 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 ampvstupní citlivost zesilovače vzhledem k výstupu hlavní jednotky.
- Nastavení přechodu: Upravte 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).
- Jemné doladění: Make small adjustments to the gain and crossover settings to achieve balanced and clear sound.
6. Údržba
The Ground Zero GZNA 2800XII ampZáchranný ventil vyžaduje minimální údržbu, aby byl zajištěn dlouhodobý výkon.
- Čištění: Periodically wipe the exterior of the amplifier with a soft, dry cloth to remove dust. Do not use harsh chemicals or abrasive cleaners.
- Inspekce: Regularly check all wiring connections for tightness and signs of corrosion. Ensure proper ventilation around the ampživější.
- Vyhněte se překážkám: Nepokládejte na něj předměty amplifier that could block airflow to the heatsink.
7. Řešení problémů
Pokud máte problémy s vaším amplifier, viz následující běžné problémy a jejich řešení:
| Problém | Možná příčina | Řešení |
|---|---|---|
| Ampzvlhčovač se nezapne | No power, blown fuse, faulty ground, no remote signal | Check power cable connection, replace fuse, verify ground connection, check remote turn-on wire. |
| Žádný zvukový výstup | No input signal, speaker wires disconnected, gain too low, ampzáchranář v ochranném režimu | Check RCA connections, verify speaker wiring, adjust gain, check for protect light (if lit, refer to manual or contact support). |
| Zkreslený zvuk | 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. Specifikace
The following are the technical specifications for the Ground Zero GZNA 2800XII 2-Channel Ampživější:
| Funkce | Specifikace |
|---|---|
| Číslo modelu | 00113441 |
| ASIN | B003TSD3VI |
| Mezinárodní kód zboží | 04037072004311 |
| Počet kanálů | 2 |
| Maximální výstupní výkon | 2800 wattů |
| Provozní svtage | 14.4 voltů (nominální) |
| Typ montáže | Volné stání |
| Rozměry balení | 70 x 36 x 12 cm (27.5 x 14.2 x 4.7 palce) |
| Hmotnost balení | 5.44 kg (12 lb) |
9. Záruka a podpora
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.





