1. Introduktion
The ZAPCO ST-A2 is a powerful 4-channel Class D amplifier designed for car electronics. It delivers 70 watts per channel and features robust protection mechanisms including over-current, over-voltage, and high-temperature protection. This amplifier is built with high-quality components and offers versatile connectivity options, making it a reliable choice for enhancing your vehicle's audio system. It is an Android unit and complies with FCC, IC, CE, ROHS, and WEEE specifications.
2. Produktet er slutview
Figur 2.1: Forside view of the ZAPCO ST-A2 4-Channel Ampløfter, showcasing its compact design and the ZAPCO logo.
The ST-A2 amplifier is designed for efficient power delivery in a compact form factor. Its robust heatsink design ensures optimal thermal management, contributing to its reliability and longevity. The amplifier's sleek black finish allows it to blend seamlessly into various vehicle interiors.
3. Funktioner og funktioner
The ZAPCO ST-A2 amplifier is equipped with a range of features to provide high-quality audio performance and protection:
- Android Unit Class-D Power Amplivligere: Efficient and powerful amplifikation.
- Plug & Play: Designed for easy integration into existing systems.
- 3-Bands Equalization: Allows for fine-tuning of audio output.
- 4 Balanced High-Level Inputs: For connecting to factory or aftermarket head units.
- High-Quality OP: Ensures clear and precise audio reproduction.
- 2 RCA Outputs for AmpLified Subwoofer: Provides dedicated outputs for bass enhancement.
- Over-Current og Over-Voltage Beskyttelse: Beskytter amplifier from electrical surges.
- Beskyttelse ved høj temperatur: Forhindrer skader på grund af overophedning.
Figur 3.1: Øverst view of the ZAPCO ST-A2, showing the HIGH, MID, LOW equalization controls, and the POWER OUT and POWER IN connectors.
Figur 3.2: Side view of the ZAPCO ST-A2, highlighting the RCA outputs for amplified subwoofers.
4. Tekniske specifikationer
| Specifikation | Værdi |
|---|---|
| Udgangseffekt @ 4Ω | 4 x 70 watt |
| Maksimal effekt | 4 x 140 watt |
| THD @ Rated Power | < 0.1 % |
| Signal til støj-forhold | > 85dB |
| Kanaladskillelse | > 70dB |
| Frekvensrespons | 20Hz til 20KHz |
| Maksimal forsyning Voltage | 24 volt (DC) |
| Minimumsforsyning Voltage | 20 volt (DC) |
| Dimensioner (B x H x L) | 103 mm x 45 mm x 151 mm (ca. 4.1 x 1.8 x 6 tommer) |
| Vægt | 5 pund |
| Monteringstype | Frit stående |
5. Opsætning og installation
Proper installation is crucial for optimal performance and safety. It is recommended that installation be performed by a qualified professional. Ensure the vehicle's battery is disconnected before beginning any wiring.
5.1. Monteringssted
Choose a mounting location that is dry, well-ventilated, and away from direct heat sources or moving parts. Ensure there is sufficient space around the amplifier for air circulation. The ST-A2 is designed for freestanding mounting.
5.2. Ledningsforbindelser
- Strømindgang: Connect the main power cable from the vehicle's battery to the amplifier's power input terminal. Ensure an inline fuse is installed close to the battery. The amplifier operates with a maximum supply voltage of 24 Volts DC and a minimum of 20 Volts DC.
- Jordforbindelse: Tilslut jordkablet fra amplifier to a clean, unpainted metal surface on the vehicle's chassis. A strong ground connection is essential for stable operation.
- Input på højt niveau: Utilize the 4 balanced high-level inputs to connect directly to your vehicle's factory or aftermarket head unit speaker outputs. This "Plug & Play" feature simplifies integration.
- Højttalerudgange: Connect your car speakers to the amplifier's speaker output terminals. Ensure correct polarity for each speaker.
- RCA Outputs (for Subwoofer): Hvis du tilføjer en amplified subwoofer, connect its input to the 2 RCA outputs provided on the ST-A2.
After all connections are made, double-check all wiring for secure connections and correct polarity before reconnecting the vehicle's battery.
6. Betjening
Once installed and powered, the ZAPCO ST-A2 amplifier will automatically power on with your head unit. The amplifier is designed for straightforward operation.
6.1. Audio Adjustment
The ST-A2 features 3-bands equalization (HIGH, MID, LOW) to allow for basic audio tuning. Adjust these controls to achieve your desired sound profile. Start with the controls in their neutral or center positions and make small adjustments, listening carefully to the changes in sound.
6.2. Beskyttelsesfunktioner
De amplifier is equipped with built-in protection circuits to ensure its longevity and safe operation:
- Overstrømsbeskyttelse: Automatically shuts down the amplifier if excessive current draw is detected.
- Over-bindtage Beskyttelse: Beskytter amplifier from damage due to voltage pigge.
- Beskyttelse ved høj temperatur: Activates if the amplifier's internal temperature exceeds safe operating limits, preventing thermal damage.
If any protection circuit is activated, the amplifier may temporarily shut down. Allow the unit to cool down or resolve the underlying issue (e.g., short circuit, improper voltage) before attempting to power it on again.
7. Vedligeholdelse
Regular maintenance helps ensure the longevity and optimal performance of your ZAPCO ST-A2 amplivligere.
- Rensning: Tør regelmæssigt af amplifier's exterior with a soft, dry cloth to remove dust and debris. Do not use liquid cleaners or solvents.
- Ventilation: Sørg for, at amplifier's heatsink fins are not obstructed. Good airflow is essential for dissipating heat.
- Forbindelser: Occasionally check all wiring connections to ensure they remain secure and free from corrosion.
- Miljø: Undgå at udsætte amplifier to extreme temperatures, direct sunlight, or excessive moisture.
8. Fejlfinding
If you encounter issues with your ZAPCO ST-A2 amplifer, se følgende almindelige fejlfindingstrin:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen strøm / Amplifer tænder ikke |
|
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| Ingen lydudgang |
|
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| Forvrænget lyd |
|
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If the problem persists after attempting these solutions, contact Zapco customer support or a qualified car audio technician.
9. Garanti og support
The ZAPCO ST-A2 amplifier is manufactured by Zapco. For specific warranty terms and conditions, please refer to the official Zapco webwebstedet eller garantikortet, der fulgte med dit produkt. Gem din købsbevis til garantikrav.
For technical support, service, or further inquiries, please visit the official Zapco website or contact their customer service department. The product meets various international standards including FCC, IC, CE, ROHS, and WEEE specifications.
Note: Product specifications and features are subject to change without notice. Always refer to the latest documentation provided by the manufacturer.
