Gravity 1000.4 Class AB Car AmpManual de usuario máis vivo

1. Introdución

Thank you for choosing the Gravity 1000.4 Class AB Car Amplificador. Isto amplifier is designed to enhance your car audio system with powerful and clear sound reproduction. This manual provides essential information for proper installation, operation, and maintenance of your amplifier. Please read it thoroughly before installation and use to ensure optimal performance and safety.

2. Información de seguridade

Observe sempre as seguintes precaucións de seguridade durante a instalación e o funcionamento:

• Instalación profesional recomendada: Car audio system installation requires experience with electrical wiring and automotive systems. If you are unsure, consult a qualified professional.
• Desconectar batería: Before starting any wiring, disconnect the vehicle's negative battery terminal to prevent electrical shorts and damage.
• Cableado adecuado: Use appropriate gauge wiring for power, ground, and speaker connections as specified in this manual. Incorrect wiring can cause overheating, fire, or damage to the amplifier and vehicle.
• Protección por fusibles: Always use the correct fuse rating for the amplifier. Never replace a fuse with one of a higher rating.
• Ventilación: Asegurar o amplifier is mounted in a location with adequate ventilation to prevent overheating. Do not cover the amplifier or mount it in an enclosed space without airflow.
• Evitar a humidade: Non expoña o ampsobrevivente á humidade ou á auga.
• Montaxe segura: Monte o amplifier securely to prevent it from coming loose during vehicle movement, which could cause injury or damage.

3. Produto rematadoview

The Gravity 1000.4 is a 4-channel Class AB amplifier designed for versatility and performance. It features a MOSFET power supply for stable operation and is capable of driving speakers or subwoofers with 1000 Watts maximum power output.

Características principais:

• 1000W Max 4-Channel Class A/B Ampmáis vivo
• Stable at 2 Ohm and 4 Ohm loads
• Signal-to-Noise Ratio (S/N) > 80 dB
• Resposta de frecuencia: 20 Hz ~ 20 kHz
• Total Harmonic Distortion (THD) < 0.5%
• Variable Bass Boost: 0 ~ 12 dB
• Variable Low Pass Filter (LPF): 50 Hz ~ 500 Hz
• Variable High Pass Filter (HPF): 50 Hz ~ 1.2 kHz
• Subsonic Filter: 0 ~ 50 Hz
• High and Low Level Inputs
• Dimensions (L×W×H): 223.5mm (8.8 in) × 211mm (8.3 in) × 64.5 mm (2.5 in)

Identificación de compoñentes:

Figura 3.1: Arriba view of the Gravity 1000.4 amplifier, showing the overall design and branding.

Figura 3.2: Input and control panel of the amplifier, featuring RCA inputs, gain controls, crossover settings (LPF, HPF), and bass boost.

Figura 3.3: Power and speaker terminal side of the amplifier, showing connections for +12V, REM, GND, and speaker outputs for channels 1-4, along with fuse slots.

Figura 3.4: Included remote bass knob, allowing convenient adjustment of bass levels from the driver's seat.

Figura 3.5: Example of a 4-gauge, 4-channel amplifier installation kit, typically including power wire, ground wire, remote wire, RCA cables, speaker wire, fuse holder, and terminals.

4. Instalación

Careful installation is crucial for the performance and longevity of your amplifier. Follow these steps for a successful setup.

4.1 Localización de montaxe

• Escolle un lugar seco e ben ventilado, lonxe da luz solar directa e de fontes de calor.
• Ensure the mounting surface is sturdy enough to support the amppeso do viveiro.
• Common locations include under a seat, in the trunk, or mounted to a custom ampbastidor lifier.
• Allow at least 2 inches (5 cm) of space around the amplifier para un fluxo de aire adecuado.

4.2 Conexións de cableado

Antes de facer calquera conexión, asegúrese de que o terminal negativo da batería do vehículo estea desconectado.

4.2.1 Power Wiring (+12V)

1. Run a heavy-gauge power cable (e.g., 4-gauge, as shown in Figure 3.5) directly from the positive terminal of the car battery to the amplifier's +12V terminal (see Figure 3.3).
2. Install an in-line fuse holder (included in the wiring kit, Figure 3.5) within 18 inches (45 cm) of the battery. The fuse rating should match the amplifier's requirements (e.g., 35A x 2 for this model).
3. Asegúrese de que todas as conexións estean seguras e libres de corrosión.

4.2.2 Ground Wiring (GND)

1. Connect a heavy-gauge ground cable (e.g., 4-gauge) from the amplifier's GND terminal (see Figure 3.3) to a clean, unpainted metal surface on the vehicle chassis.
2. O cable de terra debe ser o máis curto posible, idealmente menos de 3 pés (1 metro).
3. Scrape away any paint or rust from the chassis connection point to ensure a good electrical contact.

4.2.3 Remote Turn-On Wiring (REM)

1. Connect a smaller gauge wire (e.g., 18-gauge) from the amplifier's REM terminal (see Figure 3.3) to the remote output of your car's head unit.
2. Este fío sinala o ampactivar o activador cando a unidade principal estea activada.

4.2.4 Cableado de altofalantes

1. Conecta os teus altofalantes ao amplifier's speaker terminals (FRONT CH1/CH2, REAR CH3/CH4) (see Figure 3.3).
2. Ensure correct polarity (+ to + and - to -) for each speaker. Incorrect polarity can lead to poor sound quality.
3. O amplifier is 2/4 Ohm stable. Ensure your speaker impedance matches the ampcapacidades do lifier.

4.2.5 Input Connections (RCA / High-Level)

• Entrada de baixo nivel (RCA): If your head unit has RCA pre-outs, connect RCA cables from the head unit's front and rear outputs to the amplifier's INPUT CH1/CH2 (FRONT) and CH3/CH4 (REAR) RCA inputs (see Figure 3.2).
• Entrada de alto nivel: If your head unit does not have RCA pre-outs, use the high-level input feature. Connect the speaker wires from your head unit directly to the amplifier's high-level input terminals (if available, consult specific model diagram).

4.2.6 Remote Bass Knob Connection

1. Connect the remote bass knob cable (Figure 3.4) to the dedicated REMOTE BASS input on the amplifier (ver Figura 3.2).
2. Mount the bass knob in a convenient location for easy access while driving.

5. Instrucións de funcionamento

Unha vez instalado, axuste o ampaxustes do lifter para un rendemento sonoro óptimo.

5.1 Control de ganancia (nivel de entrada)

• The GAIN control (see Figure 3.2) matches the ampa sensibilidade de entrada do adaptador ao nivel de saída da unidade principal.
• To set: Turn the amplifier gain to minimum. Turn your head unit volume to about 75% of maximum. Slowly increase the amplifier gain until you hear slight distortion, then back off slightly.
• Nota: Gain is not a volume control. Setting it too high can cause distortion and damage to speakers.

5.2 Crossover Settings (LPF, HPF)

O amplifier features variable Low Pass Filter (LPF) and High Pass Filter (HPF) controls (see Figure 3.2) to direct specific frequency ranges to your speakers or subwoofers.

• LPF (filtro paso baixo): Permite frecuencias abaixo the set point to pass through. Use for subwoofers (typically 50 Hz - 120 Hz).
• HPF (filtro paso alto): Permite frecuencias arriba the set point to pass through. Use for full-range speakers or tweeters (typically 80 Hz - 200 Hz).
• Axusta esta configuración segundo os tipos de altofalantes e o profesional de son desexadofile.

5.3 Reforzo de graves

• The BASS BOOST control (see Figure 3.2) allows you to increase the bass output at a specific frequency.
• Adjust sparingly to avoid distortion and potential speaker damage.
• The remote bass knob (Figure 3.4) provides convenient adjustment of this feature.

5.4 Filtro subsónico

• The SUBSONIC FILTER (see Figure 3.2) removes extremely low frequencies that are inaudible but can waste amplifier power and potentially damage subwoofers.
• Typically set between 20 Hz and 30 Hz for most subwoofer applications.

6. Mantemento

Un mantemento regular axuda a garantir a lonxevidade e o rendemento do seu ampmáis vivo.

• Limpeza: Limpar periodicamente o ampo exterior do lifador cun pano suave e seco. Non empregue produtos químicos agresivos nin produtos de limpeza abrasivos.
• Ventilación: Ensure the cooling fins and ventilation openings remain clear of dust and debris. Use compressed air to gently clear any blockages.
• Conexións: Comprobe ocasionalmente todas as conexións de alimentación, terra e altofalantes para asegurarse de que estean seguras e libres de corrosión.
• Fusibles: If a fuse blows, replace it only with a fuse of the exact same type and rating. Repeated fuse blowing indicates a problem that needs to be diagnosed.

7 Solución de problemas

Se tes problemas co teu amplifier, consulte os seguintes problemas e solucións comúns:

8. Especificacións

9. Garantía e soporte

For warranty information or technical support, please refer to the documentation included with your purchase or contact Gravity customer service. Keep your proof of purchase for warranty claims.