Manual del usuario de la caja directa activa PROEL DBA1CH

1. Introducción

Thank you for choosing the PROEL DBA1CH Active Direct Box. This manual provides essential information for the safe and efficient operation of your device. The DBA1CH is designed to convert unbalanced, high-impedance instrument signals into balanced, low-impedance signals suitable for direct connection to mixing consoles or audio interfaces, minimizing noise and signal degradation over long cable runs.

2. Información de seguridad

Please read and understand all safety instructions before operating the DBA1CH. Retain this manual for future reference.

• Fuente de energía: The unit can be powered by two internal 9V batteries, a 12Vdc adapter (not included), or +48V Phantom Power from a connected mixer. Ensure the correct power source is used.
• Instalación de la batería: When installing batteries, ensure correct polarity. Remove batteries if the unit will not be used for an extended period to prevent leakage.
• Ambiente: Do not expose the unit to rain, moisture, extreme temperatures, or direct sunlight. Operate in a dry, well-ventilated area.
• Servicio: No intente reparar esta unidad usted mismo. Encargue cualquier reparación a personal técnico cualificado.
• Limpieza: Limpie únicamente con un paño seco. No utilice limpiadores líquidos ni aerosoles.

3. Producto terminadoview

The PROEL DBA1CH is an active direct box designed for robust performance and signal integrity.

Figure 1: Front Panel Layout of the PROEL DBA1CH Active Direct Box. This image displays the various input and output jacks, including the DBA1CH Input, Link, Unbalanced Output, and Balanced Output (XLR). It also shows the PAD and GND LIFT switches, and the power indicator LED.

3.1 Características del panel frontal

• DBA1CH Input (6.3mm Jack): Unbalanced input for connecting instruments or line-level sources.
• Link Output (6.3mm Jack): Parallel output of the input signal, typically used to feed an instrument ampmás duradero.
• Unbalanced Output (6.3mm Jack): An additional unbalanced output.
• Salida balanceada (XLR): Balanced low-impedance output for connecting to a mixer or audio interface.
• Interruptor de ALMOHADILLA: Attenuates the input signal by +20dB to prevent clipping when connecting high-output sources.
• Interruptor GND LIFT: Disconnects the ground connection between the input and output to eliminate hum and ground loops.
• LED indicador de encendido: Se ilumina cuando la unidad está encendida.

4. Configuración

4.1 Encendido de la unidad

The DBA1CH can be powered in three ways:

1. Baterías de 9 V: Insert two 9V batteries into the battery compartments, ensuring correct polarity. (Batteries not included).
2. 12Vdc Adapter: Connect a compatible 12Vdc power adapter (not included) to the DC input jack.
3. Alimentación fantasma de +48 V: If connected to a mixer with phantom power, the unit will automatically draw power from the XLR output.

4.2 Conexión básica

Follow these steps for a typical setup:

1. Connect your instrument (e.g., guitar, bass, keyboard) to the DBA1CH Input using a 6.3mm mono jack cable.
2. (Opcional) Conecte el Salida de enlace to your instrument amplifier if you wish to monitor your sound on stage.
3. Conectar el Balanced Output (XLR) to a microphone input on your mixing console or audio interface using an XLR cable.
4. Ensure the mixer's phantom power is enabled for the corresponding channel if you are using phantom power.

5. Instrucciones de funcionamiento

5.1 PAD Switch Usage

El ALMOHADILLA switch is used to attenuate the input signal by +20dB. Engage this switch if you are connecting a high-output source (e.g., active bass, keyboard, or line-level output) and notice distortion or clipping at the mixer input. For most passive instruments, leave the PAD switch in the "Normal" (off) position.

5.2 GND LIFT Switch Usage

El Elevador de tierra switch helps eliminate hum or buzzing noises caused by ground loops. If you hear unwanted noise in your audio signal, try engaging this switch. If the noise persists or worsens, return the switch to its original position.

6. Mantenimiento

• Limpieza: Utilice un paño suave y seco para limpiar el exterior de la unidad. No utilice limpiadores abrasivos, disolventes ni ceras.
• Reemplazo de batería: If using battery power, replace batteries when the power indicator LED dims or the audio signal becomes weak or distorted. Always replace both 9V batteries simultaneously.
• Almacenamiento: When not in use, store the unit in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries.

7. Solución de problemas

8. Especificaciones

• Modelo: PROEL DBA1CH
• Tipo: Caja directa activa
• Entradas: 1 x 6.3mm mono jack (unbalanced)
• Salidas: 1 x 6.3mm mono jack (Link), 1 x 6.3mm mono jack (Unbalanced), 1 x XLR (Balanced)
• Controles: PAD (+20dB attenuation), GND LIFT
• Opciones de energía: 2 x 9V batteries (not included), 12Vdc adapter (not included), +48V Phantom Power
• Peso: Aproximadamente 250 g
• Fabricante: PROEL

9. Garantía y soporte

PROEL products are designed and manufactured to the highest quality standards. For warranty information and technical support, please refer to the warranty card included with your product or visit the official PROEL webSitio. Conserve su recibo de compra como comprobante de compra para cualquier reclamación de garantía.

For further assistance, please contact PROEL customer service or your authorized dealer.