PROEL DBA1CH Active Direct Box User Manual

1. Sarrera

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. Segurtasun informazioa

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

• Energia iturria: 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.
• Bateriaren instalazioa: When installing batteries, ensure correct polarity. Remove batteries if the unit will not be used for an extended period to prevent leakage.
• Ingurumena: Do not expose the unit to rain, moisture, extreme temperatures, or direct sunlight. Operate in a dry, well-ventilated area.
• Zerbitzua: Ez saiatu unitate hau zeuk konpontzen. Konponketa guztiak zerbitzu-langile kualifikatuei eskatu.
• Garbiketa: Oihal lehor batekin bakarrik garbitu. Ez erabili garbitzaile likidorik edo aerosolik.

3. Produktua amaitu daview

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 Aurrealdeko panelaren ezaugarriak

• 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 ampbiziagoa.
• Unbalanced Output (6.3mm Jack): An additional unbalanced output.
• Irteera orekatua (XLR): Balanced low-impedance output for connecting to a mixer or audio interface.
• PAD etengailua: Attenuates the input signal by +20dB to prevent clipping when connecting high-output sources.
• GND ALTXATZEKO etengailua: Disconnects the ground connection between the input and output to eliminate hum and ground loops.
• Potentzia adierazle LED: Unitatea pizten denean pizten da.

4. Konfigurazioa

4.1 Unitatea piztea

The DBA1CH can be powered in three ways:

1. 9V-ko bateriak: 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. +48V Phantom Power: If connected to a mixer with phantom power, the unit will automatically draw power from the XLR output.

4.2 Oinarrizko konexioa

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. (Aukerakoa) Konektatu Esteken irteera to your instrument amplifier if you wish to monitor your sound on stage.
3. Konektatu 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. Funtzionamendu-argibideak

5.1 PAD Switch Usage

The PAD 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

The GND IGOGAILUA 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. Mantentzea

• Garbiketa: Erabili zapi leun eta lehor bat unitatearen kanpoaldea garbitzeko. Ez erabili garbitzaile urratzailerik, disolbatzailerik edo argizaririk.
• Bateria ordezkatzea: 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.
• Biltegiratzea: 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. Arazoak

8. Zehaztapenak

• Eredua: PROEL DBA1CH
• Mota: Zuzeneko kutxa aktiboa
• Sarrerak: 1 x 6.3mm mono jack (unbalanced)
• Irteerak: 1 x 6.3mm mono jack (Link), 1 x 6.3mm mono jack (Unbalanced), 1 x XLR (Balanced)
• Kontrolak: PAD (+20dB attenuation), GND LIFT
• Potentzia aukerak: 2 x 9V batteries (not included), 12Vdc adapter (not included), +48V Phantom Power
• Pisua: Gutxi gorabehera 250 g
• Fabrikatzailea: PROEL

9. Bermea eta Laguntza

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 webgunea. Gorde erosketa-agiria erosketaren frogagiri gisa, berme-erreklamazioetarako.

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