1. પરિચય
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. સલામતી માહિતી
Please read and understand all safety instructions before operating the DBA1CH. Retain this manual for future reference.
- પાવર સ્ત્રોત: 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.
- બેટરી ઇન્સ્ટોલેશન: When installing batteries, ensure correct polarity. Remove batteries if the unit will not be used for an extended period to prevent leakage.
- પર્યાવરણ: Do not expose the unit to rain, moisture, extreme temperatures, or direct sunlight. Operate in a dry, well-ventilated area.
- સર્વિસિંગ: આ યુનિટની જાતે સેવા આપવાનો પ્રયાસ કરશો નહીં. બધી સેવા લાયક સેવા કર્મચારીઓને સોંપો.
- સફાઈ: ફક્ત સૂકા કપડાથી જ સાફ કરો. પ્રવાહી ક્લીનર્સ અથવા એરોસોલ્સનો ઉપયોગ કરશો નહીં.
3. ઉત્પાદન ઓવરview
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 ફ્રન્ટ પેનલ સુવિધાઓ
- 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 ampજીવંત
- Unbalanced Output (6.3mm Jack): An additional unbalanced output.
- Balanced Output (XLR): Balanced low-impedance output for connecting to a mixer or audio interface.
- PAD સ્વિચ: Attenuates the input signal by +20dB to prevent clipping when connecting high-output sources.
- GND LIFT Switch: Disconnects the ground connection between the input and output to eliminate hum and ground loops.
- પાવર સૂચક એલઇડી: જ્યારે યુનિટ ચાલુ હોય ત્યારે પ્રકાશિત થાય છે.
4. સેટઅપ
૩.૧ યુનિટને પાવર આપવો
The DBA1CH can be powered in three ways:
- 9V બેટરી: Insert two 9V batteries into the battery compartments, ensuring correct polarity. (Batteries not included).
- 12Vdc Adapter: Connect a compatible 12Vdc power adapter (not included) to the DC input jack.
- +48V ફેન્ટમ પાવર: If connected to a mixer with phantom power, the unit will automatically draw power from the XLR output.
4.2 મૂળભૂત જોડાણ
Follow these steps for a typical setup:
- Connect your instrument (e.g., guitar, bass, keyboard) to the DBA1CH Input using a 6.3mm mono jack cable.
- (વૈકલ્પિક) કનેક્ટ કરો લિંક આઉટપુટ to your instrument amplifier if you wish to monitor your sound on stage.
- કનેક્ટ કરો Balanced Output (XLR) to a microphone input on your mixing console or audio interface using an XLR cable.
- Ensure the mixer's phantom power is enabled for the corresponding channel if you are using phantom power.
5. ઓપરેટિંગ સૂચનાઓ
5.1 PAD Switch Usage
આ 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
આ જીએનડી લિફ્ટ 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. જાળવણી
- સફાઈ: યુનિટના બાહ્ય ભાગને સાફ કરવા માટે નરમ, સૂકા કપડાનો ઉપયોગ કરો. ઘર્ષક ક્લીનર્સ, સોલવન્ટ્સ અથવા મીણનો ઉપયોગ કરશો નહીં.
- બેટરી રિપ્લેસમેન્ટ: 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.
- સંગ્રહ: 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. મુશ્કેલીનિવારણ
| સમસ્યા | સંભવિત કારણ | ઉકેલ |
|---|---|---|
| કોઈ ધ્વનિ આઉટપુટ નથી. | No power; incorrect connections; faulty cables. | Check battery power or phantom power. Verify all cables are securely connected. Test with different cables. |
| ગુંજારવ કે ગુંજારવનો અવાજ. | Ground loop; faulty cable; interference. | રોકાયેલા જીએનડી લિફ્ટ switch. Try different cables. Ensure power sources are properly grounded. |
| વિકૃત અવાજ. | Input signal too hot; faulty unit. | રોકાયેલા PAD switch. Reduce the output level of the source instrument. If distortion persists, the unit may require service. |
| Power LED not illuminating. | No power; dead batteries; no phantom power. | Check battery installation and charge. Ensure phantom power is active on the mixer. Verify 12Vdc adapter connection if used. |
8. સ્પષ્ટીકરણો
- મોડલ: PROEL DBA1CH
- પ્રકાર: સક્રિય ડાયરેક્ટ બોક્સ
- ઇનપુટ્સ: 1 x 6.3mm mono jack (unbalanced)
- આઉટપુટ: 1 x 6.3mm mono jack (Link), 1 x 6.3mm mono jack (Unbalanced), 1 x XLR (Balanced)
- નિયંત્રણો: PAD (+20dB attenuation), GND LIFT
- પાવર વિકલ્પો: 2 x 9V batteries (not included), 12Vdc adapter (not included), +48V Phantom Power
- વજન: આશરે 250 ગ્રામ
- ઉત્પાદક: PROEL
9. વોરંટી અને સપોર્ટ
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 webસાઇટ. કોઈપણ વોરંટી દાવા માટે ખરીદીના પુરાવા તરીકે તમારી ખરીદી રસીદ રાખો.
For further assistance, please contact PROEL customer service or your authorized dealer.
