PROEL DBA1CH
PROEL DBA1CH ايڪٽو ڊائريڪٽ باڪس يوزر مينوئل
Model: DBA1CH
1. تعارف
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. حفاظت جي ڄاڻ
Please read and understand all safety instructions before operating the DBA1CH. Retain this manual for future reference.
- طاقت جو ذريعو: 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.
- بيٽري لڳائڻ: When installing batteries, ensure correct polarity. Remove batteries if the unit will not be used for an extended period to prevent leakage.
- ماحول: Do not expose the unit to rain, moisture, extreme temperatures, or direct sunlight. Operate in a dry, well-ventilated area.
- خدمت ڪرڻ: هن يونٽ جي پاڻ خدمت ڪرڻ جي ڪوشش نه ڪريو. سڀني خدمتن کي قابل خدمت اهلڪارن جي حوالي ڪريو.
- صفائي: صرف سڪل ڪپڙي سان صاف ڪريو. مائع صاف ڪندڙ يا ايروسول استعمال نه ڪريو.
3. پراڊڪٽ ختمview
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 فرنٽ پينل جون خاصيتون
- 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 ampوierيڪ زنده
- Unbalanced Output (6.3mm Jack): An additional unbalanced output.
- متوازن پيداوار (XLR): Balanced low-impedance output for connecting to a mixer or audio interface.
- PAD سوئچ: Attenuates the input signal by +20dB to prevent clipping when connecting high-output sources.
- GND لفٽ سوئچ: Disconnects the ground connection between the input and output to eliminate hum and ground loops.
- پاور اشارو LED: روشني ٿئي ٿي جڏهن يونٽ هلايو ويندو آهي.
4. سيٽ اپ
4.1 يونٽ کي طاقت ڏيڻ
The DBA1CH can be powered in three ways:
- 9V بيٽريون: 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 پريتم پاور: If connected to a mixer with phantom power, the unit will automatically draw power from the XLR output.
4.2 بنيادي ڪنيڪشن
Follow these steps for a typical setup:
- پنهنجي ساز (مثال طور، گٽار، باس، ڪي بورڊ) کي DBA1CH Input using a 6.3mm mono jack cable.
- (اختياري) ڳنڍيو لنڪ آئوٽ to your instrument amplifier if you wish to monitor your sound on stage.
- ڳنڍيو 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. آپريٽنگ هدايتون
5.1 PAD Switch Usage
جي پي اي ڊي 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
جي جي اين ڊي لفٽ 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. سار سنڀال
- صفائي: Use a soft, dry cloth to clean the exterior of the unit. Do not use abrasive cleaners, solvents, or waxes.
- بيٽري مٽائڻ: 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.
- اسٽوريج: 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. مسئلا حل ڪرڻ
| مسئلو | ممڪن سبب | حل |
|---|---|---|
| ڪوبه آواز ٻاھر نه. | No power; incorrect connections; faulty cables. | Check battery power or phantom power. Verify all cables are securely connected. Test with different cables. |
| گونجڻ يا ڀُڻ ڀُڻ جو آواز. | گرائونڊ لوپ؛ ناقص ڪيبل؛ مداخلت. | مشغول ڪريو جي اين ڊي لفٽ switch. Try different cables. Ensure power sources are properly grounded. |
| بگڙيل آواز. | Input signal too hot; faulty unit. | مشغول ڪريو پي اي ڊي 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. وضاحتون
- ماڊل: PROEL DBA1CH
- قسم: فعال سڌو باڪس
- داخلائون: 1 x 6.3mm mono jack (unbalanced)
- آئوٽ پُٽ: 1 x 6.3mm mono jack (Link), 1 x 6.3mm mono jack (Unbalanced), 1 x XLR (Balanced)
- ڪنٽرول: PAD (+20dB attenuation), GND LIFT
- پاور جا اختيار: 2 x 9V batteries (not included), 12Vdc adapter (not included), +48V Phantom Power
- وزن: تقريبن 250 گ
- ٺاهيندڙ: پرويل
9. وارنٽي ۽ سپورٽ
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 webسائيٽ. ڪنهن به وارنٽي دعوائن لاءِ خريداري جي ثبوت طور پنهنجي خريداري جي رسيد رکو.
For further assistance, please contact PROEL customer service or your authorized dealer.
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