1. መግቢያ
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. የደህንነት መረጃ
Please read and understand all safety instructions before operating the DBA1CH. Retain this manual for future reference.
- የኃይል ምንጭ፡- 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.
- የባትሪ ጭነት; When installing batteries, ensure correct polarity. Remove batteries if the unit will not be used for an extended period to prevent leakage.
- አካባቢ፡ Do not expose the unit to rain, moisture, extreme temperatures, or direct sunlight. Operate in a dry, well-ventilated area.
- አገልግሎት መስጠት፡ ይህንን ክፍል እራስዎ ለማገልገል አይሞክሩ። ሁሉንም የአገልግሎት አገልግሎቶች ብቁ ለሆኑ የአገልግሎት ባለሙያዎች ያመልክቱ።
- ማጽዳት፡ በደረቅ ጨርቅ ብቻ አጽዳ. ፈሳሽ ማጽጃዎችን ወይም ኤሮሶሎችን አይጠቀሙ.
3. ምርት አብቅቷልview
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 የፊት ፓነል ባህሪያት
- 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 ampማብሰያ
- Unbalanced Output (6.3mm Jack): An additional unbalanced output.
- ሚዛናዊ ውፅዓት (XLR) Balanced low-impedance output for connecting to a mixer or audio interface.
- PAD መቀየሪያ፡- Attenuates the input signal by +20dB to prevent clipping when connecting high-output sources.
- የጂኤንዲ ሊፍት ማብሪያ/ማጥፊያ፡ Disconnects the ground connection between the input and output to eliminate hum and ground loops.
- የኃይል አመልካች LED: ክፍሉ ሲበራ ያበራል።
4. ማዋቀር
4.1 ክፍሉን ማብቃት
The DBA1CH can be powered in three ways:
- 9 ቪ ባትሪዎች; 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 የፋንተም ሃይል፡- If connected to a mixer with phantom power, the unit will automatically draw power from the XLR output.
4.2 መሰረታዊ ግንኙነት
Follow these steps for a typical setup:
- መሳሪያዎን (ለምሳሌ ጊታር፣ባስ፣ ኪቦርድ) ከ ጋር ያገናኙት። DBA1CH Input using a 6.3mm mono jack cable.
- (ከተፈለገ) ያገናኙ የአገናኝ ውጤት to your instrument amplifier if you wish to monitor your sound on stage.
- ያገናኙት። 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. የአሠራር መመሪያዎች
5.1 PAD Switch Usage
የ 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
የ GND ሊፍት 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. ጥገና
- ማጽዳት፡ የቤቱን ውጫዊ ክፍል ለማጽዳት ለስላሳና ደረቅ ጨርቅ ይጠቀሙ። ሻካራ ማጽጃዎችን፣ ሟሟቶችን ወይም ሰሞችን አይጠቀሙ።
- የባትሪ መተካት፡ 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.
- ማከማቻ፡ 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. መላ መፈለግ
| ችግር | ሊሆን የሚችል ምክንያት | መፍትሄ |
|---|---|---|
| ምንም የድምፅ ውፅዓት የለም። | No power; incorrect connections; faulty cables. | Check battery power or phantom power. Verify all cables are securely connected. Test with different cables. |
| የሚጮህ ወይም የሚጮህ ድምጽ። | የመሬት ዑደት፤ የተበላሸ ገመድ፤ ጣልቃ ገብነት። | ያሳትፉ GND ሊፍት switch. Try different cables. Ensure power sources are properly grounded. |
| የተዛባ ድምጽ። | Input signal too hot; faulty unit. | ያሳትፉ 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. ዝርዝሮች
- ሞዴል፡ PROEL DBA1CH
- ዓይነት፡- ንቁ ቀጥተኛ ሣጥን
- ግብዓቶች፡- 1 x 6.3mm mono jack (unbalanced)
- ውጤቶች፡ 1 x 6.3mm mono jack (Link), 1 x 6.3mm mono jack (Unbalanced), 1 x XLR (Balanced)
- መቆጣጠሪያዎች፡- PAD (+20dB attenuation), GND LIFT
- የኃይል አማራጮች: 2 x 9V batteries (not included), 12Vdc adapter (not included), +48V Phantom Power
- ክብደት፡ በግምት 250 ግ
- አምራች፡ ፕሮኤል
9. ዋስትና እና ድጋፍ
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 webጣቢያ. ለማንኛውም የዋስትና የይገባኛል ጥያቄዎች የግዢ ደረሰኝዎን እንደ ግዢ ማረጋገጫ ያቆዩት።
For further assistance, please contact PROEL customer service or your authorized dealer.
