1. Giriş
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. Güvenlik Bilgileri
Please read and understand all safety instructions before operating the DBA1CH. Retain this manual for future reference.
- Güç Kaynağı: 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.
- Pil Montajı: When installing batteries, ensure correct polarity. Remove batteries if the unit will not be used for an extended period to prevent leakage.
- Çevre: Do not expose the unit to rain, moisture, extreme temperatures, or direct sunlight. Operate in a dry, well-ventilated area.
- Servis: Bu ünitenin bakımını kendiniz yapmaya çalışmayın. Tüm bakım işlemlerini yetkili servis personeline yaptırın.
- Temizlik: Sadece kuru bir bezle temizleyin. Sıvı temizleyiciler veya aerosoller kullanmayın.
3. Ürün Bittiview
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 Ön Panel Özellikleri
- 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 ampcankurtaran.
- Unbalanced Output (6.3mm Jack): An additional unbalanced output.
- Dengeli Çıkış (XLR): Balanced low-impedance output for connecting to a mixer or audio interface.
- PAD Anahtarı: Attenuates the input signal by +20dB to prevent clipping when connecting high-output sources.
- GND KALDIRMA Anahtarı: Disconnects the ground connection between the input and output to eliminate hum and ground loops.
- Güç Gösterge LED'i: Ünite açıldığında yanar.
4. Kurulum
4.1 Ünitenin Güçlendirilmesi
The DBA1CH can be powered in three ways:
- 9V Piller: 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 Fantom Gücü: If connected to a mixer with phantom power, the unit will automatically draw power from the XLR output.
4.2 Temel Bağlantı
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.
- (İsteğe bağlı) Bağlantı Çıkışı to your instrument amplifier if you wish to monitor your sound on stage.
- Bağlan Dengeli Çıkış (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. Kullanım Talimatları
5.1 PAD Switch Usage
The PED 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 KALDIRMA 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. Bakım
- Temizlik: Cihazın dış yüzeyini temizlemek için yumuşak, kuru bir bez kullanın. Aşındırıcı temizleyiciler, çözücüler veya cilalar kullanmayın.
- Pil Değişimi: 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.
- Depolamak: 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. Sorun Giderme
| Sorun | Olası Neden | Çözüm |
|---|---|---|
| Ses çıkışı yok. | No power; incorrect connections; faulty cables. | Check battery power or phantom power. Verify all cables are securely connected. Test with different cables. |
| Uğultu veya vızıltı sesi. | Ground loop; faulty cable; interference. | Etkileşim kurun GND KALDIRMA switch. Try different cables. Ensure power sources are properly grounded. |
| Bozuk ses. | Input signal too hot; faulty unit. | Etkileşim kurun PED 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. Özellikler
- Modeli: PROEL DBA1CH
- Tip: Aktif Doğrudan Kutu
- Girişler: 1 x 6.3mm mono jack (unbalanced)
- Çıktılar: 1 x 6.3mm mono jack (Link), 1 x 6.3mm mono jack (Unbalanced), 1 x XLR (Balanced)
- Kontroller: PAD (+20dB attenuation), GND LIFT
- Güç Seçenekleri: 2 x 9V batteries (not included), 12Vdc adapter (not included), +48V Phantom Power
- Ağırlık: Yaklaşık 250 gr
- Üretici: PROEL
9. Garanti ve Destek
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 website. Herhangi bir garanti talebi için satın alma belgeniz olarak satın alma makbuzunuzu saklayın.
For further assistance, please contact PROEL customer service or your authorized dealer.
