dbx DJDI - 2-channel Passive Direct Box with Continuously Variable Input Attenuator in Black Finish

The dbx DJDI is a high-performance 2-channel passive direct box designed for versatile audio applications where reliable signal conversion is essential. With its dual-channel design, the DJDI provides an effective solution for converting unbalanced signals into balanced outputs, making it suitable for use with mixers, PA systems, recording consoles, and various other audio equipment. This passive direct box excels in delivering clean, quiet, and uncolored signal processing, requiring no external power for operation.

Featuring two 1/4-inch TS inputs with an input impedance of 50 kOhms, the DJDI can handle a wide range of signal levels. The continuously variable input attenuator allows for precise adjustment of the input signal, accommodating both high and low-level sources with ease. This flexibility ensures that the DJDI can be used effectively in different audio scenarios, from live performances to studio recordings.

The DJDI's passive circuit design ensures that the audio signal remains clean and free from coloration. This is achieved through the use of transformer-isolated XLR outputs, which are balanced and provide a 600 Ohm output impedance. The transformer isolation helps to eliminate ground loop issues and prevents unwanted noise from interfering with the signal. The unit's ground lift switch further aids in mitigating hum and buzz caused by ground loops, ensuring a pristine audio signal.

In terms of performance, the DJDI offers impressive specifications. The noise level is exceptionally low at -104 dBu (22Hz - 22kHz, input shorted), ensuring that even the quietest signals are processed with clarity. The total harmonic distortion plus noise (THD+N) is 0.23% typical at +4 dBu and 1 kHz, demonstrating the DJDI's ability to handle signals with minimal distortion. The insertion loss is 21 dB typical, maintaining signal integrity throughout the audio chain.

With its compact dimensions of 5.51 x 4.72 x 1.57 inches, the dbx DJDI is designed to fit comfortably in various setups, whether in a rackmount or as a standalone unit. Its robust construction and straightforward functionality make it a reliable choice for audio professionals who need a durable and effective direct box.

In summary, the dbx DJDI 2-Channel Passive Direct Box with Continuously Variable Input Attenuator is a versatile tool that ensures high-quality signal conversion with minimal coloration. Its dual-channel design, passive circuit, and transformer isolation make it an ideal choice for a wide range of audio applications, delivering reliable performance without the need for external power.

Features

• 2-channel passive direct box for converting unbalanced signals to balanced outputs
• Dual 1/4-inch TS inputs with 50 kOhm impedance
• Continuously variable input attenuator for precise signal level adjustment
• Transformer-isolated XLR outputs with 600 Ohm output impedance
• Passive circuit design ensures clean, uncolored operation
• Ground lift switch to eliminate hum and buzz from ground loops
• Noise level: -104 dBu (22Hz - 22kHz, input shorted)
• Total harmonic distortion plus noise (THD+N): 0.23% typical at +4 dBu, 1 kHz
• Insertion loss: 21 dB typical
• Compact dimensions: 5.51 x 4.72 x 1.57 inches

Specifications

Circuit

• Type: Passive

Inputs

• Number of Connectors: 2
• Connection: 1/4-inch TS (Tip Hot, Sleeve Ground)
• Type: Unbalanced, RF Filtered
• Input Impedance: 50 kOhm

Outputs

• Number of Connectors: 2
• Connection: Male XLR, Balanced, Pin 2 hot
• Output Impedance: 600 Ohms
• Noise Level: -104dBu (22Hz -22kHz, Input Shorted)
• THD+N (10Hz-22kHz): 0.23% typical @ +4dBu @ 1kHz
• Insertion Loss: 21dB typical

Physical

• Dimensions: 5.51 x 4.72 x 1.57 inches