ART dADB - Dual Active Direct Box

The ART dADB dual active direct box acts as two independent, high quality active interfaces for connecting instrument, line, or speaker level signals to balanced inputs. The high impedance ¼-inch inputs are buffered and converted by extremely low noise active electronics to deliver isolated, balanced, low impedance outputs.

The dADB delivers an extremely flat and wide frequency response even at high input levels, making it a virtually acoustically transparent DI solution.

Input attenuation on each channel allows for a wide range of source signal levels. Independent parallel thru jacks allow for tapping the signal chains. A Ground Lift on each channel allows for totally separate the input and output signal grounds to isolate two systems when required, thus reducing hum and ground-loop noise.

Features

• Fully Active Design
• Operates on Phantom Power or 9V Battery
• Converts High-Impedance Balanced / Unbalanced Inputs Into 600 Ohm Balanced Outputs
• Switchable Input Attenuation (0, -20, -40 dB)
• Independently Switchable Low Pass Filter on each Channel
• Independently Switchable Phase Invert on each Channel
• Independently Switchable Ground Lift on each Channel
• ¼-inch TRS Connector Inputs and Thru Connections
• XLR Connectors for Balanced Outputs
• Rugged Steel Case

Specifications

• Input Connections: 1/4" TRS balanced / unbalanced (2), 470k Ohm
• Thru Connections: 1/4" TRS (2)
• Output Cannections: XLR male balanced (2),
• Input Attenuation: Switchable (0dB, -30dB)
• Frequency Response: 10 Hz - 100 kHz +/- 0.5 dB @ +0 dBu
• THD:
• Dynamic Range: > 100 dB (typical)
• Channel Separation: > 80 dB (typical)
• Maximum Input Level: +4, +24, +44 dBu (depending on attenuator setting)
• Maximum Output Level: +6 dBu (battery powered), +14 dBu (phantom powered)
• Power Requirements: 9V @ 7.5 mA (battery, alkaline recommended) / 18-48V DC @ 6.4 mA (phantom power , per channel)
• Dimensions: 2" x 5" x 5.75" (51mm x 127mm x 146mm)
• Weight: 2.7 lbs (1.22 kg)