Rolls ADB2 Active Direct Box Interface with 9-48 V Phantom Power Support, Attenuator and Ground Lift Switches


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About Rolls ADB2

The Rolls ADB2 is designed for sending unbalanced signals (up to +40dB) to a mixing console or other professional input device. The unit has no transformer, so stray field pickup is nonexistent. The unit is powered by standard microphone phantom power from 9 - 48VDC and uses discrete low-noise differential drivers to make it very quiet. The unit has two 1/4 inch TS phone input jacks wired in parallel, a male XLR output jack, a ground lift switch and a three-position attenuator switch.

Rolls ADB2 Features

  • Active direct box
  • Attenuator switch for connection to line level or speaker level signals
  • Uses standard 9 to 48V phantom power
  • Ground lift switch for "hum" reduction

Rolls ADB2 Specifications

Input Connections
2 x 1/4" TS phone (unbalanced)
Output Connectors
1 x XLR
Input Level
-10 to +40dB
Output Level
-10 to +2dB
Frequency Response
1Hz to 50kHz
S/N: 100dB
9 to 48V phantom power
Dimensions (W x D x H)
5" x 3 1/2" x 2" / 12.70 x 8.89 x 5.08 cm
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