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AR-133 Active DI Box

The unit includes phantom power and battery supplies as standard. Should the phantom power from the console fail or be accidentally switched off, the AR-133 automatically switches over to the internal 9V battery providing uninterrupted use.

The unit is housed in a rugged aluminum extrusion case, with robust polyurethane end-cheeks which give the AR-133 a very distinctive look.

Input connectors are both 1/4″ jack sockets and an XLR socket, the latter meaning that the AR-133 can be used to convert unbalanced signals to a balanced output on XLRs throughout.

The arched case allows cables to run back underneath the unit from the end for neat cable management.

Features

  • Input Impedance: 1 MOhm (pad at 0dB), 47 kOhm (pad at -20dB or -40dB)
  • Max Input: +9dBu (pad at 0dB), +29dBu (pad at -20dB), +49dBu (pad at -40dB)
  • Input Connectors: Two Parallel 1/4" jack connectors (Tip Hot +ve, Sleeve ground), and a parallel XLR connector (unbalanced) (Pin 2 Hot +ve, Pin 1 & 3 ground)
  • Output: Transformer Balanced
  • THD: < 0.005% at 1khz, 0dbu output
  • Noise: < -105db unweighted, 22hz-22khz, rms*
  • Frequency Response: 30Hz to 20kHz, +0dB/-1dB

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