Active DI-BOX

  • .XLR & 1/4” phone jack combo - input connector
  • .Parallel link 1/4” phone jack - output connector
  • .XLR - output connector
  • .Powered from phantom power or one 9V battery
  • .Internal battery automatically shuts off when phantom power is applied
  • .Power on/off switch with an indicator
  • .Provides 0dB, -20dB, -40dB additional attenuation
  • .Input levels of up to +49dB
  • .Ground lift switch
  • .Ultra-rugged, road-suitable aluminum case
  • .Rubber feet pads
  • .Transformer balanced output.


The DI-BOX of UNiKA active direct boxes is one of our popular products. DI-BOX is a high-quality active direct box with clear sound for transforming high-impedance unbalanced instrument outputs to low-impedance balanced inputs. The DI-BOX active direct box is ideal for instrument rigs, studios, DJ equipment and pro audio. Every DI-BOX active direct box has been thoroughly tested and offers the best value at an affordable price.


DI-BOX is an active direct box that operates with phantom power or one 9V battery. Its clean front-end circuitry delivers extremely wide and flat frequency response and will reveal hidden harmonics from guitars, basses and keyboards with high-output passive pickups.

The unit has an XLR & 1/4” phone jack combo input connector, a parallel link 1/4” phone jack output connector, and an XLR output connector.

The DI-BOX also features a power on/off switch with an indicator, an input switchable 0dB, -20dB, -40dB attenuation pad, allowing input levels of up to +49dB, and a ground lift switch to eliminate noise associated with ground loops. 

The DI-BOX Active Direct Boxes are all made in ultra-rugged, road-suitable aluminum case with stackable rubber pads designed. 

For more details about the UNiKA DI-BOX, please contact UNiKA Professional Audio at +886 2 2793-3017. Also, visit the UNiKA Electronic Co., Ltd. website at


Input One XLR & 1/4” Phone Jack Combo Connector
Attenuator 0dB 20dB 40dB
Impedance 1MΩ 47kΩ 43kΩ
Maximum Input Level Before Clip +9dBu +29dBu +49dBu
Output One Parallel Link 1/4” Phone Jack Connector & One XLR Connector
Frequency Response (20Hz~20KHz) ±1dB
Residual Noise <-105dBu
Total Harmonic Distortion <0.005% @1kHz, 0dBu Output
Phantom Power Requirement +20V DC - +48V DC
Current Drain Phantom Power <8mA
Battery <2mA
Dimensions (H×W×D) 150 x 134 x 63mm
Weight 650g/22oz (Excluding Battery)