SM Pro Audio DI1

The SM Pro Audio DI1 is a compact high quality active direct injection box. Used in both studios and on the road it will ensure audio signals reach their intended destination in both a balanced format and free from unwanted noise.

Connect the output from electric guitars, bass amplifiers, keyboards, etc, directly to a console mixer without the use of a microphone.

Built for toughness and reliability, the SM Pro Audio DI1 has all the features of a fully featured gig-ready workhorse DI unit.

SM Pro Audio DI1 Features

• Level and impedance matching function
• Signal pass through connector
• Battery led indicator
• Phantom power led indicator
• TS and XLR inputs and outputs
• Attenuation control
• Ground lift switch

SM Pro Audio DI1 Specifications

• Input Impedance:
  > 250k Ohm
• Max Input: +12dBu ( at 0dB) Level +32dBu ( at -20dB) +52dBu ( at -40dB)
• Connectors:
  Two Parallel 1/4" jack connectors and a parallel XLR connector (unbalanced) Jack: Tip Hot (+ve) Sleeve Ground
  XLR: Pin 2 Hot (+ve) Pin1 & 3 Ground
• Output impedance:
  > 600 Ohms
• Output connector:
  XLR balanced
• Distortion: (THD) < 0.005% at 1kHz, 0dBu
• Output Noise:
  <-100dB unweighted
• Frequency response:
  10Hz to 70kHz, +0dB/-3dB
• Main/Standby: 9 volt battery
• Phantom Power: +18 volts DC to +48 volts DC