Radial Engineering PROD1 Passive Direct Box

More Radial Engineering products

Write a review Q&A SKU: TZ-PROD1 Solotech ID#: 106006
1 of 5
Sale price $75.00 USD

Solotech Loyalty points

You will receive 75 points. Learn more about our loyalty program

Available options

Product attributes

Need help? Contact our product specialists.

View full details

Need help? Contact our product specialists.


Radial Engineering PROD1 Passive Direct Box

The ProDI is a passive direct box designed for use on stage or in home recording studios, with the ability to handle high output instruments without distortion, and a transformer-isolated output to eliminate noise from ground loops.


  • 1/4" INPUT: Instrument input used to connect to the direct box.
  • 1/4" THRU-PUT: Parallel output used to connect the instrument signal to an amplifier.
  • -15dB PAD: Reduces the input signal to prevent distortion.
  • BOOKEND DESIGN: The bookend cover provides protection to switches and connectors.
  • XLR OUT: balanced, low impedance mic-level output. Wired with AES standard (pin-2 hot).
  • GROUND LIFT: Disconnects pin-1 at the XLR output to reduce ground loops.
  • FULL BOTTOM FOAM PAD: Isolates the DI from the amp chassis and keeps it from sliding around on busy stages.
  • STEEL ENCLOSURE: Ultra rigid I-beam design eliminates stress that could torque the PC board and cause solder joint failure.
  • RADIAL TRANSFORMER: Custom designed transformer offers outstanding audio performance.
  • DOUBLE-SIDED PCB: Military-grade PCB with plated through-holes is bolted to welded steel standoffs.


  • Frequency response: 20Hz to 20kHz +/- 2.5dB
  • Total harmonic distortion: 0.01 % from 20Hz to 20kHz
  • Input impedance: 140K ohms (with 1kHz input)
  • Balanced outputs: 150 ohms, -60dB mic level, pin-2 hot
  • PAD: -15dB


Write a review


Questions & Answers

Ask a question

You may also like

  • Ask the experts

    Our expert team guides customers towards the best equipment solutions, ensuring unparalleled performance and customer satisfaction.

    Ask an expert here 
  • Financing Options

    We offer flexible financing options, starting at 0% APR. Our financing plans provide customers with the opportunity to acquire top-quality audio, DJ, and lighting equipment with ease and convenience.

    Explore more financing options 
  • Rewards Program

    Join our Rewards Program today and enjoy the benefits of smart shopping!

    Visit our rewards page