Skip To Main Content
Fuel your passion: 0% up to 48 months
May Savings New Deals Drop Daily!
  1. Home
  2. Recording
  3. Studio Tools
  4. Direct Input (DI) Boxes
  5. Radial Engineering HDI Studio-Grade DI Box

(1)

write a review

$ 889 .99
or $38/month for 24 months 0% interest for 24 months. 24 equal monthly payments required. Learn more
PayPal Credit, Express Checkout and Pay in 4 available.
In Stock
Orders placed by 4:00pm ET Monday - Friday will ship the same day. Place your order before 4:00pm ET Mon-Fri and we will ship your items the same day.

To inquire if this item is available in one of our stores, please call 888.653.1184 or chat with us.

SKU

133184

Questions? Spot a Better Price? Call 888.653.1184 or

Add to List

Radial Engineering HDI Studio-Grade DI Box

Studio-grade direct box and preamp, with a simple but powerful feature set designed to produce superior sonic results within moments
MFR# R800 2025
Shop All Radial Engineering
main product photo

Product Description

Direct box experts Radial Engineering are back with the new HDI Studio-Grade DI Box that's sure to change the way you make records. The HDI is a premium, flagship-level DI box designed to give you tons of options in any recording scenario. Whether your recording session calls for bass, keys, or other instruments to be run through a direct box, the HDI is designed to give you the highest quality signal when the source hits your DAW. With a custom Jensen transformer, the HDI allows you to dial in the amount of coloration in your signal, and an onboard Opto style compressor is at your disposal to tame peaks. The presence control allows your source to cut throw a mix, and a useful VU meter allows you to watch how hard you’re driving the HDI and how much saturation you’re adding.

Features:

  • Oversized custom wound Jensen transformer
  • Ultra clean or dial in vintage warmth
  • Opto compressor to tame harsh transients
  • Mic and line level outputs

Product Specifications

ConditionNew
ChassisDesktop
Input Connectors1/4-inch TS
Output Connectors1/4-inch TRS, Analog XLR

Product Reviews

5 out of 5 stars.
Review Count (1)

write a review

Used with an AER Acousticube 3 output throws the resonator guitar into a whole new realm of performance. Using the Line output, that Jensen transformer will power through just about anything (poor stage cabling) with plenty of dB to spare and pure clean tone. The Mic output is a little more tame and provides the same studio fidelity. The front panel controls are simple to use and very intuitive. The opto compressor settings have a very smooth reaction to hard transients without any trace of breathing or pumping. Did use the front input directly with the same "Reso" guitar with very poor performance due to impedance mismatch issues. Would work much better with an electric guitar or other Hi Z instrument.

By Kim W on November 13, 2021

* Required Fields

Share Your Opinion

The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the Radial Engineering HDI Studio-Grade DI Box . Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.

For assistance in better understanding the content of this page or any other page within this website, please call 888.653.1184 during normal business hours.

© 1993 - 2022 Vintage King Audio All Rights Reserved. Terms and Conditions | Privacy and Security | Accessibility

Signifyd SSL Accessible360