0% up to 48 Months on over 110 Brands!

New & Current Vintage King Card Holders

Shop Our Summer Sale

0% financing up to 48 Months on over 110 Brands!

When you shop now with your Vintage King Credit Card.

Best Seller
$ 299 .00
or $7/month for 48 months 0% interest for 48 months. 48 equal monthly payments required. Learn more
In Stock
Orders placed by 4:00pm ET Monday - Friday will ship the same day. To inquire if this item is available to ship sooner or is in one of our stores, please call 888.653.1184.



Rupert Neve Designs RNDI Active Transformer DI

Active transformer direct interface

Product Description

The Rupert Neve Designs RNDI Active Transformer DI could be the last Direct Box you’ll ever need. Where most DI boxes leave your signal sounding thin, The RNDI is capable of reproducing the full harmonic depth of whatever source you send it. RNDI is a Transformer based, Class-A, discrete Direct Box, and is one of the clearest direct boxes on the market. Perfect for Bass, Guitars, Keyboards, and Drum Triggers.

One of the biggest features of RNDI is the selectable speaker input, which allows you to pull the signal directly from your amplifier, eliminating the need to mic your cabinet. You can also go “Thru” the RNDI into a speaker, mic both for a wide range of tones.


  • Transformer based, Class-A, Discrete Circuit
  • Reproduce full harmonic depth of whatever source you send it
  • Selectable Speaker Input/Output
  • Eliminate the need to mic a cabinet, great for live or studio use
  • Can handle up to 1,200 Watts on speaker input

Product Specifications

Condition New
Tube or Solid State Solid State
Channels Single-Channel
Chassis Desktop
Input Connectors 1/4-inch TS
Output Connectors 1/4-inch TS, Analog XLR

Product Reviews

5 out of 5 stars.
Review Count (7)

write a review

I bought this for use with my '78 Ampeg SVT, which doesn't have a direct output. This is the next best thing, and I swear I'm hearing the interaction between the power section and the speakers since the DI is between the two. Of course it requires some LPF to tame the top end that the 810 doesn't reproduce, but the bottom end more than makes up for it. This thing sounds amazing, and it sounds great as a regular instrument DI too!

By Ryan M on June 1, 2021

Amazon piece of gear and put my bass recordings over the top. So clean, clear and transparent. Applying compression is a revelation now.

By cory p on March 4, 2021

I no longer have this piece. I liked the versatility, EXCEPT requiring the 48v instead of a power supply. I have the Phoenix Audio Nimbus, which made the Neve expendable. But I have (2) R6 boxes and a 511. Im showing Neve Luv!! RaJuR real deep kool on the web.

By William R on March 26, 2020

Such clarity! I thought I had a favorite when it came to active DIs, but the RNDI now holds that position in my kit. Especially fun to use on acoustic guitar and clean electric, where preserving the transient and harmonic content is critical. On acoustic, with high-quality monitoring, it's hard to tell where the sound from the instrument ends and the sound coming through foldback via the RNDI begins. Proving useful in-studio as well; current favorite application is bass DI into a Neve 33115 module, no compression. Thunderous!

By Tanner C on December 10, 2019

great sound!!

By Hugh B on October 3, 2019

The RNDI helped me track down the elusive electric guitar tone that I’ve been searching for. I record in my small home studio using a Windows PC running a DAW. Powered by 48V phantom power from my audio interface’s mic pre, the RNDI gives me the clear, rich signal that virtual effects need. It’s a rugged, well-designed piece of gear that stays in place and looks cool. This was my first purchase from Vintage King and I am 100% satisfied.

By Joel S on February 2, 2019

This is an amazing device. For years I used an LR Baggs Para DI. Then our FOH guy convinced me to try the Neve for sound check and I liked it so much I ordered one on my phone from the Green room! It adds a very pleasing acoustic quality and helps my guitar sit in the mix nicely. Best $270 dollars I ever spent! If your looking for better acoustic tone buy one!

By Mark N on December 30, 2018

* 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 Rupert Neve Designs RNDI Active Transformer DI . 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.