Rupert Neve Designs RNDI-S Stereo Active Transformer Direct Interface

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Rupert Neve Designs RNDI-S Stereo Active Transformer Direct Interface

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  • $480.00
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Description & Specs

Please Note: Item is subject to minor cosmetic imperfections. Packaging may be in poor shape. The item displayed in the images may not be the actual item you receive.
An expanded two-channel version of our best-selling RNDI, providing massive tone & headroom for all of your instruments & stereo sources.

The RNDI-S signature sound is the product of custom Rupert Neve Designs transformers and class-A biased, discrete FET amplifiers. The carefully orchestrated union of these two elements is key to the unique response of the RNDI-S, delivering a powerful and vibrant direct sound capable of reproducing the full harmonic depth of basses, guitars, keyboards, acoustic instruments, professional line-level sources and consumer devices with a 3.5mm jack.

With portable, powerful, larger-than-life tone, the RNDI-S is ready to make your stereo or mono direct sources shine.

The Development of the RNDI
After coming into existence during an experimentation with new transformer designs, the RNDI was fine-tuned over a series of listening tests against the the most popular high-end DIs available. It was in these tests where the RNDI always seemed to add another dimension to the sound and bring the instruments to life. The lows felt richer, deeper and fuller, and the highs had outstanding clarity without any added harshness.

Active + Passive: The Best of Both Worlds
The RNDI-S and RNDI’s signature sound is the product both of new custom Rupert Neve-designed transformers and class-A biased, discrete FET amplifiers. The carefully orchestrated union of these two elements is key to their unique response.

THE TRANSFORMERS
The custom transformers provide superior passive isolation while adding musical harmonics and dimension to the sound. The low impedance, transformer-balanced output excels at driving long cable runs, and performance is immensely consistent regardless of the connected equipment. This is very important for both live and studio environments where the unamplified signal may travel almost 100ft before hitting an amplifier. In other designs, these high-capacitance lines cause major reductions in high frequencies – not so with the RNDI.

THE CLASS-A, DISCRETE FET AMPLIFIERS
The class-A & discrete FET amplifier in the RNDI is powered by 48V phantom, and creates a very high impedance input of 2M Ohms that ensures consistent performance with a wide variety of instruments. The class-A design ensures that zero crossover distortion is added to the signal, which can add upper-order odd harmonics that are musically dissonant in nature. With the RNDI, the overwhelming majority of harmonic content is 2nd order (octave) with some 3rd order present (fifth above octave). These musically relevant harmonics, present in subtle amounts, actually add to the richness of the original signal. And the discrete aspect of the RNDI design means there are no ICs or digital components that can have negative effects on the tone.

  • Custom Rupert Neve Designs transformers for rich, powerful tone
  • Exceptional performance with any instrument
  • Unrivaled clarity from discrete FET amplifiers
  • Drives long lines with minimal loss
  • Rugged steel frame built for life on the road
  • Powered by dual 48V phantom power
  • Excellent phase coherence at all frequencies


NOISE
  • Measured Output, un-weighted, 22 Hz - 22 kHz, source impedance 150 Ohm.
  • Better than -110 dBV

INPUT IMPEDANCE
  • Instrument Setting: 2.2 Meg Ohm
  • 3.5 mm Input: 95 Kilohm

OUTPUT IMPEDANCE
Less than 40 Ohms

FREQUENCY RESPONSE
  • +/- 0.25 dB from 30 Hz - 63 kHz
  • +/- 1 dB from 12.5 Hz - 120 kHz
  • -3 dBu @ 5 kHz

MAXIMUM INPUT LEVEL
Instrument = +20.5 dBu

MAXIMUM OUTPUT LEVEL
+11.5 dBu output at maximum input level

TOTAL HARMONIC DISTORTION AND NOISE
  • @ 1 kHz, -20 dBu Input Level, no load : 0.009% Typical (2nd and 3rd Harmonic)
  • @ 1 kHz, +20 dBu Input Level, no load : 0.35% Typical (2nd and 3rd Harmonic)
  • @ 20 Hz, -20 dBu Input Level, no load : 0.9% Typical (2nd and 3rd Harmonic)

CROSSTALK @ 10 kHz
  • Instrument Input: -115 dB
  • 3.5 mm Input: -108 dB

POWER REQUIREMENTS
Phantom power, 4.5mA @ +48VDC

WEIGHT
1.5lbs

DIMENSIONS
7” long x 5”wide x 1.75” high

MOUNTING OPTION
19” Rack Shelf, 4 hole pattern (bottom of unit) for 6-32 machine screws

You read that right! Any orders over $30 ship for free!*

The CME Difference:  CME's mission is to make sure your shipment will arrive quickly, carefully, and correctly. We realize that the online ordering of guitars and instruments, in general, can be a nerve-racking experience. We are here to put your mind at ease and make your transaction smooth and enjoyable! As musicians ourselves, we want to make sure everything gets to you the way it should, every time.

Most orders ship the same or next day:  
We greatly appreciate your patience, and are working hard to fulfill all requests as quickly as possible, while practicing recommended safety guidelines.

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Please don't hesitate to reach out to support@chicagomusicexchange.com, or call us directly at 773-525-7773.

*Special exceptions do apply.

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day
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LOCATION 

3316 N Lincoln Avenue Chicago, IL 60657


We're right off the CTA Brown Line 'Paulina' Stop Just North of Belmont and just West of Ashland.

We’re all musicians here at Chicago Music Exchange and we want you to love the gear you get from us. We understand that sometimes you get a piece of gear that doesn’t work out for you. That’s why we offer an easy return policy to take the stress out of purchasing from us.

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We strive to get your return processed quickly. Most of the time we have it done within two business days. Funds going back to credit cards usually takes two to four business days. CME strives to make sure all customers are happy with their experience. It is our priority to provide great service along with great gear. We always want to be helpful, and open to your feedback. Please let us know your thoughts! If you have any questions, we’re here for you!

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