Rupert Neve Designs RNDI Active Transformer Direct Interface

Rupert Neve Designs RNDI Active Transformer Direct Interface

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The RNDI’s signature sound is the product 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 the RNDI’s unique response, delivering a powerful and vibrant direct sound capable of reproducing the full harmonic depth of basses, guitars, acoustic instruments, and professional line level sources. With portable, powerful, larger-than-life tone for your instrument and amplifier signals, the RNDI is truly the first standalone DI worthy of the Rupert Neve name.
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. Most importantly, the design team noted: “As musicians, the RNDI consistently stood out as the DI we wanted to play through.”

Rupert Neve Designs RNDI Features:

  • Groundbreaking Direct Tone
    When class-A, discrete amplifiers meet Rupert’s custom transformers, good things happen to your tone. The RNDI is imbued with the unique components and design knowledge that makes it worthy of the Rupert Neve name
  • Huge Headroom
    The high input headroom of +21.5dBU is capable of handling professional, line level sources without a pad – and in speaker mode, the RNDI can handle the full output of a 1000-watt power amplifier (92 Vrms or 266Vp-p).
  • Rugged Solid-Steel Frame
    The rugged steel chassis features an industrial-grade powder coating, and is built to withstand the severe stresses of life on the road
  • Takes All Kinds
    The RNDI has immensely consistent performance across a wide variety of sources due to its 2M Ohm discrete FET input and high headroom. You can confidently use the RNDI with basses, guitars, acoustic instruments, keyboards, and even professional line level devices. In instrument mode, you can even connect a professional line level interface output to “Re-Preamp” a previously recorded source
  • Drive Longer Lines
    The low impedance transformer coupled output – below 50 ohms – is capable of driving long lines with unrivaled high frequency performance
  • 1/4” THRU Output
    In instrument mode the THRU output can feed the amplifier input for reinforcement. In speaker mode, the THRU is used to feed the amplified signal to the speaker
  • Best in Class Phase Coherence
    Phase coherence is excellent at all frequencies, which keeps the sound well-balanced and natural, and is especially vital when blending the direct signal with a microphone capture of the same source
  • Ground Lift
    A ground lift switch is provided on the back to help fix any problematic grounding.
  • Phantom Powered
    The RNDI is powered by standard 48V phantom power. Power is indicated by a blue LED on the front panel

Rupert Neve Designs RNDI Specifications:

  • Noise:
    Measured Output, un-weighted, 22Hz-22kHz, source impedance 150 Ohms to 10K Ohms
    Better than -110dBV
  • Input Impedance
    Instrument Setting: 2.2 Meg Ohm
    Speaker Setting: 200k Ohm
  • Output Impedance
    Less than 40 Ohms
  • Frequency Response
    +/- 0.25dB from 25Hz – 44kHz
    +/- 1dB from 12.5Hz – 63kHz
    -3dBu @ 92kHz
  • Maximum Input Level
    Instrument = +21dBu Typical Speaker = +41.5dBu, 92 Vrms (266Vp-p)
  • Maximum Output Level
    +11.5dBu output at maximum input level
  • Total Harmonic Distortion plus Noise
    @ 1kHz, +20dBu input level:
    0.25% Typical (2nd and 3rd harmonic)
    @ 1kHz, -20dBu input level :
    0.015% Typical (2nd and 3rd harmonic)
    @ 20Hz, -20dBu input level :
    0.75% Typical (2nd and 3rd harmonic)
  • Power Requirements
    Phantom power, 4.5mA @ +48VDC
  • Weight
  • Dimensions
    6.25” long x 4”wide x 1.5” high

Collections: D.I. Boxes, Mega Discount, Rupert Neve Designs, ₹20,000 to ₹30,000


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