Rupert Neve Designs RNDI-8 8 Channel 1U Direct Interface

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Rupert Neve Designs RNDI-8 8 Channel 1U Direct Interface

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  • £1,630.00
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Description & Specs

This item is in excellent working condition and barely used.
The RNDI-8 consists of eight independent channels of RNDI Active Transformer Direct Interface in a single rack space, providing instrument direct injection for electric guitar & bass, synthesizer, keyboard, piezo pickup, or any other instrument-level source. The discrete, class-A circuit topology is built around Mr. Rupert Neve’s custom transformers, resulting in outstanding sonic performance and supremely natural sound from 5Hz all the way out to well beyond 90kHz. Each channel can handle input levels up to +21dBu (+31dBu with the pad engaged), the low impedance transformer-coupled output drives long lines with minimal loss, and the rugged chassis’ steel construction is designed for a lifetime of stage and studio use.

The Eight Custom Transformers
The RNDI-8’s custom-wound output transformers provide isolation while adding musical harmonics and dimension to the sound. The low impedance, transformer-balanced outputs excel at driving long cable runs, and the performance is consistent regardless of the connected equipment. This is important for both live and studio environments where the unamplified signal may travel 100ft or more before hitting an amplifier.

The Class-A, Discrete FET Input Amplifiers
The class-A & discrete FET input amplifiers in the RNDI-8 are powered by 48V phantom and create a high impedance input of over 2M Ohms, ensuring consistent performance with a wide variety of instruments. The class-A design eliminates crossover distortion that can otherwise be added to the signal and introduce unwanted upper-order odd harmonics. With the RNDI-8, the harmonic content is derived from the octave (2nd order) and fifth above octave (3rd order) relative to the fundamental. These musically relevant harmonics, present in subtle amounts, enhance the richness of the original signal and provide a distinctly musical response. Furthermore, the discrete aspect of the RNDI-8’s design means there are no ICs or digital components to potentially cause negative effects on the tone.

Groundbreaking Direct Tone
When class-A, discrete amplifiers meet Rupert’s custom transformers, magic happens. The RNDI-8 contains the unique components and design knowledge that makes it worthy of the Rupert Neve name.

Huge Headroom
Maximum input level is a massive +21dBu, making the RNDI-8 capable of handling not only instruments but also professional line-level sources like interfaces and drum machines. With the addition of a -10dB pad, that number soars to +31dBu – more than enough for even the highest-output DJ mixers.

Rugged Solid Steel Frame
The rugged steel 1U chassis features an industrial-grade powder coating and is built to withstand the severe stresses of life on the road. The included bolt-on rack ears are reversible for multiple mounting options.

Takes All Kinds
The RNDI-8 performs with immense consistency across a wide variety of sources due to its 2M Ohm discrete FET input and huge headroom, providing superb sound for guitars, synths, basses, acoustic instruments, keyboards, and even professional line level devices.

Drive Longer Lines
The low impedance transformer coupled output is capable of driving long lines with unrivaled high frequency performance.

1/4′′ THRU Outputs
The THRU outputs can be used to feed amplifier inputs for reinforcement.

Ground Lift Options
Pin 1 Isolate switches are provided on the rear panel to help fix any problematic grounding, as well as Ground Lift switches on the front panel to isolate each channel’s circuit ground from chassis ground.

Phantom Powered
Each of the RNDI-8’s eight channels is powered by standard 48V phantom power. Power is indicated by blue LEDs on the front panel, one per channel.

Specs
  • Input Impedance (ZIN)
  • Instrument Input: 2.2 MΩ -10dB PAD Engaged: 200 kΩ
  • Output Impedance (ZOUT)
  • Less than 40 Ohms
  • Maximum Input Level @ 1kHz
  • Instrument Input: +21 dBu -10dB PAD Engaged: +31 dBu
  • Maximum Output Level @ 1kHz
  • +11 dBu
  • Frequency Response (30 ft. output cable, 10k equivalent load) +/- 0.25 dB: 28 Hz - 50 kHz
  • +/- 1 dB: 14 Hz - 90 kHz
  • -3 dB: 5 Hz

Please Note: The item displayed in the images may not be the actual item you receive.

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