Rupert Neve RNDI-8 Direct Interface

8-Channel 1U Active Transformer Direct Interface

SKU: rup12C Categories: ,


The Rupert Neve RNDI8 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 instrumentlevel source. The discrete, classA 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 transformercoupled output drives long lines with minimal loss, and the rugged chassis’ steel construction is designed for a lifetime of stage and studio use.

Most direct interfaces include a ground lift switch at the output, and the RNDI8 includes this standard DI ‘lifting’ option via eight individual ‘Pin 1 Isolate’ switches on the rear panel. Engaging this button will usually eliminate common sources of hum in the signal path. However, the RNDI8 also includes eight ground lift buttons on the front panel which separate each channel’s circuit ground from the chassis ground, providing another helpful option to detect and eliminate unwanted ground hum.

Rupert Neve RNDI-8 Specifications:

  • 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
  • Noise (Measured Output, Unweighted BW 22Hz 22kHz, Source Impedance 150 ohms)
    • Better than 110 dBV
  • Total Harmonic Distortion + Noise (THD+N%)
    • @ 1 kHz, +20 dBu Input Level: 0.35% Typical (2nd and 3rd Harmonic)
    • @ 1 kHz, 20 dBu Input Level: 0.009% Typical (2nd and 3rd Harmonic)
    • @ 20 Hz, 20 dBu Input Level: 0.9% Typical (2nd and 3rd Harmonic)
  • Power Requirements
    • Phantom Powered, 4.5mA Per Channel @ +48VDC
  • 19” Rack Mounting Option
    • 1RU reversible bolton rack ears
  • Product Dimensions (W x D x H): 19” (48.3 cm) x 8.125” (20.63 cm) x 1.75” (4.5 cm)
  • Shipping Weight: 9 lbs. (4.1 kg)