The RNDI delivers groundbreaking direct tone and huge headroom in a rugged, portable DI box. Combining custom Rupert Neve transformers with Class-A discrete FET amplification, the RNDI reproduces the full harmonic richness of instruments, basses, guitars, acoustic sources, and line-level signals with clarity, depth, and dimension.
Key Features
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Custom Rupert Neve Transformers: Add musical harmonics and rich dimension while providing superior passive isolation.
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Class-A Discrete FET Amplifier: Ensures zero crossover distortion and maintains 2nd-order harmonics for natural, musically relevant tone.
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Groundbreaking Direct Sound: Full-bodied, vibrant, and larger-than-life tone for instruments and line-level sources.
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High Headroom: +21.5 dBU input capability for instruments and professional line-level sources without a pad.
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1/4" THRU Output: Sends the input signal directly to an amplifier while feeding the DI simultaneously.
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Superb Phase Coherence: Maintains tonal integrity even over long cable runs.
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Ground Lift Switch: Eliminates ground loops in live and studio settings.
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Phantom Powered: Provides clean, reliable power for Class-A FET operation.
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Speaker Re-Amping Capability: Handles high-level signals up to 1000W to capture preamp and amplifier tone before the speakers.
Why It Stands Out
Fine-tuned through rigorous listening tests, the RNDI adds a new dimension to instrument signals. Lows are richer and fuller, highs are clear and articulate, and the midrange is natural and musical. Its low-impedance, transformer-balanced output ensures consistent performance and long-cable driving capability, making it ideal for both studio and live applications. With the RNDI, engineers can also re-preamp tracks or capture speaker output for authentic tone without bleed or coloration from microphones or cabinets.
Type
Noise
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Measured output, un-weighted, 22 Hz – 22 kHz, source impedance 150 Ω to 10 kΩ: better than –110 dBV
Input Impedance
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Instrument Setting: 2.2 MΩ
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Speaker Setting: 200 kΩ
Output Impedance
Frequency Response
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±0.25 dB: 25 Hz – 44 kHz
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±1 dB: 12.5 Hz – 63 kHz
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–3 dBu @ 92 kHz
Maximum Input Level
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Instrument: +21 dBu
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Typical Speaker: +41.5 dBu, 92 Vrms (266 Vp-p)
Maximum Output Level
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+11.5 dBu at maximum input
THD + Noise
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@ 1 kHz, +20 dBu input: 0.25% typical (2nd & 3rd harmonic)
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@ 1 kHz, –20 dBu input: 0.015% typical (2nd & 3rd harmonic)
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@ 20 Hz, –20 dBu input: 0.75% typical (2nd & 3rd harmonic)
Power Requirements
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Phantom power: 4.5 mA @ +48 VDC
Physical
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Dimensions: 6.25 × 4 × 1.5 "
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Weight: 1.5 lbs
