Rupert Neve Designs RNDI-S Stereo Active DI
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Essential Information About the Rupert Neve Designs RNDI-S Direct Box
Essential Information About the Rupert Neve Designs RNDI-S Direct Box
- Rupert Neve Designs Signature Sound: custom transformers and discrete FET amplifiers biased in Class A for a dense, lively, and harmonic output.
- Stereo Active DI designed to enhance bass, guitars, keyboards, acoustics, as well as professional line sources and consumer devices via 3.5 mm mini-jack.
- Comfortable Headroom: up to +21.5 dBU input to handle high levels without clipping and preserve dynamics.
- Studio and Stage Integration: XLR outputs, parallel outputs, and ground lift per channel to reduce hum.
Manufacturer Information
Rupert Neve Designs
info@rupertneve.com
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A "Studio-Ready" Evolution of the RNDI DNA, Now in Stereo
Born from experiments with new transformer designs, the RNDI series was developed through comparative listening tests against high-end references. The goal is clear: to provide an extra sense of "dimension," with richer lows and a very clear high-frequency definition without harshness. The RNDI-S builds on this foundation and extends it to modern stereo applications, allowing two channels to be processed with the same tonal coherence and depth.
Who Is It For and What Are Its Uses in Studio or on Stage?
The Rupert Neve Designs RNDI-S is aimed at musicians, home studio owners, sound engineers, and live technicians who want to capture a direct input with musical character while maintaining excellent fidelity. It is ideal for stereo keyboards, multi-effects units, players, and mobile devices, but also for mono setups when you want to dedicate one channel to a bass or guitar and keep the second for another source. The parallel outputs facilitate re-amping or sending to an amplifier, while the XLR output feeds the console or audio interface.
Design and Features: Headroom, Connectivity, and Noise Control
Custom Transformer and Class A FET Stage
The heart of the RNDI-S combines custom Rupert Neve Designs transformers and discrete FET amplifiers biased in Class A. This architecture aims for immediate response, a solid foundation in the low end, and harmonic reproduction that highlights attack and sustain, particularly appreciated on bass, guitar, and acoustic instruments.
A Practical New Feature: Stereo and Mini-Jack
Compared to a mono RNDI DI, the RNDI-S offers a more versatile approach: two channels for your stereo sources, a 3.5 mm mini-jack for consumer devices, and a ground lift switch per channel to better manage ground loops depending on the signal chain. Powered by 48 V phantom power, it easily integrates into studio or stage setups without the need for external power.
Technical specifications
| Number of channels | 2 | Category | audio converter |
| Rackable | No | Type | Box |
| Transformer | Rupert Neve Custom | Connections | 2 x 1/4" jack inputs, 1 x 1/8" mini-jack, 2 x parallel 1/4" jack outputs, 2 x XLR outputs |
| Amplifiers | discrete Class A-biased FET amplifiers | Ground lift switch | one per channel |
| Input headroom | +21.5 dBu | Dimensions | 178 x 127 x 44 mm |
| Power supply | 48 V phantom power | Weight | 680 g |
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Questions frequently asked
Can the RNDI-S handle a stereo keyboard?
Its 2 channels allow processing a stereo source with tone coherence between channels. The XLR outputs then send the signal to a mixer or audio interface.
Can a phone or portable player be connected to this DI?
A 3.5 mm mini-jack input is provided for mobile devices and players.
How is the RNDI-S Stereo Active DI powered?
It is powered by 48 V phantom power from the connected equipment. No external power supply unit is specified.
Is the RNDI-S suitable for bass and guitar in mono?
In mono configuration, one channel can be dedicated to a bass or guitar while the second remains available for another source. The discrete Class A FET stage and custom Rupert Neve Designs transformers contribute to preserving attack and sustain.
How to avoid ground loops with two channels?
Each channel has its own ground lift switch to adapt the connection according to the audio chain. The input headroom reaches +21.5 dBU, allowing acceptance of high signal levels.
