Rupert Neve Designs RNDI-M Active Transformer Direct Box

The Rupert Neve Designs RNDI-M delivers world-class direct injection in a pedalboard-friendly format, bringing the signature tone and clarity of Rupert Neve's legendary transformers to musicians and engineers alike. Designed with the same Class-A, discrete FET input stage found in the renowned RNDI, RNDI-S and RNDI-8, this D.I. ensures stunning accuracy, warmth and dynamic response across an ultrawide frequency range. Whether you're tracking guitars, basses, synths or keyboards, the RNDI-M provides pristine, high-headroom performance in both studio and live settings.

Custom Transformer for Harmonic Depth

At the heart of the RNDI-M is its custom-wound Rupert Neve Designs transformer, which adds musical harmonics and dimension while providing exceptional passive isolation. The low-impedance, transformer-balanced output ensures that your signal remains clear and consistent, even when running long cable distances up to 100'. Whether used on stage or in the studio, this ensures unmatched signal integrity and warmth, maintaining the rich tonal character of your instrument.

Class-A FET Input for Pure, Natural Tone

The Class-A, discrete FET input stage in the RNDI-M is powered by 48V phantom power, providing a high-impedance 2.2 Mohm input that ensures compatibility with a wide variety of instruments. Unlike IC-based designs, this fully discrete circuit eliminates crossover distortion, resulting in musically pleasing harmonics that enhance the natural warmth and detail of your sound. This thoughtful design makes the RNDI-M ideal for electric guitars, basses, keyboards, drum machines and more, delivering uncompromised tone with every performance.

Massive Headroom With Thunderous Low End

With a staggering +20.5dBu input headroom, the RNDI-M can handle everything from passive pickups to powerful synths and drum machines, injecting the coveted Rupert Neve character into any source. The wide frequency response, extending from below 5Hz to well-beyond 90kHz, ensures that bass notes remain deep and powerful, while midrange and treble frequencies stay rich and articulate. Whether tracking vintage warmth or modern punch, the RNDI-M ensures every detail of your performance is captured with depth and clarity.

Built for the Studio and the Road

Encased in a rugged steel chassis, the RNDI-M is built to withstand the demands of touring and professional studio use. The 1/4" THRU output allows seamless connection to an amplifier without any signal degradation, while the Ground Lift switch eliminates unwanted hum and grounding issues. Powered by standard 48V phantom power, the RNDI-M is ready to deliver legendary Rupert Neve sound wherever your music takes you—from the stage to the studio and beyond.