Add the stunning tone and clarity of Rupert Neve's analog mojo to your instruments with the Rupert Neve Designs RNDI-M, a compact, active transformer Direct Interface (DI) that features the same circuitry as the award-winning RNDI, RNDI-S and RNDI-8, but in a compact and pedalboard-friendly format. By streamlining its feature set and housing the electronics in a rugged and more compact chassis, the RNDI-M fits neatly into any space and will allow even more musicians and engineers to tap into the uncompromised sonic power and vibrancy of a Rupert Neve Designs DI.
The RNDI-M provides instrument direct injection for electric guitars and basses, synthesizers, keyboards, piezo pickups, 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 strikingly natural sound from below 5 Hz all the way up to well beyond 90 kHz. It can handle input levels up to +20.5 dBu, the low impedance, transformer-coupled output stage drives long lines with minimal loss, and the rugged steel chassis is designed for a lifetime of stage and studio use.
- When class-A, discrete amplifiers meet Rupert’s custom transformers, amazing things happen. The RNDI-M contains the unique components and design knowledge that make it worthy of the Rupert Neve name
Huge Headroom
- Maximum input level is a massive +20.5 dBu, making the RNDI-M capable of handling not only instruments, but also keyboards, drum machines, and even pre-recorded material
Rugged Solid Steel Frame
- The rugged steel chassis is built to withstand the severe stresses of life on the road
Use on a Variety of Sources
- The RNDI-M has immensely consistent performance across a wide variety of sources due to its 2.2-Megohm discrete FET input stage and high headroom. The RNDI-M can be used with confidence on guitars, synths, basses, acoustic instruments, keyboards, and drum machines
Drive Longer Lines
- The low-impedance transformer coupled output—below 40 ohms—is capable of driving long lines while maintaining exceptional high-frequency performance
1/4" THRU Output
- The THRU output can be used to maintain optimal input level to an amplifier with no signal degradation
Ground Lift
- A ground-lift switch is provided on the rear panel to isolate pin 1 on the XLR balanced output from the circuit ground to help fix any potential grounding issues
Phantom Powered
- The RNDI-M is powered by standard 48V phantom power. Power is indicated by a blue LED on the front panel
- The class-A, discrete FET input stage in the RNDI-M is powered by external +48V phantom with a high-impedance input of 2.2 Megohms that ensures consistent performance with a wide variety of instruments and other sources
- The class-A design ensures that zero crossover distortion is added to the signal, which can add upper-order odd harmonics that are musically dissonant in nature
- With the RNDI-M, the majority of harmonic content is a pleasing combination of 2nd order (octave) and 3rd order (fifth above octave). These musically relevant harmonics, present in subtle amounts, enhance the richness of the original signal and provide a distinctly musical response
- The discrete aspect of the RNDI-M’s design means there are no ICs or digital components that may cause negative effects on the tone
- The RNDI-M is flat within a quarter dB from 28 Hz to 60 kHz, ±1 dB up to 90 kHz, with low-frequency response all the way down below 5 Hz. However, measurements are only part of the equation: combine this extended bandwidth with the output transformer’s harmonic enhancement, and a thunderous low-end emerges that feels an octave deeper than anything else without losing any midrange richness or top-end sparkle
- The RNDI-M’s uniquely high input headroom of +20.5 dBu is capable of handling not only instruments, but a wide variety of sources, such as synths, keyboards, drum machines, and even pre-recorded material. This allows the RNDI-M to inject that coveted Rupert Neve Designs tone into a wide variety of sources