Rupert Neve Designs RND-DIM
UPC/EAN #763854076941
MPN #RNDI-M
$289.00
Save 19.5%, MSRP $359.00
Compact DI with custom transformers wide bandwidth class-A FET input 2.2M? impedance +20.5dBu headroom rugged steel build phantom powered
The RNDI-M brings the stunning tone & clarity of its award-winning counterparts to an even more
compact and pedalboard-friendly format, with the exact same custom Rupert Neve Designs transformers
and discrete FET input stage as the best-selling RNDI, RNDI-S and RNDI-8. By streamlining its feature
set and housing the electronics in a rugged & 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 &
vibrancy of a Rupert Neve Designs DI.
Overview
The RNDI-M provides instrument direct injection for electric guitar & 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 5Hz all the way up to well beyond 90kHz. It can handle input levels up to +20.5dBu, 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.
Signature Sound
The RNDI-M's signature sound is primarily the product of a custom Rupert Neve Designs transformer and
a class-A, discrete FET input stage. The carefully orchestrated union of these two elements is key to the
RNDI-M's unique accuracy, tone, and response.
The Custom Transformer
The RNDI-M's custom-wound output transformer provides exceptional passive isolation while adding
musical harmonics and dimension to the sound. The low impedance, transformer-balanced output excels
at driving long cable runs, and its performance is consistent regardless of the connected equipment. This
is equally important for both live and studio environments where the audio signal may travel almost 100ft
before hitting an amplifier.
The Class-A, Discrete FET Amplifier
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 Megaohms that ensures consistent performance with a wide variety of instruments
& 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. Furthermore, 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.
Wide Bandwidth, Giant Headroom
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.
Features
Groundbreaking Direct Tone
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 +20.5dBu, 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 2.2M
Ohm discrete FET input stage and high headroom. The RNDI-M can be used with confidence on guitars,
synths, basses, acoustic instruments, keyboards & 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.
Specifications
Noise (22Hz - 22kHz, Un-weighted)
Better than -110dBV
Input Impedance (ZIN)
Instrument Input: 2.2 M?
Output Impedance (ZOUT)
Less than 40 Ohms
Maximum Input Level
Instrument Input: +20.5 dBu (8.2 Volts RMS)
Maximum Output Level
+11.5 dBu
Frequency Response
+/- 0.25 dB: 28 Hz - 60 kHz
+/- 1 dB: 14 Hz - 90 kHz
-3 dB: Below 5 Hz
Total Harmonic Distortion + Noise (THD+N%)
@ 1 kHz, +20 dBu Input Level: 0.25% Typical (2nd and 3rd Harmonic)
@ 1 kHz, -20 dBu Input Level: 0.015% Typical (2nd and 3rd Harmonic)
@ 20 Hz, -20 dBu Input Level: 0.75% Typical (2nd and 3rd Harmonic)
Power Requirements
Phantom Powered, 4.5mA @ +48VDC
WEIGHTS & DIMENSIONS
Product Dimensions (W x D x H): 3.25" (8.25 cm) x 4.75" (12.1 cm) x 1.75" (4.45 cm)
Shipping Dimensions (L x W x H): 4.125" (10.5 cm) x 5.125" (13 cm) x 2" (5.1 cm)
Shipping Weight: 1.25 lbs. (0.57 kg)
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