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The RNDI-8 consists of eight independent channels of RNDI Active Transformer Direct Interface in a single rack space, providing instrument direct injection for electric guitar & bass, synthesizer, keyboard, piezo pickup, 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 supremely natural sound from 5Hz all the way out to well beyond 90kHz. Each channel can handle input levels up to +21dBu (+31dBu with the pad engaged), the low impedance transformer-coupled output drives long lines with minimal loss, and the rugged chassis' steel construction is designed for a lifetime of stage and studio use .
The RNDI-8's signature sound stems from the custom-designed transformers and class-A, discrete FET input amplifiers. The carefully designed union of these two elements is key to the RNDI-8's unique accuracy, tone, and response.
The RNDI-8's custom-wound output transformers provide isolation while adding musical harmonics and dimension to the sound. The low impedance, transformer-balanced outputs excel at driving long cable runs, and the performance is consistent regardless of the connected equipment. This is important for both live and studio environments where the unamplified signal may travel 100ft or more before hitting an amplifier.
FRONT PANEL
IN
Hi-Z unbalanced input. ZIN = 2.2MΩ
THROUGH
Parallel ¼” jack that allows the user to pass the input signal directly to an amplifier.
48V
Indicates when +48VDC phantom power is active on the channel.
GND LIFT
Isolates each channel ground from the chassis ground.
-10dB PAD
Attenuates the input signal by -10dB (¼” THRU unaffected).
REAR PANEL
OUTPUT
XLR DI output utilizing custom Rupert Neve Designs transformer. ZOUT < 40Ω
PIN 1 ISOLATE
Isolates XLR Pin 1 output from circuit ground.
FEATURES
Groundbreaking Direct Tone
When class-A, discrete amplifiers meet Rupert's custom transformers, magic happens. The RNDI-8 contains the unique components and design knowledge that makes it worthy of the Rupert Neve name.
Huge Headroom
Maximum input level is a massive +21dBu (typical), making the RNDI-8 capable of handling not only instruments but also professional line-level sources like interfaces and drum machines. With the addition of a -10dB pad, that number soars to +31dBu – more than enough for even the highest-output DJ mixers.
Rugged Solid Steel Frame
The rugged steel 1U chassis features an industrial-grade powder coating and is built to withstand the severe stresses of life on the road. The included bolt-on rack ears are reversible for multiple mounting options.
Takes All Kinds
The RNDI-8 performs with immense consistency across a wide variety of sources due to its 2M Ohm discrete FET input and huge headroom, providing superb sound for guitars, synths, basses, acoustic instruments, keyboards, and even professional line level devices.
Drive Longer Lines
The low impedance transformer coupled output is capable of driving long lines with unrivaled high frequency performance.
1/4″ THRU Outputs
The THRU outputs can be used to feed amplifier inputs for reinforcement.
Ground Lift Options
Pin 1 Isolate switches are provided on the rear panel to help fix any problematic grounding, as well as Ground Lift switches on the front panel to isolate each channel's circuit ground from chassis ground.
Phantom Powered
Each of the RNDI-8's eight channels is powered by standard 48V phantom power. Power is indicated by blue LEDs on the front panel, one per channel.
