Detail 01
48V phantom power, 4.5mA
The RNDI-M requires 48V phantom power for operation.
Product detailSKU #1500000457120
Rupert Neve DesignsRNDI-M Active Transformer Direct Box
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Independent shopping perspective
The Korena take
The RNDI-M is an active, transformer-based direct box sized for pedalboard use. Its Class-A discrete FET input stage is powered by 48V phantom power, with a 2.2 megohm input and +20.5dBu maximum instrument input. Connect guitars, basses, keyboards, synths, or drum machines, send the low-impedance transformer-balanced output onward, and use the 1/4-inch THRU output when an amplifier connection is part of the setup. A Ground Lift switch addresses grounding issues.
Strong match
Who this is for
- Pedalboard-based direct routing for guitar or bass in studio and live setups.
- Sending keyboards, synths, or drum machines to a transformer-balanced output.
- Setups that need a THRU connection to an amplifier alongside the direct output.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
+20.5dBu maximum instrument input
Defines its stated maximum input level.
Detail 03
1/4-inch THRU output
Allows a simultaneous connection to an amplifier.
Detail 04
Ground Lift switch
Provides a control for unwanted hum and grounding issues.
Final check
Know before you order
- 01Confirm that 48V phantom power is available for the direct box.
- 02If connecting an amplifier as well, plan to use the 1/4-inch THRU output.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does the RNDI-M need external power?
Yes. It is phantom powered at 4.5mA with +48VDC.
02Which sources are named for use with it?
Electric guitars, basses, keyboards, synths, and drum machines are named.
03Can I connect an amplifier too?
Yes. The 1/4-inch THRU output is provided for an amplifier connection.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
6 detailsConnections & power
- Maximum Output Level
- +11.5dBu
- 1khz 20dbu Input Level
- .015% Typical (2nd and 3rd Harmonic)
- 20hz 20dbu Input Level
- .75% Typical (2nd and 3rd Harmonic)
- Output Impedance Zout
- Less than 40 ohms
- Power Requirements
- Phantom Powered, 4.5mA @ +48VDC
- Instrument Input
- +20.5dBu (8.2 Volts RMS)
2 detailsSize & weight
- Product Dimensions
- 3.25” (8.25 cm) x 4.75” (12.1 cm) x 1.75” (4.45 cm)
- Noise 22hz 22khz Unweighted
- Better than -110dBV
3 detailsOther
- 3db
- Below 5Hz
- 25db
- 28Hz–60kHz
- 1db
- 14Hz–90kHz
