miniDSP OpenDRC-DI All Digital Floating Point Room Correction DSP


All digital floating point room correction DSP with SPDIF/AES-EBU/Toslink interface. Boxed in sturdy aluminum enclosure.


All digital floating point room correction DSP with SPDIF/AES-EBU/Toslink interface. Boxed in sturdy aluminum enclosure.



  • Room correction with FIR filtering
  • Convolution engine for advanced/Custom filters
  • 2 way advanced filter engine
  • System equalization


Product Details

miniDSP OpenDRC-DI All Digital Floating Point Room Correction DSP

Introducing the OpenDRC platform, a new range of digital audio processor with floating point capabilities for an Open Digital Room Correction (DRC) community. Powered by Analog Devices ADSP21369 Sharc DSP, the OpenDRC engine easily handles complex audio filtering processing such as room correction, FIR crossover filtering, reverb engines… Flexibility, high performance and low cost are the obvious hallmarks of the OpenDRC series.


As an all-digital solution, the OpenDRC-DI (DI for Digital) carries the most common stereo digital audio formats (AES-EBU, SPDIF and Toslink) to match your existing equipment. Combined with an high quality Asynchronous Sample Rate Converter, the processor also easily adapts to any sample rate. The IR learning remote feature and/or rotary encoder will allow control of your source, active preset or master volume without the need of any PC once the unit configured.


Last but not least, the OpenDRC-DI follows the footstep of our proven miniDSP concept: “One hardware, many plug-ins”. An easy to use platform that received praised for its simplicity of use. By setting some strategic partnership with 3rd party software developers, the OpenDRC takes it one step further. From advanced room correction to full featured linear phase crossover, miniDSP products provide an exciting range of audio processing solutions. A convolution engine without a PC in your system.


Looking for an Analog IN, Analog OUT solution? You may want to consult the OpenDRC-AN version instead.




What’s in the box?

  • 1 x OpenDRC-DI boxed in aluminum enclosure
  • 1 x USB cable Type B
  • 2 x Optical fiber cables
  • 1 Universal 5VDC power supply with interchangeable plugs for UK/EU/US/AU


System Diagram



Mechanical Specifications



Item Description
Digital Signal Processor 32bit Floating point Analog Devices SHARC ADSP21369 / 333MHz



Driverless USB 2.0 control interface for Windows/Mac OSx environments

A computer is only required for the initial configuration.

Digital Audio inputs









Digital audio source selectable from IR remote or Front panel:

– AES-EBU on Neutrik 3pin female XLR / Isolated with digital audio transformer

– SPDIF on RCA connector / Isolated with digital audio transformer

– Toslink on Optical connector

The input signal is processed by a high quality onboard Asynchronous Sample

Rate Converter for compatibility with most common sample rate (20-216kHz)

Digital Audio outputs



– Fully balanced audio on Balanced Neutrik XLR connector

– ESS DAC 9023 with 112dB SNR

– Max output: 2Vrms

Sample rate / Resolution


Resolution: 32bit

Sample rate: 96kHz

Template FIR filter capabilities (Important note: FIR capabilities are controlled by the plug-in used and not the hardware itself).



Mono signal: FIR filter with up to 12228 taps @48kHz, 6144 @ 96kHz

Stereo signal: FIR filter with up to 6144 taps/ch @48kHz

Please consult the plug-in specs for more info.

FIR filter storage Up to 4 filter configuration filters stored on unit
USB port USB port type B for real time control and firmware upgrade
Power supply 5VDC single supply / 600mA @ 5V – 2.1 round plug
Dimensions (H x W x D) mm 41.5 x 214.5 x 200mm


Additional information

Weight 2 kg