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DDRC-24

DDRC-24, a USB DAC+DSP Digital Room Correction processor powered by Dirac Live in a tiny form factor
450 USD
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  • Description
  • Specifications
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  • Application Notes
  • Reviews

 MG 5072

miniDSP introduces the DDRC-24, the world’s smallest Dirac Live® hardware processor. Dirac Live®, the world’s premier room correction solution, is now available in an unbelievably compact hardware unit. Powered by a 400 MHz Analog Devices SHARC processor, the DDRC-24 retains the 4-channel output of its sister unit, the miniDSP 2x4 Hd, in order to allow applications like subwoofer integration or even 2-way loudspeakers together with Dirac Live® room correction in a single tiny hardware platform. The matrix mixer and crossover functionality is accessed and programmed with miniDSP’s easy-to-use interface software. An all in one unit with USB DAC + Dirac Live Room Correction + Speaker processing.

I/O capabilities get an upgrade too, with the addition of USB audio streaming up to 192 kHz and a TOSLINK digital input. The miniDSP DDRC-24 will find application in full-sized hifi and home theater systems, on desktops, in cars, in recording studios anywhere a compact, powerful room correction processor is needed.

Features

  • ADSP21489 400MHz Sharc DSP floating point engine
  • XMOS Xcore200 for USB control and bidirectional audio streaming
  • 24 bit ADC/DAC resolution
  • Dirac Live for miniDSP with 4 presets, fully configurable target curve
  • Unbalanced inputs switchable with a jumper between 4Vrms and 2Vrms
  • Toslink digital input
  • Unbalanced outputs: Max 2Vrms
  • USB Audio Class 2 Audio streaming with ASIO drivers, driverless under MAC OSx
  • 4 preset configuration, recallable via IR, Software

IMPORTANT NOTE: A UMIK-1 is not included in the default price, make sure to select one as an option since 1x UMIK-1 is required for performing acoustic measurements when using the Dirac Live software.

DDRC-24 system diagram

 

Dirac live structure

Product Downloads

What's in the box?

  • 1 x DDRC-24
  • 1 x 12V power supply with UK/EU/US/AU plugs
  • 1 x shielded USB cable

Optional Accessories

  • UMIK-1, unique calibration file mircophone for accurate acoustic measurements
  • Audio RCA cables
Digital Signal Processor Engine Analog Devices Fixed point DSP SHARC
ADSP21489

Internal Processing resolution
& Sample rate

32 bit / 48kHz

Input/Ouput Configuration

2 in / 4 out

Audio Input Connectivity

Unbalanced analog input, RCA terminated
Stereo Digital Inputs: TOSLINK (optical)
Stereo USB audio input: USB Audio
Supported ASCR: 20~216kHz

Audio Output Connectivity

Unbalanced output, RCA terminated

Input / Output Max Levels

IN: 2Vrms / 4Vrms (jumper-selectable)
OUT: 2Vrms

Input Impendance
10 kΩ 
Output Impedance 560 
Calibration Software DDRC-24 plugin
Filtering Technology Dirac Live
DSP Presets Up to 4 presets
Dimensions 27 x 119 x 107 mm
Power 12 VDC single supply
2.1 mm round plug / 2.5W
Impulse Response Correction
Infrared Remote Learning
Win/Mac Compatible
UMIK-1 Included
Bass Management
Room EQ Wizard Support

Application notes on miniDSP 2x4 HD and DDRC-24

The miniDSP DDRC-24 includes not only Dirac Live® but also a full set of crossover functions on its four output channels. One use of this is as a flexible tool for integrating subwoofers into your system along with Dirac Live. This application will show you how to build a 2.1 setup.

In this application note, we will show you how to design an active 2-way loudspeaker with the miniDSP 2x4 HD. Using the 2x4 HD, you can either create a conventional (Linkwitz-Riley or Butterworth) crossover, or a linear phase crossover.

In this application note, we will show you how to integrate a subwoofer with your existing loudspeakers by using a miniDSP 2x4 HD. You can use an existing preamp, or replace a preamp and a DAC with the miniDSP 2x4 HD. (In the latter case, you will need to program a remote control to adjust volume in the miniDSP 2x4 HD.)

In this application note, we show you how to use Room EQ Wizard (REW) and its integration with miniDSP to equalize your subwoofer.

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