MiniDSP DDRC-88D Digital Signal Processor

Electrical Disclaimer Further Information

I'm looking to sell my MiniDSP DDRC 88D and Arvus HDMI-2A. From HDMI the Arvus-2A will output the 8 channels (where present) in digital AES/EBU to the DDRC 88D from decoded PCM on the HDMI input on the Arvus. Once the DDRC 88D receives the digital signal, channels can be assigned, crossovers/levels/distances set and Dirac used. My principle was to keep the signal digital as far along as I could with the only digital to analogue conversion being done before the amplifier outputs.

Neither device can decode any Dolby or DTS formats, both need a decoded PCM signal. I was able to set the output of my Oppo Bluray play to decode the incoming signal and then output PCM on the HDMI audio output of the player. The outputs of the DDRC 88D are digital, so you will need a DAC or DACs to convert that to analogue.

DDRC 88D Info

From MiniDSP

miniDSP is pleased to introduce the DDRC-88D, the digital I/O version of the well-known DDRC-88A analog I/O Dirac Live processor. Housed in a compact lightweight chassis, the DDRC-88D provides a full 8 channels of Dirac Live room correction via professional AES/EBU digital inputs and outputs. With 8 channels of Dirac Live processing, the DDRC-88D is ideally suited for professional surround-sound studio and cinema applications. Dirac Live’s renowned room correction capabilities ensure the most accurate and immersive surround experience for mastering and playback. An inexpensive optional software upgrade adds additional processing functions including bass management and active speaker implementation. The DDRC-88D is configured via USB and a user-friendly software suite that runs on Mac or Windows. Four full preset configurations are stored onboard and can be recalled easily from the front panel or with a remote control.

Features  Dirac Live® Room Correction  All digital processor (AES-EBU) Hardware  Analog Devices SHARC DSP  32-bit floating point  8ch AES-EBU input  8ch AES-EBU outputs  Front panel volume control  IR control with learning feature Software Control  Dirac Live Calibration Tool  Firmware upgradeable  4 preset memory stored onboard  Apple remote support Power  Single external 12V supply Applications  Multichannel room correction  Studio tuning  Commercial AV installs  Auditorium correction

There won't be anymore firmware upgrades as it isn't supported anymore, but I have the software to configure and will put onto a USB. To use Dirac you will just need to create an account and the DDRC-88D will appear when you run the software. The PC you are running Dirac from will need to be connected to the DDRC-88D via USB and go from there. I'm not selling a microphone, so you will need one of those to take your measurements. The way I set it up was 5.2, but within the 8 channels you can do as you please. There is a manual for the device and Dirac Live as well, so have a look through to see if it suits. Bass management is included with this unit so you will have that functionality.

Arvus HDMI-2A

From Arvus

CONVERT up to 8 Channels audio:

• HDMI PCM to AES/EBU (audio only)

INPUTS

• HDMI

OUTPUTS

• AES/EBU via 4 x XLR connectors

• HDMI pass-through (up to 4k)

• 16 & 24 bit compatible

• Decodes up to 8 channels at :

  • 44.1kHz / 48kHz

  • 88.2kHz / 96kHz

  • 176.4kHz / 192kHz

• HDMI 2.0 pass-through output

This isn't nearly as complex and there is no configuring. Again it needs a decoded PCM signal. I included the Arvus because it's pretty hard to use the DDRC-88D without it. See the pictures, but the cables are as pictured. For the DB25 cable there are four AES/EBU cables that go to the Arvus and the other four will go to the DAC/s

Send me a message if you have any questions and I'll answer them the nest I can.