Do standalone digital-to-digital EQ and Room Correction products exist? SPDIF in SPDIF out


Looking at a DAC that has digital S/PDIF (RCA) In/Out called a "monitor loop"..

The idea is to insert your component of choice in the digital path to apply EQ or Room Correction.

I cant seem to find any of these simple digital-to-digital S/PDIF EQs out there.  Many seem to be overkill for this application with their own built-in DACs, multitude of other connections, etc...

Products that almost fit this scenario, but not quite, are:
- Schiit Loki (analog only)
- DSPeaker Anti-Mode 2.0 Dual Core (optical only)

irave

Showing 1 response by irave

Along with some of the recommendations so far, persistent googling has turned up the following options:

- miniDSP SHD Studio All in One Streaming processor with Dirac Live Digital Room Correction ($899 USD)
- miniDSP DDRC-22D All digital Dirac Live correction DSP ($725 USD)
- miniDSP OpenDRC-DI All Digital Floating Point Room Correction DSP (FIR Filters) ($325 USD)
- miniDSP nanoDIGI 2x8 B All Digital Fixed Point EQ DSP ($170 USD)
- Z-Systems RDQ-1 Reference Digital Equalizer ($1500 USD used)

The  DDRC-22D seems to be a good choice with Dirac support.  The SHD Studio is a good choice also but I dont need the streaming.

How destructive these are to the signal in a HiFi application is yet to be seen.  I read that the cheaper nanoDIGI may introduce some phase distortion for mid-range EQ adjustments, which is over my head but certainly a red flag.

Anyone here have any experience with them?