Here is a streamer/DiracLive unit that would go before your DAC:
https://www.minidsp.com/products/streaming-hd-series/shd-studio
Here's an analog DiracLive that you'd put before your amp:
https://www.minidsp.com/products/streaming-hd-series/shd-studio
Here's an analog DiracLive that you'd put before your amp: