Thanks adamdea
Im quite interested in DRC as I have a problem with room mode. No doubt, The product like DSpeaker x4 is very interesting and useful, however, I dont want to sell my existing DAC, or to be more precise, I want to use seperate DAC, as my concern is DSpeaker x4 DAC quality. For the last 2 years, I have been using Bricasti M1 DAC which is quite great for 5k-league (Im gonna buy DAVE to upgrade)
It could be great is there is a DRC device with usb INPUT and OUTPUT (DSD-enable), so tha I can use that to feed my DAC
Thanks