I would say give HQPlayer a try, best pre processing digital option, this is software, you will need a computer to run the filters, conversions, modulators etc. it does have DSP in the digital domain at any resolution and it includes a convolver where you can feed your room corrections. You can find more info at audiophilestyle.com
I have been using HQPlayer for years and it is a game changed IMO, if you need more info feel free to PM me
I'm not associated nor I am a dealer or work for anything related to audio,