I've been in a similar boat. It amazes me how there really is nothing like the SHD. I really don't know of any other ways you can get remotely in the ballpark of the same SINAD performance coupled with ability to do 10 bands of hardware PEQ. Further, that amazement extends to the HiFi market's lack of demand for hardware level DSP and PEQ abilities in general. It makes so much bigger a difference in sound than most upgrades you can do in your chain, yet most still crave a few dB in SINAD instead; let alone those still financially enslaving themselves to specless boutique products.