I think the Axiom dsp units were fixed settings and had dials or switches to compensate for boundaries. Is that what youre looking for?

Here is a better option for 2ch with dirac. Not a bad price either considering all options. Im pushing dirac because it is really worth working through. smile Very powerful tool for customizing your sound.

https://nadelectronics.com/product/c-658-bluos-streaming-dac/