Yes, a combination of IIR and FIR should work very well for keeping DSP resources light, propagation delay small an performance still excellent.You can certainly make a MiniDSP work, and I have said so repeatedly in this thread. But it would be nice if it had more computing power.
That's if you disregard any other processing done, and the actual memory availability of the DSP for the tabs. In reality, you may need things like delay, which will eat up memory like crazy depending on your needs. Since MiniDSP is a generic solution, it will reserve fixed bits of the DSP even if you don't need them. This may limit you in what you can actually do, vs what the hardware is capable of. Obviously, this makes it easier for the user to understand.Just divide 900 million by the sample rate to get the theoretical maximum number of taps. It's as simple as that![]()
Maybe DEQX does this differently? Would be an interesting feature to have. I I remember correctly, I think even the cheap Behringer DCX2496 has such a DSP resources counter where you can set up the DSP function until it runs out of resources.