Processor Adjustments With 2 Channel Preamp

in the processor vs 2-channel preamp discussion, i am firmly in the 2-channel preamp camp. however, there are some beneficial controls / adjustments seemingly only possible with a processor - such as delays for speaker distance offsets, channel level matching, and high pass filtering of the mains.

just wondering if there exists a standalone product that can accomplish some of these niceties ahead of the DAC and preamp (digital in and digital out).
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