Is there any benefit having long interconnects and (very) short speaker cables rather than the "conventional" short interconnects feeding an amp and longer speaker cables?

I have 4 monoblock amplifiers each connected to my passive pre-amp with 1m Van Damme interconnects, the monoblocks are each in-turn connected to the speakers by 3m Van Damme speaker cables. If I were to locate the monoblocks right by the speakers with a very short (e.g. 30cm) cable to the terminals and then 3m interconnects is this likely to be better or worse.

I recently read that the Kii 3 speakers go the extra step and are fed with Digital (AES/EBU) cables and internally have individual DACs feeding a D-class amplifier for each of the drivers.
This it got me wondering if there is a poor man's version of this based on a S/PDIF or optical to a DAC feeding the monoblocs for each speaker... may be I am just hallucinating.