But - it's about the fact that it made the 8k's sound (very slightly) different with different cords. The debate I had was whether it was better.

Other 8k owners (Mr Meridian for example) do use non-stock cables on 8k's and find it is 'better'. I don't doubt their views for a second.

Given that inside a DSP speaker we have pre-amps, DACS, amps, x-overs etc, I don't think we can say an 8k is immune and other more obvious front end units are not. If a DAC was in your rack in front of your pre/power amp you'd be sure to include it in your list of units that should have a good power cord. No different if it's inside the DSP.

cheers

Rgds,
Nick