I always assumed "garden hose" cables would have better bass, dynamics, etc. In part this was from my background doing speakers, with higher power requirements and lower, complex load impedances. Because planars are in effect a pure resistor, the response is independent of the source and cable resistance, unlike dynamics where complex impedance couples with source impedance to create a voltage divider that varies with frequency and measurably alters bass response. In this case, the first thing I noted about the cable in testing was that with this cable, gauge wasn't affecting bass and so we went lighter to improve ergonomics.
That leave us with capacitance, which is really, really low with this cable, and inductance, which is low enough to not be affecting the audible range. Then you get into the voodoo aspects of geometry, spacing, insulation materials, that are both subtle and complex. We couldn't have done this without stellar support from our cable vendor, who probably has forgotten more than I know on the subject.