Biting back. Going closeup, Allnic's spades feature clever bent-back construction to build in spring tension for a superior contact which doesn't slip over time.

Allnic's RCA connector features a split collar and centre pin for the same reason – improved mechanical grip.

This theme continues with the power cord's US-style plug where none of the blades are perfectly parallel. Rather, they aim slightly toward each other so that insertion forces them apart for another tight high-pressure contact that equals better current transfer. Sleeving the plug and its cable transition with a thickly machined aluminium barrel shields both where many competitors allow ingress of RFI/EMI. If noise is the enemy, vigilance is key.