The different HAWK-models are exactly the same handmade cable on the inside.
The differences are the different plating on the IEC and power plugs and color of course. The leads of the cable are marine grade 16 AWG multi-core OFC where each strand is individually plated with tin. Due to higher resistance in the tin, the electrons are reluctant to change strand, though creating a sort of pseudo Litz wire.
The results are less diode effects.
The isolation consists of PE, it has the same dielectric constant as Teflon but is much more flexible. The leads are arranged in a HEXA MATRIX CORE geometry, to reduce EMI and RF without the negative effects of screens and shields.
The BLUE HAWK offers the hawk cable with the famous Oyaide 037 connectors. The results are a strong dynamic sound with a hint of crispy freshness that goes along fine with tube gear or just as the personal flavor and choice of sound preferences.