Engineering Notes

A collection of technical insights, material research, and design principles behind Pure Line Audio products — written for listeners who care about signal integrity, not marketing claims.
Cable Geometry Explained: Why Structure Matters as Much as Materials
Cable Geometry Explained: Why Structure Matters as Much as Materials
Materials matter, but geometry determines electrical behavior. A practical explanation of how spacing, twisting, grounding, and stability shape performance in high-end audio cables.   Read more...
What Is Graphene and Why It’s Used in High-End Audio Cables
What Is Graphene and Why It’s Used in High-End Audio Cables
Graphene is an advanced conductive material used to manage noise and energy behavior in audio cables. This article explains what graphene is and how it interacts with copper and silver... Read more...
Silver vs Copper Speaker Wire and Audio Cables: Which Actually Sounds Better?
Silver vs Copper Speaker Wire and Audio Cables: Which Actually Sounds Better?
Silver and copper audio cables differ not by hierarchy, but by electrical behavior. Conductivity alone does not determine performance. Material choice affects detail, stability, and system balance, and must be... Read more...