The Tellurium Q Ultra Blue II mains cable may look almost identical to the original Ultra Blue, aside from the subtle “II” marking, but the moment you plug in a fully run‑in Ultra Blue II, the difference becomes obvious. Within seconds, you can hear why this new generation exists. The presentation is fuller, more natural, and beautifully balanced across the entire range. The top‑end detail remains as crisp and refined as before, but now the rest of the spectrum rises to meet it, creating a more cohesive and engaging listening experience.