The cables really take about 250-300 to fully break-in.What actually is changing from 150 to 300 hours? Are we talking tonality changes as in a more linear tonal response or simply a more extended frequency extremes, or .......... some other sonic attributes?
The cables do experience sonic changes at about 40/100 and 150,however at about 300 hours you have EUPHORIA
There's a lot of discussion on tonality here. This was not much of an issue for me at 0 hours or at 155 hours. Tonality was nearly identical to the Jade Hybrid except for a little bit of bass shyness in the GG Rev. I too never heard any hint of brightness with the GG Rev when used between the Aesthetix Callisto, CAT JL-3 and APL Denon tube CDP products.
What about dimensionality, decays, harmonic structures here? And I do not mean in absolute terms but relative to how the cables were from the start AND directly compared to other cables swapped in and out right then and there. I heard absolutely no improvement here from 0 to 150 hours. Are there any significant improvements in these areas at the 150-300 hours? And did anyone have a reference cable whose strengths excelled in these areas to compare back and forth with the GG Rev's during their burn-in process?