Hi Sean,
You're probably right regarding the impedance matching of cables and components.
However, this seems to be a simple case of the user having to get used to a more revealing audio cable. The DH is, to me, more revealing than Bettercable, and it is, perhaps, revealing the weaknesses in his system. The brightness is, perhaps, inherent in his system, which he is masking by using the lesser quality cable, or, should I euphemistically say, the warmer cable.
Furthermore, it doesn't seem that Daryl has plugged in the DH lab cable for more than a few minutes. Unless he bought it used, the cable doesn't seem to be burned in. However, even used cables needs to be burned in for at least a few hrs in my experience. But, he didn't state any information on this issue, so it's all assumptions.
For these reasons, I doubt the cable is the culprit.
You're probably right regarding the impedance matching of cables and components.
However, this seems to be a simple case of the user having to get used to a more revealing audio cable. The DH is, to me, more revealing than Bettercable, and it is, perhaps, revealing the weaknesses in his system. The brightness is, perhaps, inherent in his system, which he is masking by using the lesser quality cable, or, should I euphemistically say, the warmer cable.
Furthermore, it doesn't seem that Daryl has plugged in the DH lab cable for more than a few minutes. Unless he bought it used, the cable doesn't seem to be burned in. However, even used cables needs to be burned in for at least a few hrs in my experience. But, he didn't state any information on this issue, so it's all assumptions.
For these reasons, I doubt the cable is the culprit.