What improved bass more than anything in my system was swapping the Nordost Vishnu used at the wall with a single Nordost Brahma. The first power cord really sets the tone for what will follow. But, I imagine this might not be as effective when not using cords from the same manufacturer.
Mixing and matching may give you a short term gain. But where do you go from there? Another benefit of using cords from the same manufacturer is you gain a predictable upgrade path. I have a half dozen friends who started with Nordost Magus and moved on from there. There has been tremendous consistency in our findings as we've upgraded.
When I added the Brahma to my Vishnu loom as described above, my results *exactly* matched the results a friend got when he did this same thing. And I know exactly what to expect when I add a Valhalla power cord at some future point. (That's my next move actually. I will use a singe Valhalla at the wall. This will then be followed by a Brahma used between my QX4 and QB8. Then Vishnu cords will run from the QB8 to all my components.)
Lastly, I should mention that prior to using Nordost power cords, I used a mix of Lessloss, ESP, and PS Audio cords. Those cords retailed for between $600 and $750 each. A complete loom of the $180 Magus humiliated the mix of much more expensive cords. Magus was a huge upgrade and confirmed for me that the loom theory is correct.
Ken
