I thought I would share a quick personal story about how my opinion about performance power cords and subwoofers.
As part of our partnership with AudioQuest, some of their folks came to the office to show us their wares. Like many in our building at Velodyne, I was already a believer in the benefit of quality shielded interconnect cables, but did not put much stock in to aftermarket power cords. So with some in the office claiming snake oil, and I being dubious myself, we chose to test our DD plus subwoofer with the only variable being a changing of power cord from the stock cord to the NRG-4
and back again.
There was a bit of nervousness on the part of AudioQuest, as they had never A/B tested just a power cable in the field before, and did not know what to expect. The results shocked us all.
The difference wasn't subtle at all, it was night and day different. The DD plus, already known for clarity and tight accurate bass, was dramatically improved by changing the power cord. In fact switching back to the standard cord after listening to the NRG-4 was even more telling as the DD plus became downright difficult to listen to after knowing what it was capable of. Additional tests were made with other variants of AudioQuest power cords and improvements in accuracy, clarity, tightness, transparency, and realism were present and noticeable to even the untrained ears in our office in all cases.
The moral of the story is that after this listening test my opinion about performance power cords was changed, I do believe they can make a significant difference in subwoofer performance. I since changed out the stock cords on my two DD plus subwoofers at home with the NRG-4 cords and even my wife notices the difference.
**Disclaimer: Rob is stepping outside his role as an employee of Velodyne to share a personal experience of non-scientific listening and observation. This story is not intended to be any more factual than any other individuals personal observations through subjective listening. My experiences are mine alone and may not be the same as yours.
Edited for clarity that this is a personal observation and not a scientific statement of factEdited by Rob Morse - 3/25/13 at 2:08pm