Some more on the right tester:
- Ideally, s/he should have 2 or 3 different systems at his/her disposal, with different character. For example, s/he could have one system with horn speakers and SETs, another with dynamic speakers and hybrid amplification, and headphones with SS. This will help get a broader base of inputs
markl and zspradlin, it's not necessary to meet the ideal standard to have valid inputs. But the closer you come, the more persuasive the insights will be--as always, IMO.
|[zspradlin] no sytem weaknesses is pretty subjective. What one person feels is a weakness in hifi, is a strength to another.
I meant that comment to apply on a macro level. Of course, it's all subjective, but someone using an MP3 player with 96 bitrate files playing through a clock radio is not as well equipped to assess impact of power cords on sound as is someone with Martin Logan Statements and an Accuphase CDP. Again, IMO.
|[markl] In my experience, the effects are much larger than swapping ICs (even VD ICs), or swapping tubes.
Sure, I agree.
|[markl] anyone with a set of ears can easily hear the difference when adding a good quality power cord
Maybe you have been listening critically for so long that you are more sensitive to the differences than most people are. I bet that what's super-obvious to you might not be so obvious to someone else. I've made changes in my system which are blatant to me but which are not even noticed by my friends.
|[markl] The effects of power cable swapping are large enough that they don't rquire all the measures you suggest,
No, they don't *require* them--those were an ideal. Should all the requirements be met, I'd say the case for accepting, without hearing yourself, that a change in power cords makes a significant improvement in system sound would be far stronger.
BTW I think you probably meet most of my ideal requirements, assistant excepted. But I'm happy to listen to opinions from lots of people who don't meet any of the requirements--I'll just give them what I think is due weight.