isolation transformer vs line conditioner

Sean, I know you are characteristically forgiving of ignorance...

... most power supplies are lacking, hence the great variance in power cord effectiveness from component to component.

When a component gains a lot from a power cord upgrade, does that indicate it has a poor internal power supply, or a good one? I would have thought the former, but am I right?

The more responsive the component is to power cord changes, the poorer the design of the power supply. Sorry if this was unclear. Sean
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Sean, what do you recommend in a iso transformer, i.e brand, make, - - let's say for digital, dac / transport. And also for the amp?

Scotty: You guys are killing me with stuff that can be found in the archives. The more times that i have to repeat myself, the less time i have to help in other areas : )

The two brands that i've had the best luck with were Xentek and Topaz. That does not mean that everything that Xentek and Topaz makes will be suitable for what you want. We are primarily interested in the ultra-isolation types although their standard iso's are still FAR superior to a toroidal design. Just make sure that the max load used by all of the equipment doesn't exceed 60% of the rating of the transformer. Using heavy enough gauge wire in and out of the Iso is also important.

Bare in mind that some transformers of equivalent KVA rating and isolation figures can have different size cores. If both transformers are identical in terms of electrical spec's and power ratings, go with the one that has the largest core. Sean
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Sean, Thanks, and sorry, I found the 'archived' posts where you recommend the Xentek and Topaz, after the fact :). I know you were going to post something to the effect of how to make the 'best' out of dedicated lines using Romex....which is what I used...now that you have time in other areas...:)...what are your thoughts on this one? Or, did you post it somewhere else already? Scott