and that's also why I posted the link to voltsec's paper... cause he makes the same observation...

the problem with isolating one spec (any particular singular spec) is that it invites mischief in the design process...

almost any design (in a wide range of fields) is made easy if the customer only cares about one specification and will trade any and all to achieve it....

but the pumping up or pumping down of any singular spec (in isolation) in an audio transformer just leads to "specsmanship" not necessarily a good overall well balanced design that will work well and sound good.

if you look at your reasons as stated above and voltsec's as stated in his post (down near the bottom of his post).... that pretty much captures my take on specsmanship games.

We try to optimize a range of values and parameters and etc... that produce (hopefully) a good quality, balanced, great sounding transformer. Others can design to isolated arbitrary specs... and take their chances on acheiving a good overall design.

msl