Dear @lewm : Thwe issue is not what you posted. Manufacturers at those high prices like to " talk " showing no single spec.
@mattdrummer said that transient response is the critical subject for him and I have to tell 2 things: first is that matt is only the second gentleman in this and other forums I attend or attended that mentioned transient response that's is where MUSIC reproduction at home start and is not only critical but the most important characteristic in any room/system at any price levels.
Second is that those two TT specs ( w/f and speed stability ) are the most important for that TRANSIENT RESPONSE . Everything is important but always where starts the MUSIC reproduction develpment is there.
Btw, the other audiophile that posted about was me.
R.