I get the pass x350.5 from a dealer to evaluate - the unit was brand new and the first 4 days the krell (fpb 300) litterally blow it away,after that ( I still cannot understand how ) but for one day more the pass was obviosely betterered it- low end, midrange, highs - everything - more spatial info less or no fatigue at moderate levels ( the limit of the wilson) ,so I am continuing to burn it in - I will post another comment shortly
cheers
cheers