The Magnepan 1.6's, which I used to sell on a retail level, are indeed more detailed, and refined sounding overall than the PSB speakers. The Magnepan ISN'T HOWEVER the DYNAMIC SPEAKER that the Silver's are!!!! Infact, the Manepan IS NOT an edequate rock or HT speaker!...nor adequate WITH ANY HEAVY DYNAMIC MATERIAL!!! The Manapan 1.6's, just to put this bias to closure right up front, are TOO FRAGILE, AND DYNAMICALLY CONSTRAIGNED TO HANDLE ANYTHING MORE THAN POLITE, DELICATED, DAINTLY VOCALS, JAZZ, AND INSTURMENTALS!!! (we're talking about a ribbon that can blow out of it's magnetic field should you blow hard on it!)
You will not see Maggies, for instance in a rock reference rig, techno or rap recording studio, nor in any full fledged exotic custom home theaters featured in any respectable custom HT magazines!...or in any reviewers HT rigs for that matter. So, the Maggie indeed has it's place, just not in mine... I already have issue with passive speakers, by-en-large, being too dynamically challenged and restricted. Let's not even go there with "grandma's" speakers!!!(er, the maggies).
So, is the Maggie better than the PSB Silver I's?...depends on who's "Depends" you wear...Just kidding.(ha ha)