I owned both units for a number of months. Both units sound neutral and render virtually the same amount of detail. I like both of them, but they dont sound the same. Ill try to describe the differences.
The SE sounds heavier, with more heft and weight, and the base is stronger. The Placette is lighter, faster and more agile. Imaging is wide and deep for both. Your source recordings will be accurately reproduced in all their glory (or gory).
The SE is more dynamic, while the Placette is more transparent. At lower listening levels, the SE delivers more dynamic impact than the Placette. The output tracking between channels on the SE is not nearly as accurate as the Placette. The Placette is always dead on, while the SE favors one channel over the other at the lower volume levels. Once you get the SE beyond the 9:00 Oclock position, it smoothes out, but never matches the Placette for a stable dead center sound stage.
I eventually bought a Placette Active and sold both passive units. I recommend the active, but it is a more expensive option.
Rick