A book shelf speaker to go on a bookshelf.

I'm not very familiar with small monitor speakers. Are any of them difficult to drive? Will a 50 wpc SS integrated, such as a NAD 320, be enough to handle the speakers mentioned in this thread? Sorry for the interruption, but any info would be greatly appreciated.

thanks

I'm using a NAD 7175 (75 wpc) and it plays plenty loud in my 12x20 room, long wall placement, even though the are only 85db sensitive. They are 4 ohm BTW.
From Aerial's page, "Tonal balance remains good even when placed on shelves or wall mounted." I think wall placement helps out the bass.

Anyone know how the Paradigm Studio 20 compares with the Von Schweikert Vr-1's?