4 ohm (or 6) Bookshelf speakers. Pass Labs 30.8

Hi everyone!

I am having a hard time finding book shelf speakers that run in 4 ohm (or 6 maybe?).  Before I seriously consider the Pass Labs 30.8, I need to at least know what kind of speakers to listen to, price them out, etc.  I am just now building a system and have no speakers, but I see it looks like the 30.8 is ideal for not that many speakers (from what I can see).  Google didn't help much. I live in an apartment, and the room I have isn't ideal for floor speakers, and is perfect for a lower watt amp, I'd rather pay for quality over power I won't use!.  Bass from floor speakers could also be an issue so I'd rather not even entertain that idea.   If 4 ohm and small speaker don't really go together, I will consider the 150.8 instead.  

Many have said "Any 4 ohm speaker", but being able to find a 4ohm book shelf has left me with not much, so far. 

If this isn't really in the cards (small speakers and 4ohm), feel free to be blunt.  Save me time.  :)

So here is what I have found so far.  Any others?  

1.  Harberth Super HL

Thanks everyone in advance.