Best bookshelf speakers


Hi all,

I'm looking to buy a pair of good bookshelf speakers and since a lot of you here seems to know about speakers much more then me, I figured I'd ask for advice.

Here are the parameters I'm working with / looking for:

- The room is about 1200 cu/ft
- Looking for great performance at low volume
- Rich timbre
- Rich, warm bass
- Natural highs (not metallic-sounding)
- Low frequency range in around 40Hz (preferably 30Hz, but I know, there are hardly any in this range at my price point)
- $500 - $700, new or used

So far I am considering the following options (in no particular order):

- KEF Q350
- Dali Zensor 3
- Canton Chrono 503.2
Wharfedale Diamond 225

So my questions are:

1) From my list of 4, which would be your choice?
2) What other bookshelf speaker would you add to the list that fir my parameters?

Any thoughts are appreciated
rado001
I think there is a lot of good quality parts that go into the Focal line of speakers and they sound very good. Good prices are available on new and referbished units.
+1 lak. The Focal Chorus 706 are now sold new for $550. I have a pair in a secondary system. They fit your room size well. Have a very articulate midrange and treble, doesn't go as low as you are looking for ( at your budget this is expecting too much), however very satisfactory bass for a small room. Image and soundstage well. 

Dali Zensor 3 all the wayyyy!
 They need a LOT of running in for the bass to come alive..
There is a pair of LSA 1 monitors in Black Ash for sale here that are a SCREAMING deal...
Check out the mini Philharmoniter at Philharmonic Audio. Dennis makes some outstanding speakers that are hard to beat in their price range.