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
@bache Don't give up man, she's out there ;-)
@rocray I have a Denon AVR730H
@loomisjohnson thanks for the confirmations on Cantons. I've read only good things about them. My heart's been set on them and thanks for the accessories4less recco. 
@jl35 You are right. I can only hope to come as close as possible ... 
@jeffersondavis Thanks for the reminder about Sierra 1's. I forgot about them!
@glennewdick Good point about Proacs. I will research them tonight.

So many good responses, thanks all :-)
The LSA 1 is a beautifully sounded, warm speaker with many accolades. Look it up on the forums here for corroboration.

+1 on the Ascend.
There’s also a pair of Silverlines here that will match your needs, though they may be too small for your room:
https://www.audiogon.com/listings/lis954ab-silverline-audio-minuet-supreme-plus-superb-piano-black-m...
And the Elac Debut B6 2.0 is worthy of just about every good word written about it. If only it came in other finishes.

@rado001
Sorry , but i am telling the true, The good drivers cost money.
$500-700 is nothing