Good speakers with small woofers = 10 cm/4"

Wow thanks for the comments !

I don't really like the "monitoring sound", sounds not lively enough to my ears, too cold

Yeah for headphone .. Unfortunately i have some tinnitus and headphone get them worse, iem are ok but i don't like be surprised when someone is openning my door .. (when i'm working or whatever ;)

The minuet supreme plus .. Yep, i was too slow to make my choice, i saw them on hifido at a great price but it was too late

But, i found a great pair of Magnat Quantum Edelstein, i can't find a bad review on them, they are really small and have a full sound from what i read, so i ended with them, waiting to receive them !

They are pretty cheap on ebay : http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=231237840713&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2648

At 430 € (half than the original price it seems to be a bargain, i'll tell you later my opinion if someone is interested ;)

Anyway, for for the answers !

Totem in general gets amazing sound out of smaller boxes and drivers.

How about the Silverline Minuet Supreme Plus? Its woofer is a mere 3.25", mated with a 1" silk dome tweeter, set into a finely finished compact 9" x 5.5" x 9.25" enclosure for $699/pair.

Silverline Minuet Supreme +

There is NO better 4 " driver speaker than Totem Rainmakers .

Emotiva Airmotiv 4S. Built-in amplifiers and features a Heil-type folded ribbon tweeter, which is smooth, yet fast and extended.

50cm is seriously nearfield listening. You might want to consider studio monitors that have been designed for use atop the mixing console. The high end variations (Lipinski, et al) are probably too expensive and many of the available pro audio choices are actively powered, but you could check out passive options from Alesis, Fostex, KRK and the like.

Speakers with concentric drivers might allow you to expand your criterion.

Audience "the ones" would fit the bill butout of your price range. Perhaps you should consider a headphone rig.