My purchase was motivated by the reduced size of the speakers in relation to their performance.

SOUNDS

The lows are extremely precise and go really deep.
The sound level can be very high without being aggressive nor distorting.
The speaker doesn't vibrate nor resonate like another model I used to have (BEHRINGER B2031), which nevertheless works fine for the price!!
The sound of the BM6A is rich and detailed. You can hear everything and the stereo image is very nice (but not exaggerated).
The dynamic response is mind-blowing and cruel to the mic preamps and recorders!!!!!

OVERALL OPINION

I bought them in January 2004.
I use them for music production with acoustic instruments and they tell me the truth.
I also have a pair of TANNOY System 600s and there's simply no comparison.
The BM6A are much more faithful, more transparent and less ear-fatiguing in the long run.
Long live Dynaudio!!!!
They are worth the investment.
But be careful with the placement, it's better to give them some space to breathe.