For those looking for getting the Edifier 2.0 R2850DB speakers.
Buy also two resistors of 8.2 Ohm 27 watts. Carefully remove the screws on the midrange drives and extract them, unsolder one wire from it, solder the resistor and the wire to the other end of the resistor. (series circuit).
This way the midrange will no longer scream so loud, you'll get very nice control of the treble if it needs boosted like I need, and the woofer stays at 0 (centre). Excellent sound!