At the end of the day drums should ring. That's what makes them cut through when everyone is at a nice acoustic volume....and especially if the drums are tuned to musical 'notes' However if you are miked up a ringing drum is impossible to deal with. IMHO make sure the tension on each lug is even on all skins remembering that often the musical note the drum makes comes from the bottom heads. Then if it still rings then slightly detune one of the lugs on the batter head until it stops.
A bit of gaffer tape often works too.
Evans heads EC2 seem good from day one. Try a set of those.