Help needed to convert Dali Spector 6's crossover to active one..

Hi friends,

I have a pair of Dali Spector 6 speakers that have been sitting in my upstairs storage for a long time. The reason they are sitting in the storage is that I have tried them with several different amplifiers but I can't get the performance I want. The bass is too boomy (my room is about 40m2), the mids are weak and the stage is quite narrow.
I recently thought about upgrading the crossover and instead of a passive crossover, an active crossover + linear amplifier (for example a pair of LM3886 chipamps) seems like a better choice.
Dali's datasheet gives 2.5K as the crossover frequency. However, I don't know what kind of crossover (6db-12db or so) is in it. (I opened the rear binding post cover but I couldn't reach the crossover because the cables were too tight)
Do you think the idea of active crossover + chipamps would improve the sound?
If so, what kind of crossover would you recommend?
Thanks in advance.