Thanks to all for your advice. I did end up returning Denon (listened to one in store and wife was not convinced if it was better than current Onkyo we have). Today I grabbed Klipsch R - 115sw from local store for 449 dollars. Hoping to turn it on this weekend. This thing looks huge..
From what I have learnt so far, if I use crossover low pass filter config of my receiver, this should help my receiver give more power to mid and high frequency signals (whatever power it saves from not having to amplify low frequencies). Anyone with experience please confirm if this is correct understanding.