Hi mayukh,
Stuff the cones with some foam or some clean cloth. Please dont push it in too much. You will find the bass tight and to your liking. Try to get a Marantz CDP(used or new). As murali made me realize it will open new doors to you.
Dont worry if you have made the right choice. You have. Give the wharfies some time. Like you, me and my son felt disappointed at first. But after giving them more than 100 hours its a pleasure to hear them, although i have done great injustice to them by their positioning.
All the above things i picked from the forum members only . I am happy to pass it on to you.
cheers
sri