hello friends I want to buy a bookshelf speaker for my hundred square feet room it should be a balance speaker with not to sharp treble and descent base . it should be a speaker which I can listen to for at least 2 to 3 hours a day. I have shortlisted the following wharfedale Diamond 220, Boston A 25 and A26; Q acoustics 3020; and Pioneer SP bs22 .can you please advise which speaker should buy which I can use listen to at medium volume thank you very much. Also is there s reasonable price network receiver for the speaker in the market . Please help