Maatt,
hmmm..... I thought the bass control of the A5 was descent.. (I know it's not the top notch...)
Give it some time... I let mine break'n for a while too- though-my entire system was brandnew then so I wouldn't know which one was the most *harsh* in the the chain...but my system did sound better after a month or so..
anyhoo
good luck with you, too :-)