Just bought the sherewood rx-4209, today, sound is ok, but I am disappointed with the base. I put the base to the max, it just makes it louder, you don't really have any base. Is my unit faulty or this is how it is. I am using the speakers from my old Sanyo Hifi and from my Sanyo, as you press the bass button down you really can hear the difference, but with the sherewood, it just makes it louder.