my surround sound has been great for me for these last couple weeks since i got it . but i noticed its not realy giving me " surround sound " the back speakers are so quiet i can hardly hear them and i am sitting about 4 feet away from them/. Example: i was playing saints row on xbox 360 and i turned my back to the car playing music ... it was QUIET!! like really quiet . then when i faced it my front speakers strted bumpin loud as hell ... is this a problem or do all back speakers do this?