HOME THEATRE SYSTEM. I PURCHASED MY FIRST HOME THEATRE SYSTEM FROM SONY, ( DZ 556KB ) RECENTLY.

Question

I PURCHASED MY FIRST HOME THEATRE SYSTEM FROM SONY, ( DZ 556KB ) RECENTLY. BEFORE THAT MY LISTENING APPARATUS WAS MAINLY A HI-FI STEREO SYSTEM WITH A VERY GOOD FREQUENCY RESPONSE OVER THE ENTIRE AUDIO RANGE. THE MAIN PROBLEM I AM FACING WITH THE HOME THEATRE SYSTEM IS THAT ALLTHOUGH THE LOW FREQUENCIES ARE ASTOUNDING TO HEAR, THE HIGH FREQUENCY RANGE LEAVES A LOT TO BE DESIRED.ITS ALMOST LIKE LISTENING TO SPEAKERS WITH JUST A SUBWOOFER AND A MIDRANGE UNIT. CAN ANYTHING BE DONE ABOUT IT? THANKS!