roscoe
You are right, of course. It is time to replace the entire system. The only problem you may encounter is the reproduction of bass found in Big Band/Swing music. That over sized cello looking instrument that I believe is called a Bass will do a number on ordinary speakers at moderate volumes. Check out Steve Tyrell's 'New Standard' CD. Find the track called The way you look Tonight. Listen to the string bass on that tune in your house, then listen to it on a stock system in any car. I think you will get the picture. A good 10" subwoofer in a sealed box with about 150watts RMS will help you out greatly. Personally, I like Sony ES and Pioneer head units. I find them durable and user friendly.