Don’t do it. Don’t chuck the stereo away. I moved to Germany for a few years to work there. I left the stereo system packed away and used a Sony receiver for 2 1/2 years. I even bought some B&W P6 speakers in downtown Stuttgart and I liked them. (In a coyote ugly sort of way). Once back home with my stereo the sound was glorious! I had sure missed my stereo.
It can get expensive, but the best thing is to get out and hear some other systems- either in people’s homes or at some stereo shops. Get an idea what you like and try to match that sound in your home system. Plenty of tips and tricks on these forums. Sometimes the little things can make a big difference.
For many years in the past I would think about what a new amp, turntable or speaker would sound like while listening to music. That is not very satisfying. So first thing in my retirement I visited a few shops and Axpona and then I broke open the piggy bank and revamped the whole thing. Now I’m like a kid at Christmas every time I turn on the stereo- for now…