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I wonder exactly what she meant by that (a "true stereo system")? Not connected to the TV? Only two speakers (that are small and no subwoofer)? Old school (phono/tape inputs only, no remote control, console)? Receiver only (no separates)? Seems like some education is in order.
A convenient, simple, small, and modern stereo system has never been more affordable. CD quality streaming with completely portable access to millions of albums is available for $20/month or less. All-in-one and simple to use streamer/DAC/preamps are also available. And active speakers can bring full range sound in small/inexpensive packages.