One persistent criticism of audiophilia is that it can be expensive. Why this criticism is leveled at, say, Pono—but not at fine wine, high-end apparel, or fancy cars—is one of life's mysteries. I'd say the best signal sources, speakers, amps, headphones, and other products are worth the investment if you know what you're doing. But paying more for the good stuff isn't the only way to be an audiophile. You can get pretty good sound from, say, one of the $600 receivers on our Top Picks
list. And, whatever you may have on your rack, there are other ways of improving your system for little or nothing. Longtime readers will find most of the following tips blindingly obvious. But they are intended for younger readers just getting their systems started.