Power amplifiers should be boring. They have a single, well-defined function: Make the input signal large enough to run a loudspeaker so that it makes sound at levels suitable for listening to music. Generally, controls and features are few or none. Peter Walker of Quad famously defined the ideal amplifier as a "straight wire with gain." That's just one feature: gain.

To borrow Lyric Hi-Fi owner Leonard Bellezza's words from last month's Re-Tales, the traditional audiophile customer base "is graying."

That doesn't mean the future is bleak—not necessarily. Many in the industry have hope for hi-fi's future. For that potential future to be realized, however, audio dealers must adapt. Interest in better sound seems to be rising. Consider vinyl's resurgence; regardless of your views on vinyl's ultimate fidelity, it's a big step up from the earlier fashion for MP3s and cheap earbuds. (There's good news on that front, too: Those earbuds morphed into Beats headphones, then Beats into good-quality headphones.