Don't fall victim to specs
I completely agree if it's within 20-20kHz. But if you're not feeling everything below 20Hz, it's real.
McIntosh MHT300 20Hz-20kHz Frequency Response
Given that movies have content well below 20Hz, what do you guys think of a -0.5dB 20Hz frequency response? It's probably worse below 20Hz. Their preamps have similar specs. For premium pricing, it falls short of even cheap Chi-Fi, not to say Chi-Fi sounds better. It probably wouldn't be a deal breaker if you have money but for everyone else, it's hard to justify a premium price for sub-stellar specs.