fiesta75,
"If you don’t have at least 1 - 2 subwoofers you are missing a lot of low frequency energy that you didn’t even know was present ". There are no absolutes in audio. Not too long ago I was a big proponent of using dual subwoofers, not just for bass, but I experienced improvements across the audio spectrum. I recently changed amps and in my system/room I prefer my system with the new amplifiers, minus the subwoofers over my system with the old amp and dual subwoofers. Based on my experience, I may never own subwoofers again for 2-channel.