Here's why amps can be more important than speaker

Does B&W produce a high resolution speakers for 2ch music anymore or just mains center and rears?

I have been buying audio gear for 26 years, and I can honestly say I've never bought anything based on the printed specs. I have this quaint way of always trusting my ears.

The printed specs to me are just a marketing gimmick.

I don't know what the relationships are between the THD and the sound but some of the best SE tube amps I heard have over 3% THD.

In the 70s Japanese manufacturers started a spec war offering amps with incredible #s. Most sounded lousy, my trusty 20wpc NAD seeing many more expensive challangers off. Specs dont mean much these days in sound or marketing. You can find plenty of amps or speakers for that matter with similar specs that sound very different.
Some speakers require lots of current, some work best with low power tubes. Specs can help make a match, but they dont tell you how stuff sounds.

Why is it reasonable? Because distortion is cumulative. There's distortion in the recording mike, cables, recording preamp, disc/vinyl mastering, your sources, amps, cables and speakers. It's like asking "why clean your eyeglasses if your windows are dirty?".

Speaker distortion a fact of physics life. I second the notion - buy with your ears (and within your credit limit, of course), and not with the back of the brochure.