I've found a lot of discussion online about the benefits of 24-bit word lengths over 16-bit words. They talk about increased "volume levels" or make analogies to having more pixels in a digital image. No one seems to have put this into terms that are easy to understand and accurate. I'd like to offer the follow article link to assist in making this more clear.

I wrote to my good friend John Siau at Benchmark Digital and he responded with the following article. It's definitely worth reading.