iMac Pro promises ‘all new speakers’, not so the ‘non-pro’ models

In the webpage touting the upcoming iMac Pro, Apple says it has “all new speakers” and adds: 

“iMac Pro is as epic to your ears as it is to your eyes. Its enhanced stereo speakers deliver broad frequency response, rich bass, and more volume. So you’ll be able to hear that crashing cymbal, multilayered effect, or sample-based sound, all with remarkable fidelity.”

Alas, the non-pro iMacs don’t get enhanced speakers? An Apple rep tells me that the “updated iMac functionality is the same as the previous generation; the only change is that they’re made with more recycled plastic (60%).”