Hi spiffnme,
Nice to see you back. And yes, you're correct, the in-wall/on-wall hybrid would be the better option because you will get more bass extension and a fuller-sounding upper bass.
That's because the enclosure is larger than the strictly on-wall version, which require no hole-drilling.
All my listening tests to these various models are done without a subwoofer operating. The midrange and highs are very similar to identical from all three. But on A/B comparisons (to the stand-alone equivalents), there is less upper and lower bass from the on-wall models.
Regards,
Alan
