I have the Presonus R80 and have made a direct comparison with the Adam T8V. The Adams could not keep up overall.
The midrange of the Adams was audibly off compared to the very concise treble.
The bass range was dominant but not very detailed. The Presonus reproduced clear lower mids, with the upper mids slightly recessed.
The treble is very pleasant and blends well with the midrange.
The bass is a little cleaner than the Adams and I like it better overall.
The Amt tweeter of the Presonus speakers is really excellent and doesn't fall off at all.