These sit in different price classes - Audioengine A5+ Wireless costs roughly 1.7x what Jamo S 801 PM does. Expect it to lead on paper; the question is whether the gap is audible enough in your room to be worth it.
| Area | Better | Why |
|---|
| Bass | B | Audioengine A5+ Wireless digs deeper - 50Hz against 76Hz. |
| Built-in power | B | Audioengine A5+ Wireless has the bigger amplifier (100W vs 50W RMS). |
| Connections | A | Jamo S 801 PM adds digital inputs. |
| Size | depends | Jamo S 801 PM is easier to place; Audioengine A5+ Wireless is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | depends | Jamo S 801 PM: a sub output; Audioengine A5+ Wireless: a sub output. |
| Price | A | Jamo S 801 PM is cheaper - $300 against $499, about 40% less; arguably a different class. |
A Jamo S 801 PM B Audioengine A5+ Wireless
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Audioengine A5+ Wireless is ahead, but only on 1 of the measured areas, and it costs about 66% more. That is a lot of money for a narrow margin on paper - Jamo S 801 PM looks like the sensible buy unless something else about the Audioengine A5+ Wireless appeals to you. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 76Hz anyway, which makes the cheaper Jamo S 801 PM much easier to justify. In a large or open-plan room, Audioengine A5+ Wireless has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Jamo S 801 PM is the easier speaker to get right.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.