No single best speaker here - they are built to different priorities, and the right one depends on your room, your sources and what you listen to.
| Area | Better | Why |
|---|
| Bass | B | Audioengine A2+ Wireless digs deeper - 65Hz against 76Hz. |
| Built-in power | A | Jamo S 801 PM has the bigger amplifier (50W vs 30W RMS). |
| Connections | A | Jamo S 801 PM adds digital inputs. |
| Size | depends | Audioengine A2+ Wireless is easier to place; Jamo S 801 PM is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | depends | Jamo S 801 PM: a sub output; Audioengine A2+ Wireless: a sub output. |
| Price | B | Audioengine A2+ Wireless is cheaper - $269 against $300, about 10% less. |
A Jamo S 801 PM B Audioengine A2+ 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?
The usual trade-off: Jamo S 801 PM measures better, Audioengine A2+ Wireless costs about about 12% more% less. Whether that gap is worth the money is the call only you can make - and in a normal room it is often smaller than the numbers suggest. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 76Hz anyway, so judge these on the other rows instead. In a large or open-plan room, Jamo S 801 PM has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Audioengine A2+ Wireless 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.