Different kinds of product: one is active with its amplifier built in, the other passive and needs one. Judge them on how you want to own the system, not just the specs.
| Area | Better | Why |
|---|
| Bass | evenly matched | Much the same reach (40Hz vs 42Hz). |
| What you buy | depends | Klipsch ProMedia Lumina is a complete system - just add a source. Monitor Audio Bronze 2 also needs an amplifier: more money and another box, but you choose it. |
| Connections | depends | With Monitor Audio Bronze 2 that all comes from the amplifier you pair it with. |
| Upgrade path | depends | Monitor Audio Bronze 2 can be re-amped later and outlive several amplifiers; Klipsch ProMedia Lumina ages as one unit. |
| Size | depends | Klipsch ProMedia Lumina is easier to place; Monitor Audio Bronze 2 is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | B | Monitor Audio Bronze 2: bi-amping. |
| Price | evenly matched | Much the same money ($380 vs $379 a pair) - though the passive pair still needs an amplifier. |
A Klipsch ProMedia Lumina B Monitor Audio Bronze 2
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?
Klipsch ProMedia Lumina suits you if you want one box, ready to play, with nothing else to buy. Monitor Audio Bronze 2 suits you if you already have an amplifier, want to choose the electronics, or expect to upgrade in stages. Neither is the better speaker in the abstract. In a large or open-plan room, Monitor Audio Bronze 2 has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Klipsch ProMedia Lumina 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.