Siblings in Monitor Audio's Bronze series, so they share a family sound. It comes down to size, output and price.
| Area | Better | Why |
|---|
| Bass |
B |
Monitor Audio Bronze Centre 7G digs deeper - 50Hz against 66Hz. |
| Amplifier needs |
evenly matched |
Similar sensitivity (88dB vs 88dB) - both want much the same power. |
| Size |
depends |
Monitor Audio Bronze C150 is easier to place; Monitor Audio Bronze Centre 7G is bigger, which usually goes with fuller bass. Your room decides. |
| Price |
A |
Monitor Audio Bronze C150 is cheaper - $395 against $998, about 60% less; arguably a different class. |
A Monitor Audio Bronze C150
B Monitor Audio Bronze Centre 7G
depends neither is better in the abstract - it turns on your room, placement 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?
Monitor Audio Bronze Centre 7G is ahead, but only on 1 of the measured areas, and it costs about 60% more. That is a lot of money for a narrow margin on paper - Monitor Audio Bronze C150 looks like the sensible buy unless something else about the Monitor Audio Bronze Centre 7G appeals to you. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 66Hz anyway, which makes the cheaper Monitor Audio Bronze C150 much easier to justify. Think about the whole system, not just the speakers: the roughly $603 saved by taking the cheaper pair would buy a subwoofer or a better amplifier, and either usually does more for the sound than the difference between these two.
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.