Siblings in Paradigm's Premier series, so they share a family sound. It comes down to size, output and price.
| Area | Better | Why |
|---|
| Bass | evenly matched | Much the same reach (58Hz vs 60Hz). |
| Amplifier needs | B | Paradigm 600C is more sensitive (94dB vs 91dB), so it goes louder on the same amplifier. |
| Size | depends | Paradigm Premier 220B v2 is easier to place; Paradigm 600C is bigger, which usually goes with fuller bass. Your room decides. |
| Type | depends | A Passive Bookshelf against a Passive Center Channel - a different job rather than a better one. |
| Cabinet | depends | Ported vs Passive Radiator. |
A Paradigm Premier 220B v2 B Paradigm 600C
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?
Paradigm 600C has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. In a large or open-plan room, Paradigm 600C has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Paradigm Premier 220B v2 is the easier speaker to get right. If your amplifier is modest, vintage or valve-based, Paradigm 600C is the safer partner - the other will want more current or more watts to sound its best.
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.