What matters is the frequency response of the speaker as a whole. All a bigger woofer does is make it easier to design a speaker that can deliver power at lower frequencies, but its far from the whole story.
You seriously need to stop worrying.
If you rely on internet rumour rather than your own ears, instead of enjoying the new gear you will end up looking for ways to check it and measure (or worse predict on the basis of other's comments) its performance, which leads to convincing yourself that it has minor issues and has to be upgraded when in reality it probably does the job perfectly well.
In am distressingly familiar with this story in the context of people who buy kit and get frustrated chasing test numbers rather than comparing the results they get against the results they need. They usually end up frustrated and out of pocket, plus they leave a trail of frustrated retailers who have perfectly good kit returned as sub-standard, that they then have to discount as b-stock.