Price alone doesn’t tell and it shouldn’t be a deciding factor. So, I’m wondering, how can a buyer figure out that subwoofer “A” is twice as good as subwoofer “B”? If I’m going for dual subs but find out that one sub of twice the quality is better than two subs of initial choice, I sure don’t want to spend all that money and end up with a sub that’s only one and a half times as good which will miss both targets (dual subs or one very good sub).

This is very risky unless there’s a clear and unbiased guideline on how to rate subwoofers.