It effectively takes a 3dB increase in power to hear a difference. This is a doubling of power. Unfortunately, you won't really gain much. I gather from your post you are looking for more output. Honestly, as great as that driver is, it's not much a beast in the way of sheer output. It's a sealed driver only, so you're only other option is a larger enclosure at the sacrifice of power handling and cone control, so that just screws everything else.