Ok... I'm curious too. Has anyone done this yet? I'd like to, but really wanna know how big of an improvement this is - there's only one 3-star review on Crutchfield. I know it's only one person's opinion, however based on the comments, the person doesn't appear to be an Alpine rep. Gone are the days of having a sub in my trunk and this looks like a decent way to clean-up/round out the sound in a simple way.