I got a set of these for the front doors after I upgraded the factory speakers. I wasn’t sure what to expect from them since I’m just running off the stock head unit with no amp. The difference is bass output is absolutely amazing! What was a mild thump from the 6x9’s now sounds like I installed a small sub or amp. These plates are an absolute game changer! Installation is super easy and can be done in about 15 minutes per door. I’ll be ordering the plates for the rear doors soon. If you’re wanting to improve the bass and don’t want to or can’t install a sub then these will definitely make a huge improvement.