good - not great --yet
I read ALL good reviews on these, then bought these to replace OEM front speakers, replaced one and hooked stereo back up to briefly compare the two and I honestly didn't hear a significant difference, although I haven't installed my amp yet. ONE thing that I have read NOWHERE in any specs or reviews: On the INSIDE flap of the box it reads : WARNING: this product contains a high performance tweeter. If there is a tweeter already installed in your car, then you must disconnect its terminals. If you leave the original tweeter connected and connect this product in parallel, then a fault may develop in this product, so you are strongly recommended not to do so. That is precisely what i had intended on doing, replacing my 5.25" with alpines, and also upgrading the tweeter in my stock 6-speaker buick. Why is this warning hidden on the inside of the box and not on any sites?