+1 on Throttle Up, very good quality & reasonably priced.

I had Throttle Up ones originally which were of awesome quality. Unfortunately, I couldn't use them because they were about a 1/4" too thin (they are 1/2" thick overall) and the tweeter in the middle of the speaker (Polk DB651) stuck out a lot (3/4") and would hit the speaker grill, and wouldn't allow me to screw the whole assembly to the fairing.

I ended up having to use Cycle Sounds, because of their thick cone shape, plus they were affordable (I refuse to pay more than $40 for these things.) They're ok, but the holes don't line up for the speaker attachment. Not the end of the world, but I rather a product with no holes that lets you drill your own. One of the new holes I needed to drill was really close to a hole that already came in it and I don't like that.

Same experience with the throttle ups and RF speakers. I am using the Titan ones from a while back and they are hands down just plain built better, I think I could drive over them and not break them. Not sure really if ya NEED that good, but the certainly are.
Kris