Originally Posted by Fr3aKi3
Alpine, Eclipse and Clarion are japanese company and they make some pretty good speakers. As for saying speakers are top notch, it's very subjective. In terms of build quality then that is simple enough to judge but when it comes to the sound which is reproduced then its a different story has different people have different preferences.
Take Boston Acoutics as an example, so many people rave on about the build quality and the fantastic sound. I had a listen for myself and didn't like them, maybe the speakers which costs over 1000 sound fantastic but with what I listened to on my budget (300-600) and I didn't see why people say they're so good. Same deal with Rockford Fosgate splits, I auditioned a set which costs around $550 (sale price) and found they weren't to my taste.
On the other hand when i listened to a set of Focals 165V2 (around 400) and MB Quart Reference series and I liked the sounds that were being reproduced. Power ratings are not the be all and end all when it comes to car audio, and as for saying jap products aren't so great and American and German gear is top notch is somewhat subjective.