Just put in a pair of the JL Audio C2-400X into the dash of my 2000 Porsche Boxster S. and they sound great! I cut the old speakers out to make a mounting bracket. And that work. Overall Sonic Electronix was easy to order from and the speakers sound great.

LOOK .I just bought these beauties. My god they rock!! At first I really underestimated them cause they are so light!! The sound is awesome, you can hear a crisp base!! Excellent buy, highly recommend it.

Just bought and installed JL speakers on my Hayabusa as a replacement for 4" Infinity reference and they out perform reference speaker by far. Using a 2 channel 300 Watt Rockford Fosgate amp to boost the sound and with a little tweeking of the amp they loud with crisp base. Excellent buy!!

They have great sound and would definitely recommend them. Great speakers for the money!

After fitting a JL Audio amp & speakers to my Jaguar XKE I added the JL C2 400x to the front console area which is limited in space, the JL's perform beyond their size & price! Sonic Electronix dispatched quickly & efficiently, good service, would definitely use Sonic again

Overall dope speakers, the sound quality, perferct mid-bass, easy installation (first time i ever installed speakers). Only problem i found was that these are 4" and i seen that i could fit 5.25" speakers for my rear doors.

Definitely 100x better than the speakers i had in my car before. They have a better base and clear sound. Highly recommend.

Ok speakers way over priced. Find something cheaper name doesnt mean anything with these