Conclusion: I bought 2 pair of these to go in my 2010 Chevy Avalanche to replace the "premium" Bose speakers in the doors. I was told I needed 2ohm speakers if I panned on using the factory head unit because that's what the factory speakers were. So I tried them and they sound amazing.
Excerpt: i wanted to upgrade my sound in my 2011 corolla s. so i read all types of reviews and watched youtube videos and everybody said nothing by great things about these speakers. and they were so right. the 638's in my front doors sound amazing. when they say concert sound they mean it.
Nice Speaker, Just feed it some power to be happy.
Joe from New Rochelle, NY, Sonic Electronix
29 May 2014
Conclusion: I got this speaker to replace the cheap 2ohm rear speakers in my 2014 Nissan Frontier. Install was very easy, but had to cut factory wiring to connect. Make sure you get the polarity right so you do not have to remove the door panel again.
Conclusion: These are high end speakers,worth much more! Thank you Sonic Electronix for making them affordable for me I love mine they sound amazing and I also have the tree way 6X9's in the rear deck! It's a win win.