Conclusion: i have this in all 4 doors of my lexus on my stock amp and my kenwood deck and it keeps up with my 15" sub i have on 780 rms. im wanting to mod my front doors and put the 5.25" version in and re-use my 4" i have now in a custom spot under my dash.
Summary: I have been a great fan of the Infinity Reference series speakers as I have now installed them in all three of our cars. However, the last two purchases I have made of Infinity Reference speakers, I noticed that the company is now owned by Harmon. The speakers still sound great and are of top quality but you can no longer install the speakers without additional purchases.
Pros: These speakers have great sound and are of top quality.
Cons: The mounting hardware, speaker wires and speaker grills were not included with the purchase. For what I paid for these speakers, these items should have been included. I would not recommend purchasing these speakers even though they sound great!
Summary: These are great speaker and easy to install we are putting them in a 1934 Ford coupe. while it will be a few months before we preform the final hook up of these we have never been sorry with any product that the Crutchfield team has recommended for our car.
Pros: Great speaker to fit inside a small early Ford coupe.
Cons: Didn't give it a full five stars we have yet to try them out.
Summary: I put them on my motorcycle- BMW 1600GT as the stock ones leave a lot to be desired. Really added range and depth to the music, worth the price. While I had to do a little modification ( very simple ) they fit nicely and glad I bought them.
Summary: Bought to replace pair of blown (not original) speakers. Installation was no problem. Sound is very good. Only gripe is that speakers lack a grill; will have to try to retrofit an old one or find a universal speaker grill.
Cons: No speaker grills, unlike others in the same line.