These RF T142 are my favorite speakers, It took 2 hours per speaker to custom install them in the dash of a 94' Tahue,the stock 4x6 or what ever they had in there was a shallow mount speaker and we all know how big RF magnets and Baskets are but worth every minute to get them in. I have a P200-2 running them @ 83 watts in 4 ohms and they just scream clear and loud bouncing off the front windsheild and right into the perfect listening position. So for a speaker with a 40 watt RMS and 80 watt Peak i am impressed at the power they can take. Like i said, there my favorite and i swear by them. i would recommend them to anyone. Thank You Rockford Fosgate , keep up the good work.