The only Hifonics subs I have heard are the Atlas square subs. My friend had a pair of 12" subs in his car and they sounded awesome (he used them to replace some L7's). I did not even know Hifonics made subs until then and I was very impressed. I am considering getting a pair for myself.
I Have Two Hifonics Atlas As12sqd4 Subs And I Like Them Over My L7s Very Good Sub //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif