parent company of both jbl and infinity is same ; harman kardon
if u look at thr products u will find alot of similarity in them
if u get original products of any of these two
thr wont be much differance
if u can get orignal infinity kappa 850 8inch woofer or jbl gto 804 8incher, put them in a 10litr sealed box and u would be very happy. MSRP of these is 100$, if u do find these original do tell me aswell
:d