i'd rather buy brothers stuff rather than jalan pasar. though brothers is famous for their sub-standard products, some of the cheaper-branded items can be considered. u can actually get entry level kenwood or sony subwoofers coupled with a box at brothers and the only problem is their installation but if u keep an eye on them, or buy them a drink, i'm sure he'll do a slightly better job for u. jalan pasar stuff are simply..$%^$%^$, totally no standard. alternatively you can get decent second hand stuff from forummers. besides u get to test before deciding.