http://creativesound.ca/details.php?model=FR125SRPLUSERT26CSS FR125SRPLUSERT26FR125SR full range plus tweeter kitThis kits adds the ERT26 to the FR125SR and allows it to fill in the top which some people like over the FR125SR by itself. Either capacitor rolls the ERT26 off at about 7.5Kh or 10KHz and a choice of 2 resistors allows the level of the tweeter to be adjusted to taste.The kits also include ports, binding posts and wire. See the "Downloads" section for a number of FR125SR cabinet suggestions, some of which would allow the ERT26 to be added. --------------------------------pitam zbog ovoga ....u kitu vidim samo dva otpornika i dva kondezatora koji treba da rezuna 7.5 i 10khzno ne vidim koje su im vrednosti