i have been following several of the different post pertaining to upgrading khorns to a 2 inch driver/horn and have been abit overwhelmed by all the information on different drivers and horns. im wanting to keep things simple and keep my khorns 3 way and continue to use a passive crossover. i have been looking for a drop in replacement to the k401/k55 that could work with a passive crossover such as the alk universal or alk jr. what is the opinon on going with the Selenium D408Ti 2" driver pair