No, he just changed out the stock to the Dayton brand. I have read that adding the 10 Ohm resistors is worthwhile and it seems fairly easy to do. One thing that I did notice while I was checking the internal wiring was that the magnet covers on the horns have been removed whereas the covers on the woofers are in place. Will this affect anything? The speakers are not near a TV. Thanks again for all the help. After a 25 year absence, it's good to have Klipsch speakers in the house once more.